154 METHODS OF ANALYSIS 



test should be conducted with each new lot of reagents employed in the reduction, 

 using 150 cc. of water, 1 cc. of 10% barium chlorid solution, 2 cc. of 10% hydrochloric 

 acid, 10 cc. of the sodium acetate, and 25 cc. of the mercuric chlorid reagent, heat- 

 ing the mixture in a boiling water bath or steam bath for 2 hours. The weight of 

 mercurous chlorid obtained in this blank test must be deducted from that obtained 

 in the regular determination. 



BIBLIOGRAPHY. 



1 J. Ind. Eng. Chem., 1910, 2: 24. 



2 Z. Nahr. Genussm., 1910, 19: 137; C. A., 1910, 4: 1523. 



3 U. S. Div. Chem. Bull. 51, p. 113. 



* Sutton. Volumetric Analysis. 10th ed., 1911, p. 95. 

 6 Z. Nahr. Genussm., 1902, 5: 353. 



6 Analyst, 1895, 20: 155. 



7 Ann. di farmacoterapia e chim., 1898, 27: 97; Chem. Zentr., 1898, (1), 1152; 1902, 

 (1), 1076; J. Soc. Chem. Ind., 1898, 17: 697; Chem. Ztg., 1902, 26: 246; Abs. J. Chem. 

 Soc, 1902, 82: 367. 



* Service de Surveillance des Aliments en Belgique, through Bui. soc. chim. belg., 

 1897-8, 11-12: 211; Abs. Analyst, 1897, 22: 282. 



9 Chem. News, 1905, 91: 39; Ann. Rept. Mass. State Board of Health, 1905, p. 498 



i«Mon. Sci., 1895, (4), 9: 324. 



" U. S. Div. Chem. Bull. 13, (8), p. 1032. 



12 Mon. Sci., 1893, (4), 7: 842. 



'3 Compt. rend., 1893, 117: 796. 



'* Z. anal. Chem., 1896, 35: 104 



" Ibid., 628. 



'« Biochem. Z., 1913, 51: 253. 



