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Freezing-point depression

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190: 198: 1377: 1303: 38: 986: 46: 384: 1298:{\displaystyle \Delta T_{\text{F}}={\frac {\Delta H_{T_{\text{F}}}^{\text{fus}}-2RT_{\text{F}}\cdot \ln a_{\text{liq}}-{\sqrt {2\Delta C_{p}^{\text{fus}}T_{\text{F}}^{2}R\cdot \ln a_{\text{liq}}+(\Delta H_{T_{\text{F}}}^{\text{fus}})^{2}}}}{2\left({\frac {\Delta H_{T_{\text{F}}}^{\text{fus}}}{T_{\text{F}}}}+{\frac {\Delta C_{p}^{\text{fus}}}{2}}-R\cdot \ln a_{\text{liq}}\right)}}.} 158:. The freezing-point depression prevents radiators from freezing in winter. Road salting takes advantage of this effect to lower the freezing point of the ice it is placed on. Lowering the freezing point allows the street ice to melt at lower temperatures, preventing the accumulation of dangerous, slippery ice. Commonly used 217:. This elevated concentration of solute decreases the freezing point of the water inside them, preventing the organism from freezing solid even as the water around them freezes, or as the air around them becomes very cold. Examples of organisms that produce antifreeze compounds include some species of 129:
result from a lowering of the chemical potential of the solvent in the presence of a solute. This lowering is an entropy effect. The greater randomness of the solution (as compared to the pure solvent) acts in opposition to freezing, so that a lower temperature must be reached, over a broader range,
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are equal. When a non-volatile solute is added to a volatile liquid solvent, the solution vapour pressure will be lower than that of the pure solvent. As a result, the solid will reach equilibrium with the solution at a lower temperature than with the pure solvent. This explanation in terms of vapor
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In the liquid solution, the solvent is diluted by the addition of a solute, so that fewer molecules are available to freeze (a lower concentration of solvent exists in a solution versus pure solvent). Re-establishment of equilibrium is achieved at a lower temperature at which the rate of freezing
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must be known, and the procedure is primarily useful for organic compounds using a nonpolar solvent. Cryoscopy is no longer as common a measurement method as it once was, but it was included in textbooks at the turn of the 20th century. As an example, it was still taught as a useful analytic
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Ge, Xinlei; Wang, Xidong (2009). "Calculations of Freezing Point Depression, Boiling Point Elevation, Vapor Pressure and Enthalpies of Vaporization of Electrolyte Solutions by a Modified Three-Characteristic Parameter Correlation Model".
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The simple relation above doesn't consider the nature of the solute, so it is only effective in a diluted solution. For a more accurate calculation at a higher concentration, for ionic solutes, Ge and Wang (2010) proposed a new equation:
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becomes equal to the rate of liquefying. The solute is not occluding or preventing the solvent from solidifying, it is simply diluting it so there is a reduced probability of a solvent making an attempt at freezing in any given moment.
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Ge, Xinlei; Zhang, Mei; Guo, Min; Wang, Xidong (2008). "Correlation and Prediction of Thermodynamic Properties of Some Complex Aqueous Electrolytes by the Modified Three-Characteristic-Parameter Correlation Model".
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is 3.9 °C·kg/mol. By melting lauric acid with the unknown substance, allowing it to cool, and recording the temperature at which the mixture freezes, the molar mass of the unknown compound may be determined.
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Ge, Xinlei; Wang, Xidong; Zhang, Mei; Seetharaman, Seshadri (2007). "Correlation and Prediction of Activity and Osmotic Coefficients of Aqueous Electrolytes at 298.15 K by the Modified TCPC Model".
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Pre-treating roads with salt relies on the warmer road surface to initially melt the snow and make a solution; Pre-treatment of bridges (which are colder than roads) does not typically work.
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At the lower freezing point, the vapor pressure of the liquid is equal to the vapor pressure of the corresponding solid, and the chemical potentials of the two phases are equal as well.
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of an unknown substance via the freezing-point depression. The choice of lauric acid is convenient because the melting point of the pure compound is relatively high (43.8 °C). Its
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FPD measurements are also used in the dairy industry to ensure that milk has not had extra water added. Milk with a FPD of over 0.509 °C is considered to be unadulterated.
