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2-454 PHYSICAL AND CHEMICAL DATA TABLE 2-324 Diffusivities of Pairs of Gases an

2-454 PHYSICAL AND CHEMICAL DATA TABLE 2-324 Diffusivities of Pairs of Gases and Vapors (1 atm) Dv in cm2/s Substance Temp., °C Air A H2 O2 N2 CO2 N2O CH4 C2H6 C2H4 n-C4H10 i-C4H10 Ref. Acetic acid 0 0.1064 0.416 0.0716 8 Acetone 0 .109 .361 6, 16 n-Amyl alcohol 0 .0589 .235 .0422 8 sec-Amyl alcohol 30 .072 5 Amyl butyrate 0 .040 8 Amyl formate 0 .0543 8 i-Amyl formate 0 .058 8 Amyl isobutyrate 0 .0419 .171 8 Amyl propionate 0 .046 .1914 .0347 8 Aniline 0 .0610 8 30 .075 5 Anthracene 0 .0421 8 Argon 20 0.194 18 Benzene 0 .077 .306 0.0797 .0528 8, 15 Benzidine 0 .0298 8 Benzyl chloride 0 .066 8 n-Butyl acetate 0 .058 8 i-Butyl acetate 0 .0612 .2364 .0425 8 n-Butyl alcohol 0 .0703 .2716 .0476 8 30 .088 5 i-Butyl alcohol 0 .0727 .2771 .0483 8 Butyl amine 0 .0821 8 i-Butyl amine 0 .0853 8 i-Butyl butyrate 0 .0468 .185 .0327 8 i-Butyl formate 0 .0705 8 i-Butyl isobutyrate 0 .0457 .191 .0364 8 i-Butyl proprionate 0 .0529 .203 .0366 8 i-Butyl valerate 0 .0424 .173 .0308 8 Butyric acid 0 .067 .264 .0476 8 i-Butyric acid 0 .0679 .271 .0471 8 Cadmium 0 .17 13 Caproic acid 0 .050 8 i-Caproic acid 0 .0513 8 Carbon dioxide 0 .138 .550 .139 0.096 0.153 8 20 .163 19 25 .0996* .00215† 1, 9 500‡ .9 18 Carbon disulfide 0 .0892 .369 .063 8 Carbon monoxide 0 .651 .185 .137 0.116 8 450‡ 1.0 18 Carbon tetrachloride 0 .293 0.0636 16, 17 Chlorobenzene 30 .075 5 Chloroform 0 .091 6 Chloropicrin 25 .088 10 m-Chlorotoluene 0 .054 8 o-Chlorotoluene 0 .059 8 p-Chlorotoluene 0 .051 8 Cyanogen chloride 0 .111 10 Cyclohexane 15 0.0719 .319 .0744 .0760 3 45 .086 6 n-Decane 90 .306 .0841 3 Diethylamine 0 .0884 8 2,3-Dimethyl butane 15 .0657 .301 .0753 .0751 3 Diphenyl 0 .0610 8 n-Dodecane 126 .308 .0813 3 Ethane 0 .459 8 Ethanol 0 .377 .0686 20 Ether (diethyl) 0 .0778 .298 .0546 7, 8 Ethyl acetate 0 .0715 .273 .0487 8 30 .089 5 Ethyl alcohol 0 .102 .375 .0685 8 Ethyl benzene 0 .0658 8 Ethyl n-butyrate 0 .0579 .224 .0407 8 Ethyl i-butyrate 0 .0591 .229 .0413 8 Ethylene 0 .486 8 Ethyl formate 0 .0840 .337 .0573 8 Ethyl propionate 0 .068 .236 .0450 4, 8 Ethyl valerate 0 .0512 .205 .0367 8 Eugenol 0 .0377 8 Formic acid 0 .1308 .510 .0874 8 Helium 0 .641 8 20 .705 19 n-Heptane 38 .066§ n-Hexane 15 .0663 .290 .0753 .0757 3 Hexyl alcohol 0 .0499 .200 .0351 8 Hydrogen 0 .611 .697 .674 .550 .535 .625 0.459 0.486 0.272 0.277 8 25 .646 .537 .726 2 500 4.2 18 TRANSPORT PROPERTIES 2-455 TABLE 2-324 Diffusivities of Pairs of Gases and Vapors (1 atm) (Concluded) Dv in cm2/s Substance Temp., °C Air A H2 O2 N2 CO2 N2O CH4 C2H6 C2H4 n-C4H10 i-C4H10 Ref. Hydrogen cyanide 0 0.173 10 Hydrogen peroxide 60 .188 11 Iodine 0 .07 0.070 8, 12, 14 Mercury 0 .112 0.53 .13 8, 12, 13 Mesitylene 0 .056 8 Methane 500 1.1 18 Methyl acetate 0 .084 .333 