632 



TABLE 673.— HEAT OF SORPTION* 



(In small calories) 



Fuller's 



Substance earth 



Amylene 57.1 



Water 30.2 



Acetone 27.3 



Methyl alcohol 21.8 



Ethyl acetate 18.5 



Ethyl alcohol 17.2 



Aniline 13.4 



Amyl alcohol 10.9 



Ethyl ether 10.5 



Chloroform 8.4 



Benzene 4.6 



Carbon disulfide 4.6 



Carbon tetrachloride 4.2 



Hexane 3.9 



For reference, see footnote 214, p. 631. 



TABLE 674.— EFFECT OF ACTIVATION ON THE ADSORBING POWER 



OF CHARCOAL 215 



Adsorption 

 Substance tested mgCCl 4 /(gC) 



Ironwood 22 



Primary ironwood charcoal 30 



Activated ironwood charcoal 1160 



Commercial wood charcoal 11 



Highest activated wood charcoal* 1480 



Cocoanut shell 18 



Primary cocoanut charcoal 47 



Activated cocoanut charcoal 630 



Lignite semi-coke 30 



Good activated lignite charcoal 640 



Highest activated lignite charcoal* 2715 



215 Weiser, H. B., Colloid chemistry, 2d ed., John Wiley & Sons, Inc. 

 * Further activation reduces the granules to a fine powder. 



1949. Reprinted by permission. 



TABLE 675.— HEATS OF ADSORPTION OF VAPORS ON CHARCOAL* 



Integral heat 

 of adsorption, 

 h 

 Vapor cal/mole 



GH 6 C1 12330 



CS 2 12630 



CHsOH 12950 



GH,Br 14330 



GHJ 14250 



CHCU 14930 



HCOOGH5 15420 



GH 6 15170 



GH 5 OH 14980 



CC1« 16090 



(GH 5 ) 2 16090 



For reference, see footnote 215, above. 



SMITHSONIAN PHYSICAL TABLES 