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can depress the freezing point of water to about −21 °C (−6 °F). If the road surface temperature is lower, NaCl becomes ineffective and other salts are used, such as
405: 620: 531: 1702: 563: 395:, the extent of freezing-point depression depends only on the solute concentration that can be estimated by a simple linear relationship with the cryoscopic constant (" 1934:
Ge, Xinlei; Zhang, Mei; Guo, Min; Wang, Xidong (2008). "Correlation and Prediction of Thermodynamic Properties of Nonaqueous Electrolytes by the Modified TCPC Model".
237:), the molality is increased temporarily as a reaction to cold temperatures. In the case of the peeper frog, freezing temperatures trigger a large-scale breakdown of 710: 590: 766: 740: 125:
pressure is equivalent to the argument based on chemical potential, since the chemical potential of a vapor is logarithmically related to pressure. All of the
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of the solvent in the mixture is lower than that of the pure solvent, the difference between the two being proportional to the natural logarithm of the
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This is also the same principle acting in the melting-point depression observed when the melting point of an impure solid mixture is measured with a
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Ge, Xinlei; Wang, Xidong (2009). "A Simple Two-Parameter Correlation Model for Aqueous Electrolyte Solutions across a Wide Range of Temperatures†".
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that flows at a lower temperature than the silver pieces being joined), or the mixing of two solids such as impurities into a finely powdered drug.
367:, and the freezing point is often easier to measure with precision, which means measurements using the freezing-point depression are more precise. 107:(a mixture of salt and other compounds in water) to remain liquid at temperatures below 0 °C (32 °F), the freezing point of pure water. 268:= observe; "observe the cold") and relies on exact measurement of the freezing point. The degree of dissociation is measured by determining the 1782: 130:
before equilibrium between the liquid solution and solid solution phases is achieved. Melting point determinations are commonly exploited in
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In principle, the boiling-point elevation and the freezing-point depression could be used interchangeably for this purpose. However, the
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Freezing temperature of seawater at different pressures and some substances as a function of salinity. See image description for source.
99:. In a similar manner, the chemical potential of the vapor above the solution is lower than that above a pure solvent, which results in 1688: 17: 154:
The phenomenon of freezing-point depression has many practical uses. The radiator fluid in an automobile is a mixture of water and
1706: 1364:, which typically requires 3 adjustable parameters. For the TCPC model, these parameters are available for many single salts. 91:. The resulting liquid solution or solid-solid mixture has a lower freezing point than the pure solvent or solid because the 170:
or a mixture of many. These salts are somewhat aggressive to metals, especially iron, so in airports safer media such as
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The freezing point is the temperature at which the liquid solvent and solid solvent are at equilibrium, so that their
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of the solution, as the formula above results in a positive value given that all factors are positive. From the
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into the blood. With the formula below, freezing-point depression can be used to measure the degree of
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Freezing-point depression is used by some organisms that live in extreme cold. Such creatures have
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calculated using the formula above, the freezing point of the solution can then be calculated as
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This article is about the phenomenon caused by solutes. For the phenomenon in pure fluids, see
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is the activity of the solvent in the solution (water activity for aqueous solution); Δ
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means through which they can produce a high concentration of various compounds such as
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Treberg, J. R.; Wilson, C. E.; Richards, R. C.; Ewart, K. V.; Driedzic, W. R. (2002).
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is the normal freezing point of the pure solvent (273 K for water, for example);
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Freezing-point depression can also be used as a purity analysis tool when analyzed by
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is the difference between the heat capacities of the liquid and solid phases at
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Dissolved solutes prevent sap and other fluids in trees from freezing in winter.
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In all cases, the substance added/present in smaller amounts is considered the
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Freezing point depression is responsible for keeping ice cream soft below 0°C.
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The freezing point of ethanol water mixture is shown in the following graph.
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Drop in freezing temperature of a solvent due to the addition of solute
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Petrucci, Ralph H.; Harwood, William S.; Herring, F. Geoffrey (2002).
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value makes it easier to observe larger drops in the freezing point.)
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substance is added. Examples include adding salt into water (used in
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is the decrease in freezing point, defined as the freezing point
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since melting and freezing points both refer to the liquid-solid
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in the frog's liver and subsequent release of massive amounts of
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to aid in identifying substances and to ascertain their purity.
