MABERY AND HUDSON. — AMERICAN PETROLEUM. 105 



duct. Witli care we were able to complete the absortiou of sufficient 

 chloriue without any considerable loss, lu subjecting the chlorine 

 product to fractional separation, after the fifth distillation it began to 

 collect between 65° and 70°, and after .the twentieth, 80 per cent col- 

 lected at 68°-69°. Of the remainder, 40 grams below 60° proved to 

 consist mainly of unchanged hydrocarbon with sufficient chlorine product 

 to raise the boiling point. Distillation of the higher portions was con- 

 tinued in 1° fractions to 160°, beyond which very Utile remained. To 

 prevent a slight decomposition above 150°, at first distillation was con- 

 ducted in vacuo ; but the boiling points soon fell below the point of decom- 

 position. In this entire series of 1° distillates, only at 120°-121° did 

 any appreciable quantity collect, and here only to the extent of 2 to 3 

 grams. The portions collected at other points were doubtless mixtures 

 in very small amounts of higlier chlorine products. The liquid 68°-69° 

 was shown by analysis and vapor density to have the composition required 

 for monochlorbutane. 



I. 0.1288 gram of the oil gave 0.2440 gram COo, and 0.1166 gram HoO. 

 II. 0.2025 gram of the oil gave 0.3845 gram CO.2, and 0.1778 gram HoO. 



III. 0.2537 gram of the oil gave by the Carius method 0.3950 gram 



AgCl. 



IV. 0.2645 gram of the oil gave 0.4078 gram AgCl. 



Calculated for Found. 



CiHaCl. I. II. III. IV. 



C 51.89 51.65 51.77 



H 9.73 10.06 9.76 



CI 38.38 38.50 38.13 



In a determination of its specific gravity at 24°, this butyl chloride 

 gave 0.8690 ; at 27°. 8, another determination gave 0.8648. The latter 

 value agrees closely with that of Perin and Puchot,* who found at 27°. 8, 

 0.8650. 



In determining its vapor density by the method of Hofmann, 0.0975 

 gram of the oil gave 65 c.c. of vapor at 100° and under a tension of 

 36.44 mm. 



Calculated for C^HsCl. Found. 



3.20 3.30 



In further evidence of its identity, this butyl chloride was converted 

 into the acetate by heating it twenty-four hours to 140° with fused 



* Ann. Chem. and Pharm., CXXXVI. 1276. 



