Ammonium bisulfate

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White deliquescent crystals that are soluble in water. Ammonium bisulfate is used as a preservative in paper pulp and as an ingredient in hair-wave lotions.

Synonyms and Related Terms

acid ammonium sulfate; ammonium hydrogen sulfate; mono-ammonium salt of sulfuric acid; ammonium bisulphate (Br.)


CDC Fine Chemicals: MSDS

Physical and Chemical Properties

Soluble in water. Insoluble in acetone and ethanol.

Composition NH4HSO4
CAS 7803-63-6
Melting Point 145 C
Density 1.787 g/ml
Molecular Weight mol. wt. = 115.11
Refractive Index 1.463, 1.473, 1.510

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • The Dictionary of Paper, American Paper Institute, New York, Fourth Edition, 1980
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 526
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.463, 1.473, 1.510

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