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Workers spreading salt from a salt truck for deicing the road
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is a drop in the maximum temperature at which a substance
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is the enthalpy change of fusion of the pure solvent at
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in cars), adding copper to molten silver (used to make
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List of boiling and freezing information of solvents
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List of boiling and freezing information of solvents
296:with the amount of solute dissolved. In this case, 137: 1724:(4th ed.). Freeman. p. C17 (Table 7.2). 1297: 760: 734: 704: 675: 614: 584: 557: 525: 489: 437: 253:of the solute. This kind of measurement is called 1626:BIOETYMOLOGY – Biomedical Terms of Greek Origin. 1490:(8th ed.). Prentice-Hall. pp. 557–558. 2372: 1356:The solvent activity can be calculated from the 1783:Industrial & Engineering Chemistry Research 1339:, which is 333.6 J/g for water at 273 K; Δ 60:, caused when a smaller amount of another, non- 1933: 1897: 1744: 2015: 1927: 1891: 1569:: initiation and subsequent suppression 6353" 565:of the pure solvent minus the freezing point 1962: 1769: 974: 676:{\displaystyle T_{f}=T_{f}^{0}-\Delta T_{f}} 103:. Freezing-point depression is what causes 2022: 2008: 1971:Journal of Chemical & Engineering Data 1936:Journal of Chemical & Engineering Data 1901:Journal of Chemical & Engineering Data 1865:Journal of Chemical & Engineering Data 1856: 1609:, 2005, Thomson Brooks/Cole, Belmont, CA, 1607:Animal Physiology: From Genes to Organisms 1375: 1795: 1454: 746:(moles of solute per kilogram of solvent) 1565:"The freeze-avoidance response of smelt 382: 196: 188: 115: 44: 36: 780:Some values of the cryoscopic constant 14: 2373: 2029: 1968: 1818: 1775: 1719: 1687:: CS1 maint: archived copy as title ( 378: 2003: 1639: 490:{\displaystyle \Delta T_{f}=K_{f}bi} 1703:"Freezing Point Depression of Milk" 1573:The Journal of Experimental Biology 1529: 1510: 1353:, which is 2.11 J/(g·K) for water. 24: 1367: 1235: 1191: 1141: 1080: 1009: 990: 660: 599: 510: 455: 409: 356:(albeit in different directions). 320: 25: 2402: 1776:Ge, Xinlei; Wang, Xidong (2009). 1504: 391:If the solution is treated as an 327:differential scanning calorimetry 1705:. Dairy UK. 2014. Archived from 1530:Ray, C. Claiborne (2002-02-05). 138:Due to concentration and entropy 1812: 1738: 1713: 1695: 336:may be used to investigate the 1650: 1633: 1620: 1599: 1556: 1523: 1479: 1435: 1167: 1138: 110: 13: 1: 1822:Journal of Solution Chemistry 1429: 2310:Inorganic nonaqueous solvent 1630:. bioetymology.blogspot.com. 615:{\displaystyle \Delta T_{f}} 526:{\displaystyle \Delta T_{f}} 303:Practical Organic Chemistry 7: 1646:. London: MacMillan and Co. 1643:Practical Organic Chemistry 1447:Food Science and Technology 1382: 315:Beckmann freezing apparatus 10: 2407: 2295:Acid dissociation constant 428:Moles of dissolved species 373: 29: 2278: 2210: 2140: 2037: 1834:10.1007/s10953-009-9433-0 1640:Cohen, Julius B. (1910). 