Hydrazine sulfate

Hydrazine sulfate, more properly hydrazinium hydrogensulfate, is a salt of the cation hydrazinium and the anion bisulfate (hydrogensulfate), with the formula N2H6SO4 or more properly [N2H5]+[HSO4]−. It is a white, water-soluble solid at room temperature.

Hydrazine sulfate
Names
IUPAC name
Hydrazinium hydrogen sulfate
Other names
  • Hydrazinium sulfate
  • Hydrazinium hydrogensulfate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.088
EC Number
  • 233-110-4
PubChem CID
UNII
  • InChI=1S/H4N2.H2O4S/c1-2;1-5(2,3)4/h1-2H2;(H2,1,2,3,4) Y
    Key: ZGCHATBSUIJLRL-UHFFFAOYSA-N Y
  • InChI=1/H4N2.H2O4S/c1-2;1-5(2,3)4/h1-2H2;(H2,1,2,3,4)
    Key: ZGCHATBSUIJLRL-UHFFFAOYAL
SMILES
  • O=S(=O)(O)O.NN
Properties
[N2H5]+[HSO4]−
Molar mass 130.12 g·mol−1
Appearance colourless crystals or white powder
Density 1.37 g/cm3
Melting point 254°C
Boiling point decomposes
30 g/L (20°C)
Hazards
GHS labelling:
NFPA 704 (fire diamond)
3
1
0
Safety data sheet (SDS) External MSDS
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Y verify (what is YN ?)
Infobox references

Hydrazine sulfate has a number of uses in chemical laboratories and in the chemical industry, including analytical chemistry and the synthesis of organic compounds. In those uses it is usually preferred to pure hydrazine, because it is not volatile and is less susceptible to atmospheric oxidation on storage.

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