0.0567 8 Methyl alcohol 0 .132 .506 .0879 8 Methyl butyrate 0 .0633 .242 .0446 8 Methyl i-butyrate 0 .0639 .257 .0451 8 Methyl cyclopentane 15 0.0731 .318 0.0742 0.0758 3 Methyl formate 0 .0872 8 Methyl propionate 0 .0735 .295 .0528 8 Methyl valerate 0 0.0569 8 Naphthalene 0 .0513 8 Nitrogen 0 0.181 8 25 0.165 0.148 0.163 0.0960 0.0908 2 Nitrous oxide 0 0.535 .096 8 n-Octane 0 .0505 8 30 0.0642 .271 0.0705 0.0710 3 Oxygen 0 .178 .697 0.181 .139 8 Phosgene 0 .095 10 Propionic acid 0 .0829 .330 .0588 8 Propyl acetate 0 .067 8 n-Propyl alcohol 0 .085 .315 .0577 8 i-Propyl alcohol 0 .0818 8 30 .101 5 n-Propyl benzene 0 .0481 8 i-Propyl benzene 0 .0489 8 n-Propyl bromide 0 .085 8 i-Propyl bromide 0 .0902 8 Propyl butyrate 0 .0530 .206 .0364 8 Propyl formate 0 .0712 .281 .0490 8 n-Propyl iodide 0 .079 8 i-Propyl iodide 0 .0802 8 n-Propyl isobutyrate 0 .0549 .212 .0388 8 i-Propyl isobutyrate 0 .059 8 Propyl propionate 0 .057 .212 .0395 8 Propyl valerate 0 .0466 .189 .0341 8 Safrol 0 .0434 8 i-Safrol 0 .0455 8 Sulfur hexafluoride 25 .418 2 Toluene 0 .076 0.071 4, 8 30 .088 5 Trimethyl carbinol 0 .087 8 2,2,4-Trimethyl pentane 30 0.0618 .288 0.0688 0.0705 3 2,2,3-Trimethyl heptane 90 .270 0.0684 3 n-Valeric acid 0 0.050 8 i-Valeric acid 0 0.0544 .212 .0376 8 Water 0 0.220 .75 .138 8, 20 450 1.3 18 *320 mmHg. †40 atm. ‡Also at other temperatures. §Strong function of concentration. References 1Amdur, Irvine, Mason, and Ross, J. Chem. Phys., 20, 436 (1952). 2Boyd, Stein, Steingrimsson, and Rumpel, J. Chem. Phys., 19, 548 (1951). 3Cummings and Ubbelohde, J. Chem. Soc. (London), 1953, p. 3751. 4Fairbanks and Wilke, Ind. Eng. Chem., 42, 471 (1950). 5Gilliland, Ind. Eng. Chem., 26, 681 (1934). 6Gorynnova and Kuvskinskii, Zhur. Tekh. Fiz., 18, 1421 (1948). 7Hansen, Dissertation, Jena, 1907. 8International Critical Tables, vol. 5, p. 62. 9Jeffries and Drickamer, J. Chem. Phys., 22, 436 (1954). 10Klotz and Miller, J. Am. Chem. Soc., 69, 2557 (1947). 11McMurtrie and Keyes, J. Am. Chem. Soc., 70, 3755 (1948). 12Mullaly and Jacques, Phil. Mag., 48, 6, 1105 (1924). 13Spier, Physica, 6 (1939): 453; 7, 381 (1940). 14Topley and Whytlaw-Gray, Phil. Mag., 4, 873 (1927). 15Trautz and Ludwig, Ann. Physik, 5, 5, 887 (1930). 16Trautz and Muller, Ann. Physik, 22, 353 (1935). 17Trautz and Ries, Ann. Physik, 8, 163 (1931). 18Walker and Westenberg, J. Chem. Phys., 32, 136 (1960). 19Westenberg and Walker, J. Chem. Phys., 26, 1753 (1957). 20Winkelmann, Wied. Ann., 22, 152 (1884); 23, 203 (1884); 26, 105 (1885); 33, 445 (1888); 36, 92 (1889). 