975:For concentrated solution 558:{\displaystyle T_{f}^{0}} 282:and then comparing it to 54:Freezing-point depression 18:Freezing point depression 1754:SI Chemical Data 5th ed. 1389:Melting-point depression 2260:Solubility table (data) 2127:Apparent molar property 1585:10.1242/jeb.205.10.1419 1394:Boiling-point elevation 1308:In the above equation, 787:for selected solvents: 350:melting-point apparatus 149: 101:boiling-point elevation 2225:Total dissolved solids 2220:Solubility equilibrium 2145:and related quantities 1720:Atkins, P. W. (1990). 1399:Colligative properties 1299: 762: 736: 706: 677: 616: 586: 559: 527: 491: 439: 388: 365:ebullioscopic constant 313:is determined using a 305:of 1910, in which the 202: 194: 127:colligative properties 50: 42: 2325:Partition coefficient 2305:Polar aprotic solvent 1456:10.1002/fsat.3510_3.x 1300: 763: 737: 707: 705:{\displaystyle K_{f}} 678: 617: 587: 585:{\displaystyle T_{f}} 560: 528: 492: 440: 386: 301:procedure in Cohen's 275:by first determining 200: 192: 116:Using vapour pressure 48: 40: 2240:Enthalpy of solution 2167:Volume concentration 2162:Number concentration 1605:L. Sherwood et al., 1579:(Pt 10): 1419–1427. 987: 870:Carbon tetrachloride 752: 726: 689: 626: 596: 569: 537: 507: 452: 406: 2386:Chemical properties 2381:Amount of substance 2152:Molar concentration 2122:Dilution (equation) 1517:Scientific American 1252: 1215: 1165: 1112: 1097: 1033: 796:Freezing point (°C) 714:cryoscopic constant 656: 554: 379:For dilute solution 363:is larger than the 361:cryoscopic constant 342:cryoscopic constant 332:In the laboratory, 235:Pseudacris crucifer 2192:Isotopic abundance 2157:Mass concentration 2031:Chemical solutions 1722:Physical Chemistry 1617:, p. 691–692. 1536:The New York Times 1414:Frigorific mixture 1295: 1238: 1194: 1144: 1098: 1083: 1012: 770:van 't Hoff factor 758: 732: 702: 673: 642: 612: 582: 555: 540: 523: 487: 435: 389: 270:van 't Hoff factor 203: 195: 186:are used instead. 168:magnesium chloride 93:chemical potential 51: 43: 2391:Phase transitions 2368: 2367: 1983:10.1021/je800483q 1948:10.1021/je700446q 1913:10.1021/je7006499 1877:10.1021/je060451k 1797:10.1021/ie900434h 1488:General Chemistry 1290: 1281: 1257: 1250: 1227: 1224: 1213: 1206: 1176: 1163: 1156: 1132: 1105: 1095: 1069: 1050: 1031: 1024: 1000: 972: 971: 761:{\displaystyle i} 735:{\displaystyle b} 433: 432: 429: 184:potassium acetate 176:potassium formate 132:organic chemistry 16:(Redirected from 2398: 2265:Solubility chart 2092:Phase separation 2052:Aqueous solution 2024: 2017: 2010: 2001: 2000: 1995: 1994: 1966: 1960: 1959: 1931: 1925: 1924: 1895: 1889: 1888: 1860: 1854: 1853: 1828:(9): 1097–1117. 1816: 1810: 1809: 1799: 1773: 1767: 1766: 1750:Findlay, Tristan 1742: 1736: 1735: 1717: 1711: 1710: 1699: 1693: 1692: 1686: 1678: 1676: 1675: 1669: 1663:. Archived from 1662: 1654: 1648: 1647: 1637: 1631: 1624: 1618: 1603: 1597: 1596: 1560: 1554: 1553: 1551: 1550: 1527: 1521: 1520: 1511:Pollock, Julie. 