[3] D. R. P. 180,668; Frdl. 8, 27 (1907); J. Am. Chem. Soc. 42, 2096
(1920).

[4] D. R. P. 197,309; Frdl. 9, 34 (1908).

[1b] D. R. P. 197,308; Frdl. 9, 33 (1908).

[2b] D. R. P. Anm. 23,510; 16,579; Frdl. 9, 36 (1908).

[3b] D. R. P. 201,230; Frdl. 9, 35 (1908).



X

HYDRAZINE SULFATE

2 NH3 + NaOCl--> NH2NH2 + H2O + NaCl

Prepared by ROGER ADAMS and B. K. BROWN. Checked by J. B. CONANT
and W. L. HANAWAY.

1. Procedure

A NORMAL solution of sodium hypochlorite is prepared as follows:
in a 5-l. round-bottom flask are placed 1800 g. of sodium
hydroxide solution (300 g. of sodium hydroxide to 1500 g.
of water) and 1500 g. of ice. Chlorine gas is then passed into
the solution until it has gained in weight approximately 213 g.
During this addition, the solution must be kept thoroughly