2-456 PHYSICAL AND CHEMICAL DATA In this table are a representative selection of diffusion coefficients. The subsection “Prediction and Correlation of Physical Properties” should be consulted for estimation techniques. As general references, the works by Hirschfelder, Curtiss, and Bird, Molecular Theory of Gases and Liquids, Wiley, New York, 1964; Chapman and Cowling, The Mathematical Theory of Non-Uniform Gases, Cambridge, New York, 1970; Reid and Sherwood, The Properties of Gases and Liquids, McGraw-Hill, New York, 1964; and Bretsznajder, Prediction of Trans- port and Other Physical Properties of Fluids, Pergamon, New York, 1971, may be found useful. The most exhaustive recent compilation for gases is by Mason and Marrero, J. Phys. Chem. Ref. Data, 1 (1972). Unfortunately, the Mason and Marrero work cites only equations and equation constants and not direct tabulations. For these, the Landolt- Börnstein series is suggested. TABLE 2-325 Diffusivities in Liquids (25 °C) Dilute solutions and 1 atm unless otherwise noted; use DLμ/T = constant to estimate effect of temperature; * indicates that reference gives effect of concentration. Estimated DL × 105, possible, Solute Solvent sq cm/sec error, %1 Ref. Acetal* Ethanol 1.25 5 11 Acetamide* Ethanol 0.68 5 11 Acetamide* Water 1.19 3 11 Acetic acid Acetone 3.31 4 Acetic acid Benzene 2.11 1, 4 Acetic acid Carbon tetrachloride 1.49 4 Acetic acid Ethylene glycol 0.13 4 Acetic acid Toluene 2.26 4 Acetic acid* Water 1.24 3 11 Acetonitrile Water 1.66 5 11 Acetylene Water 1.78, 2.11 1, 24 Allyl alcohol* Ethanol 1.06 5 11 Allyl alcohol Water 1.19 6 11 Ammonia* Water 1.7, 2.0, 2.3 1, 11 i-Amyl alcohol* Ethanol 0.87 5 11 i-Amyl alcohol Water 1.0 8 11, 25 Benzene Carbon tetrachloride 1.53 7 Benzene (50 mole %) n-Decane 1.72 26 Benzene (50 mole %) 2,4-Dimethyl pentane 2.49 26 Benzene (50 mole %) n-Dodecane 1.40 26 Benzene (50 mole %) n-Heptane 2.47 26 Benzene (50 mole %) n-Hexadecane 0.96 26 Benzene (50 mole %) n-Octadecane 0.86 26 Benzoic acid Acetone 2.62 4 Benzoic acid Benzene 1.38 4 Benzoic acid Carbon tetrachloride 0.91 4 Benzoic acid Ethylene glycol 0.043 4 Benzoic acid Toluene 1.49 4 Bromine Benzene 2.7 11 Bromine Carbon disulfide 4.1 11 Bromine Water 1.3 11 Bromobenzene Benzene 2.30 25 Bromoform* Acetone 2.90 11 Bromoform i-Amyl alcohol 0.53 11 Bromoform Ethanol 1.08 5 11 Bromoform* Ethyl ether 3.62 11 Bromoform Methanol 2.20 23 Bromoform n-Propanol 0.94 11 n-Butanol Water 0.96 5 1, 11, 18, 25 Caffeine Water 0.63 6 11 Carbon dioxide Ethanol 4.0 6 11 Carbon dioxide Water 1.96 1 1, 3, 5, 20, 24, 28 Carbon disulfide (50 mole %, 200 atm.) n-Butanol 3.57 14 Carbon disulfide (50 mole %, 200 atm.) i-Butanol 2.42 14 Carbon disulfide (50 mole %, 218 atm.) Chlorobenzene 3.00 14 Carbon disulfide (50 mole %, 200 atm.) 2,4-Dimethyl pentane 3.63 14 Carbon disulfide (50 mole %, 100 atm.) n-Heptane 3.0 14 Carbon disulfide (50 mole %, 50 atm.) Methyl cyclohexane 3.5 14 Carbon disulfide (50 mole %, 200 atm.) n-Octane 3.10 14 Carbon disulfide (50 mole %) Toluene 2.06 14 Carbon tetrachloride Benzene 2.04 3 7, 9 Carbon tetrachloride* Cyclohexane 1.49 2 9, uploads/Geographie/ diffusion-coefficient-perry.pdf