1508: 1502: 1501: 1483: 1477: 1476: 1458: 1439: 1379: 1304: 1302: 1301: 1296: 1291: 1289: 1288: 1284: 1283: 1282: 1279: 1258: 1253: 1251: 1248: 1246: 1233: 1228: 1226: 1225: 1222: 1216: 1214: 1211: 1209: 1208: 1207: 1204: 1189: 1178: 1177: 1175: 1174: 1164: 1161: 1159: 1158: 1157: 1154: 1134: 1133: 1130: 1111: 1106: 1103: 1096: 1093: 1091: 1076: 1071: 1070: 1067: 1052: 1051: 1048: 1032: 1029: 1027: 1026: 1025: 1022: 1007: 1002: 1001: 998: 857:Carbon disulfide 790: 789: 767: 765: 764: 759: 741: 739: 738: 733: 711: 709: 708: 703: 701: 700: 682: 680: 679: 674: 672: 671: 655: 650: 638: 637: 621: 619: 618: 613: 611: 610: 591: 589: 588: 583: 581: 580: 564: 562: 561: 556: 553: 548: 532: 530: 529: 524: 522: 521: 496: 494: 493: 488: 480: 479: 467: 466: 444: 442: 441: 436: 434: 430: 427: 426: 421: 420: 354:phase transition 164:calcium chloride 66:ice cream makers 21: 2406: 2405: 2401: 2400: 2399: 2397: 2396: 2395: 2371: 2370: 2369: 2364: 2274: 2235:Solvation shell 2206: 2144: 2136: 2132:Miscibility gap 2117:Serial dilution 2112:Supersaturation 2062:Buffer solution 2033: 2028: 1998: 1967: 1963: 1932: 1928: 1896: 1892: 1861: 1857: 1817: 1813: 1774: 1770: 1764: 1746:Aylward, Gordon 1743: 1739: 1732: 1718: 1714: 1701: 1700: 1696: 1680: 1679: 1673: 1671: 1667: 1660: 1658:"Archived copy" 1656: 1655: 1651: 1638: 1634: 1625: 1621: 1604: 1600: 1561: 1557: 1548: 1546: 1528: 1524: 1509: 1505: 1498: 1484: 1480: 1441: 1440: 1436: 1432: 1385: 1370: 1368:Ethanol example 1352: 1345: 1338: 1331: 1330: 1321: 1314: 1278: 1274: 1247: 1242: 1234: 1232: 1221: 1217: 1210: 1203: 1199: 1198: 1190: 1188: 1187: 1183: 1179: 1170: 1166: 1160: 1153: 1149: 1148: 1129: 1125: 1107: 1102: 1092: 1087: 1075: 1066: 1062: 1047: 1043: 1028: 1021: 1017: 1016: 1008: 1006: 997: 993: 988: 985: 984: 977: 804: 786: 775: 753: 750: 749: 727: 724: 723: 696: 692: 690: 687: 686: 667: 663: 651: 646: 633: 629: 627: 624: 623: 606: 602: 597: 594: 593: 576: 572: 570: 567: 566: 549: 544: 538: 535: 534: 517: 513: 508: 505: 504: 475: 471: 462: 458: 453: 450: 449: 431:Mass of solvent 425: 416: 412: 407: 404: 403: 381: 376: 323: 321:Laboratory uses 295: 288: 281: 160:sodium chloride 156:ethylene glycol 152: 140: 122:vapor pressures 118: 113: 35: 28: 23: 22: 15: 12: 11: 5: 2404: 2394: 2393: 2388: 2383: 2366: 2365: 2363: 2362: 2357: 2352: 2347: 2342: 2337: 2332: 2327: 2322: 2317: 2312: 2307: 2302: 2300:Protic solvent 2297: 2292: 2284: 2282: 2276: 2275: 2273: 2272: 2267: 2262: 2257: 2252: 2247: 2245:Lattice energy 2242: 2237: 2232: 2227: 2222: 2216: 2214: 2208: 2207: 2205: 2204: 2199: 2194: 2189: 2184: 2179: 2174: 2169: 2164: 2159: 2154: 2148: 2146: 2138: 2137: 2135: 2134: 2129: 2124: 2119: 2114: 2109: 2104: 2099: 2097:Eutectic point 2094: 2089: 2084: 2079: 2074: 2069: 2064: 2059: 2057:Solid solution 2054: 2049: 2047:Ideal solution 2043: 2041: 2035: 2034: 2027: 2026: 2019: 2012: 2004: 1997: 1996: 1977:(2): 179–186. 