Tables 261-262. 

 TABLE 261, — Heat of Combustion of Some Carbon Compounds. 



241 



Compound. 



Paraffins: 



Methane, g 



Ethane, g 



Propane, g , 



i-Butane, g 



n-Hexane, 1 



n-Heptane, 1 



n-Octane, 1 



Dekane, 1 



defines: 



Ethylene, g 



Propylene, g 



i-Butylene, g 



Amylene, 1 



Hexylene, 1 



Acetylene, g 



Trimethylene, g . . . . 



Benzene, 1 



Benzene, g 



Naphthalene, 1 



Toluene, 1 



Chloroform, v 



Carbon disulphide, 1 

 Methyl-chloride, g . 

 Ethyl-chloride, v . . . 



Compound. 



Alcohols: 



Methyl, 1 



Ethyl, I 



n-propyl, 1 



n-butyl, 1 



Amyl, 1 



Ethers: 



Dimethyl, g 



Diethyl, v 



Ethyl-methyl, v. . . 

 Acids: 



Formic, 1 > 



Acetic, 1 



Propionic, 1 



n-butyric, 1 , 



Lactic, 1 



Cellulose, s. . . 

 Dextrine, s. . . 

 Glycerine, 1 . . , 



Phenol, 1 



Sugar, cane, s . 



Starch, s 



Thymol, 1. . . . 

 Urea, 1 



31P 



lop 

 oop 

 6S» 

 96P 



60P 



92p 

 43P 



3S7V 



49" 



961) 



95* 



6611 



fBv 



32 



81 



QSB 



23 



02^ 



S3 



V, p, following the heats of combustion, signify at constant volume and pressure respectively. When re- 

 ferred to constant pressure, the values are 0.58 Kg-cal. greater (at about 18° C) for each condensed gaseous 

 molecule. The values are means from various observers. The combustion products are gaseous COj, liquid 

 water, etc. 



TABLE 262. — Heat of Combustion — Miscellaneous. 



Substance. 



Asphalt 



Butter 



Carbon: amorphous. 



charcoal .... 



diamond . . . 



graphite 



Copper (to CuO) 



Dynamite, 75% 



Egg, white of 



Egg, yolk of 



Fats, animal 



Hemoglobin 



Hy.irogen 



Iror. (to Fe203) 



Magnesium (to MgO) 



Oils: cotton-seed 



lard 



olive 



Substance. 



Oils: petroleum: 



crude 



light 



heavy 



rape 



sperm 



Paraffin (to CO2, H2O 1) . 

 Paraffin (to CO2, H20g). 



Pitch 



Sulphur, rhombic 



Sulphur, monoclinic 



Tallow 



Woods: beech, 13% H2O 

 birch, i27o H2O. 

 oak, 13% H2O.. 

 pine, 12% H2O. 



Small 



calories 



perg 



substance. 



11500 



lOOOO 



10200 

 9500 



1 0000 

 HI40 

 10340 

 8400 



2200 

 2240 



9SOO 



4170 



4210 



3990 

 4420 



References: (i) Slossen, Colburn; (2) Mean; (3) Berthellot; (4) Rous, Sarran; (5) Thomsen; (6) Stoh- 



nn; ^7^ flihsnn- C8^ nntflioh 



mann; (7) Gibson; (8) Gottlieb 



THsoNiAN Tables 



