Preparation of Hydrazinium sulfate. 
 
2 NH  + NaOCl + H SO  ---> N H	* H SO	+ NaCl + H O 
    3		 2  4	    2 4    2  4 	  2 
 
One-hundred-forty-one ml of Chlorox bleach (5.25 percent NaOCl) was added 
to 200 ml of 20 percent ammonium hydroxide and 5 ml of 1 percent limewater 
Ca(OH)2 in one liter Erlenmeyer flask. The mixture was rapidly heated to 
boiling and maintained until the volume was reduced to about half, which 
required about one-half hour. The solution was rapidly cooled and dilute 
sulfuric acid was added until a pH of 7-8 has attained and the precipitate 
that formed was separated by filtration. The cold filtrate was strongly 
acidified with 40 percent sulfuric acid. The white precipitate was 
filtered, washed with methanol and air dried. Melting point 254 degrees C 
(lit. 254 degrees C).