1961: 1942:(1): 149–159. 1926: 1907:(4): 950–958. 1890: 1871:(2): 538–547. 1855: 1811: 1768: 1762: 1737: 1731:978-0716720737 1730: 1712: 1709:on 2014-02-23. 1694: 1649: 1632: 1619: 1598: 1567:Osmerus mordax 1555: 1522: 1503: 1496: 1478: 1449:. 2021-03-18. 1433: 1431: 1428: 1427: 1426: 1421: 1416: 1411: 1409:Eutectic point 1406: 1401: 1396: 1391: 1384: 1381: 1369: 1366: 1350: 1343: 1336: 1328: 1326: 1319: 1312: 1306: 1305: 1294: 1287: 1277: 1273: 1270: 1267: 1264: 1261: 1256: 1245: 1241: 1237: 1231: 1220: 1202: 1197: 1193: 1186: 1182: 1173: 1169: 1152: 1147: 1143: 1140: 1137: 1128: 1124: 1121: 1118: 1115: 1110: 1101: 1090: 1086: 1082: 1079: 1074: 1065: 1061: 1058: 1055: 1046: 1042: 1039: 1036: 1020: 1015: 1011: 1005: 996: 992: 976: 973: 970: 969: 966: 963: 957: 956: 953: 950: 944: 943: 940: 937: 931: 930: 927: 924: 918: 917: 914: 911: 905: 904: 901: 898: 892: 891: 888: 885: 879: 878: 875: 872: 866: 865: 862: 859: 853: 852: 849: 846: 840: 839: 836: 833: 827: 826: 823: 820: 814: 813: 802: 797: 794: 784: 778: 777: 773: 757: 747: 731: 721: 699: 695: 684: 670: 666: 662: 659: 654: 649: 645: 641: 636: 632: 609: 605: 601: 579: 575: 552: 547: 543: 520: 516: 512: 498: 497: 486: 483: 478: 474: 470: 465: 461: 457: 446: 445: 424: 419: 415: 411: 393:ideal solution 380: 377: 375: 372: 322: 319: 293: 286: 279: 180:sodium acetate 172:sodium formate 151: 148: 139: 136: 117: 114: 112: 109: 70:de-icing roads 26: 9: 6: 4: 3: 2: 2403: 2392: 2389: 2387: 2384: 2382: 2379: 2378: 2376: 2361: 2358: 2356: 2353: 2351: 2348: 2346: 2343: 2341: 2338: 2336: 2333: 2331: 2328: 2326: 2323: 2321: 2318: 2316: 2313: 2311: 2308: 2306: 2303: 2301: 2298: 2296: 2293: 2290: 2286: 2285: 2283: 2281: 2277: 2271: 2268: 2266: 2263: 2261: 2258: 2256: 2253: 2251: 2248: 2246: 2243: 2241: 2238: 2236: 2233: 2231: 2228: 2226: 2223: 2221: 2218: 2217: 2215: 2213: 2209: 2203: 2200: 2198: 2195: 2193: 2190: 2188: 2187:Mass fraction 2185: 2183: 2182:Mole fraction 2180: 2178: 2175: 2173: 2170: 2168: 2165: 2163: 2160: 2158: 2155: 2153: 2150: 2149: 2147: 2143: 2142:Concentration 2139: 2133: 2130: 2128: 2125: 2123: 2120: 2118: 2115: 2113: 2110: 2108: 2105: 2103: 2100: 2098: 2095: 2093: 2090: 2088: 2087:Phase diagram 2085: 2083: 2080: 2078: 2075: 2073: 2070: 2068: 2067:Flory–Huggins 2065: 2063: 2060: 2058: 2055: 2053: 2050: 2048: 2045: 2044: 2042: 2040: 2036: 2032: 2025: 2020: 2018: 2013: 2011: 2006: 2005: 2002: 1992: 1988: 1984: 1980: 1976: 1972: 1965: 1957: 1953: 1949: 1945: 1941: 1937: 1930: 1922: 1918: 1914: 1910: 1906: 1902: 1894: 1886: 1882: 1878: 1874: 1870: 1866: 1859: 1851: 1847: 1843: 1839: 1835: 1831: 1827: 1823: 1815: 1807: 1803: 1798: 1793: 1789: 1785: 1784: 1779: 1772: 1765: 1763:0-470-80044-5 1759: 1755: 1751: 1747: 1741: 1733: 1727: 1723: 1716: 1708: 1704: 1698: 1690: 1684: 1670:on 2020-08-03 1666: 1659: 1653: 1645: 1644: 1636: 1629: 1623: 1616: 1615:0-534-55404-0 1612: 1608: 1602: 1594: 1590: 1586: 1582: 1578: 1574: 1570: 1568: 1559: 1545: 1541: 1537: 1533: 1526: 1518: 