Nomenclature
CAS number: 10034-93-2
Hydrazine sulfate (1:1); hydrazinium sulfate; hydrazonium sulfate; hydrazine dihydrogen sulfate (1:1).
H
6N
2O
4S; mol wt 130.12.
H 4.65%, N 21.53%, O 49.18%, S 24.64%.
H
2NNH
2.H
2SO
4.
Description and references
Prepd by Raschig synthesis: 2NH3.aq + [Ca(OCl)2/Na2CO3/colloid]
and treatment with H2SO4. Starch, glue, or
gelatin are used as colloids, and sodium hypochlorite may be used
instead of bleaching powder: Adams, Brown, Org. Synth. 2, 37 (1922); Audrieth, Nickles, Inorg. Synth. 1, 90 (1939). Industrial
prepn by the action of sodium hypochlorite on urea in the presence
of NaOH: BIOS Final Report 369; Moncrieff, Manuf. Chem. 18, 177 (1947). Revised lab procedures: Pfeiffer, Simons, Ber. 80, 127 (1947); Adams, Brown, Org. Synth. coll. vol. I, 2nd
ed. (1941), p 309. Crystal structure: Nitta et al., Acta Crystallogr. 4, 289 (1951);
Jnsson, Hamilton, ibid. 26B, 536 (1970). Review of activity and clinical studies in
cancer cachexia: J. Gold, Nutr. Cancer 9, 59-66 (l987).
Properties
Orthorhombic crystals. Glass-like plates or prisms.
d 1.378: Curtis, Jay, J. Prakt. Chem. 39, 39 (1889); d7 2.016. mp 254°. Sol
in about 33 parts water; freely sol in hot water. Insol in alcohol.
pH of 0.2 molar aq soln 1.3.Caution
This substance is reasonably anticipated
to be a human carcinogen: Report on Carcinogens,
Eleventh Edition (PB2005-104914, 2004) p III-145.Use
In the gravimetric estimation of nickel, cobalt
and cadmium; in the refining of rare metals; as antioxidant in soldering
flux for light metals; as reducing agent in the analysis of minerals
and slags; in separating polonium from tellurium; in tests for blood;
for destroying fungi and molds; in the prepn of hydrazine hydrate.