1514: 1507: 1499: 1497:0-13-014329-4 1493: 1489: 1482: 1474: 1470: 1466: 1462: 1457: 1452: 1448: 1444: 1438: 1434: 1425: 1422: 1420: 1417: 1415: 1412: 1410: 1407: 1405: 1402: 1400: 1397: 1395: 1392: 1390: 1387: 1386: 1380: 1378: 1373: 1365: 1363: 1359: 1354: 1349: 1342: 1335: 1325: 1318: 1311: 1292: 1285: 1275: 1271: 1268: 1265: 1262: 1259: 1254: 1243: 1239: 1229: 1218: 1200: 1195: 1184: 1180: 1171: 1150: 1145: 1135: 1126: 1122: 1119: 1116: 1113: 1108: 1099: 1088: 1084: 1077: 1072: 1063: 1059: 1056: 1053: 1044: 1040: 1037: 1034: 1018: 1013: 1003: 994: 983: 982: 981: 967: 964: 962: 959: 958: 954: 951: 949: 946: 945: 941: 938: 936: 933: 932: 928: 925: 923: 920: 919: 915: 912: 910: 907: 906: 902: 899: 897: 894: 893: 889: 886: 884: 881: 880: 876: 873: 871: 868: 867: 863: 860: 858: 855: 854: 850: 847: 845: 842: 841: 837: 834: 832: 829: 828: 824: 821: 819: 816: 815: 812: 808: 801: 798: 795: 792: 791: 788: 783: 771: 755: 748: 745: 729: 722: 719: 715: 697: 693: 685: 668: 664: 657: 652: 647: 643: 639: 634: 630: 607: 603: 577: 573: 550: 545: 541: 518: 514: 503: 502: 501: 484: 481: 476: 472: 468: 463: 459: 448: 447: 422: 417: 413: 402: 401: 400: 398: 394: 385: 371: 368: 366: 362: 357: 355: 351: 346: 343: 339: 335: 330: 328: 318: 316: 312: 308: 304: 299: 292: 285: 278: 274: 271: 267: 263: 260: 256: 252: 248: 244: 240: 236: 232: 231:spring peeper 228: 227:rainbow smelt 224: 220: 216: 212: 208: 199: 191: 187: 185: 181: 177: 173: 169: 165: 161: 157: 147: 144: 135: 133: 128: 123: 108: 106: 102: 98: 97:mole fraction 94: 90: 86: 81: 79: 75: 71: 67: 63: 59: 55: 47: 39: 33: 19: 2250:Raoult's law 2202:Ternary plot 2197:Mixing ratio 1974: 1970: 1964: 1939: 1935: 1929: 1904: 1900: 1893: 1868: 1864: 1858: 1825: 1821: 1814: 1790:(10): 5123. 1787: 1781: 1771: 1753: 1740: 1721: 1715: 1707:the original 1697: 1672:. Retrieved 1665:the original 1652: 1642: 1635: 1622: 1606: 1601: 1576: 1572: 1566: 1558: 1547:. Retrieved 1535: 1525: 1516: 1506: 1487: 1481: 1446: 1437: 1424:Snow removal 1374: 1371: 1360:or modified 1358:Pitzer model 1355: 1347: 1340: 1333: 1323: 1316: 1309: 1307: 978: 799: 781: 779: 717: 499: 390: 369: 358: 347: 331: 324: 314: 302: 297: 290: 283: 276: 272: 265: 261: 254: 247:dissociation 234: 225:such as the 204: 153: 145: 141: 119: 82: 53: 52: 32:supercooling 2355:Lyonium ion 2270:Miscibility 2255:Henry's law 1532:"Q & A" 935:Naphthalene 922:Ethyl ether 896:Cyclohexane 818:Acetic acid 334:lauric acid 311:naphthalene 111:Explanation 2375:Categories 2350:Amphiphile 2345:Lipophilic 2340:Hydrophile 2335:Hydrophobe 2212:Solubility 2107:Saturation 2077:Suspension 1674:2019-07-08 1549:2022-02-10 1430:References 1362:TCPC model 883:Chloroform 399:'s Law"). 338:molar mass 307:molar mass 251:molar mass 74:antifreeze 2360:Lyate ion 2315:Solvation 2230:Solvation 2172:Normality 1991:0021-9568 1956:0021-9568 1921:0021-9568 1885:0021-9568 1842:0095-9782 1806:0888-5885 1628:cryoscopy 1544:0362-4331 1473:243583017 1465:1475-3324 1272:⁡ 1266:⋅ 1260:− 1236:Δ 1192:Δ 1142:Δ 1123:⁡ 1117:⋅ 1081:Δ 1073:− 1060:⁡ 1054:⋅ 1035:− 1010:Δ 991:Δ 661:Δ 658:− 600:Δ 511:Δ 456:Δ 423:∝ 410:Δ 255:cryoscopy 105:sea water 2330:Polarity 2289:Category 2177:Molality 2039:Solution 1850:96186176 1752:(2002), 1683:cite web 1593:11976353 1383:See also 793:Compound 744:molality 264:= cold, 239:glycogen 221:-living 215:glycerol 211:sorbitol 68:and for 62:volatile 2280:Solvent 2082:Colloid 2072:Mixture 1404:Deicing 909:Ethanol 844:Camphor 831:Benzene 768:is the 742:is the 500:where: 397:Blagden 374:Formula 249:or the 243:glucose 207:evolved 89:solvent 58:freezes 1989:  1954:  1919:  1883:  1848:  1840:  1804:  1760:  1728:  1613:  1591:  1542:  1494:  1471:  1463:  948:Phenol 926:−116.2 913:−114.6 712:, the 287:solute 266:scopos 233:frog ( 219:arctic 182:, and 85:solute 78:solder 2102:Alloy 1846:S2CID 1668:(PDF) 1661:(PDF) 1469:S2CID 968:1.86 961:Water 955:7.27 929:1.79 916:1.99 903:20.2 890:4.68 887:−63.5 851:39.7 848:179.8 838:5.12 825:3.90 259:Greek 1987:ISSN 1952:ISSN 1917:ISSN 1881:ISSN 1838:ISSN 1802:ISSN 1758:ISBN 1726:ISBN 1689:link 1611:ISBN 1589:PMID 1540:ISSN 1492:ISBN 1461:ISSN 942:6.9 939:80.2 864:3.8 861:−112 822:16.6 809:⋅kg/ 262:cryo 223:fish 213:and 150:Uses 1979:doi 1944:doi 1909:doi 1873:doi 1830:doi 1792:doi 1581:doi 1577:205 1451:doi 1320:liq 1280:liq 1249:fus 1212:fus 1162:fus 1131:liq 1094:fus 1068:liq 1030:fus 900:6.4 877:30 874:−23 835:5.5 811:mol 805:in 309:of 2377:: 1985:. 1975:54 1973:. 1950:. 1940:53 1938:. 1915:. 1905:53 1903:. 1879:. 1869:52 1867:. 1844:. 1836:. 1826:38 1824:. 1800:. 1788:48 1786:. 1780:. 1748:; 1685:}} 1681:{{ 1587:. 1575:. 1571:. 1538:. 1534:. 1515:. 1467:. 1459:. 1445:. 1269:ln 1120:ln 1057:ln 952:41 776:). 317:. 178:, 174:, 166:, 2291:) 2287:( 2023:e 2016:t 2009:v 1993:. 1981:: 1958:. 1946:: 1923:. 1911:: 1887:. 1875:: 1852:. 1832:: 1808:. 1794:: 1734:. 1691:) 1677:. 1595:. 1583:: 1552:. 1519:. 1500:. 1475:. 1453:: 1351:F 1348:T 1344:p 1341:C 1337:F 1334:T 1329:F 1327:T 1324:H 1317:a 1313:F 1310:T 1293:. 1286:) 1276:a 1263:R 1255:2 1244:p 1240:C 1230:+ 1223:F 1219:T 1205:F 1201:T 1196:H 1185:( 1181:2 1172:2 1168:) 1155:F 1151:T 1146:H 1139:( 1136:+ 1127:a 1114:R 1109:2 1104:F 1100:T 1089:p 1085:C 1078:2 1064:a 1049:F 1045:T 1041:R 1038:2 1023:F 1019:T 1014:H 1004:= 999:F 995:T 965:0 807:K 803:f 800:K 785:f 782:K 774:2 756:i 730:b 718:k 698:f 694:K 683:. 669:f 665:T 653:0 648:f 644:T 640:= 635:f 631:T 608:f 604:T 578:f 574:T 551:0 546:f 542:T 519:f 515:T 485:i 482:b 477:f 473:K 469:= 464:f 460:T 418:f 414:T 298:i 294:B 291:m 284:m 280:B 277:m 273:i 257:( 34:. 20:)

Index

Freezing point depression
supercooling


freezes
volatile
ice cream makers
de-icing roads
antifreeze
solder
solute
solvent
chemical potential
mole fraction
boiling-point elevation
sea water
vapor pressures
colligative properties
organic chemistry
ethylene glycol
sodium chloride
calcium chloride
magnesium chloride
sodium formate
potassium formate
sodium acetate
potassium acetate


evolved

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