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Sigma-Aldrich

Ammonium sulfite solution

technical, 34%

Synonym(s):

Diammonium sulfite, Diammonium sulfonate

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About This Item

Linear Formula:
(NH4)2SO3
CAS Number:
Molecular Weight:
116.14
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.22

grade

technical

Quality Level

concentration

34%
~34% in H2O

SMILES string

N.N.OS(O)=O

InChI

1S/2H3N.H2O3S/c;;1-4(2)3/h2*1H3;(H2,1,2,3)

InChI key

PQUCIEFHOVEZAU-UHFFFAOYSA-N

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General description

Ammonium sulfite is an ammonium salt of sulfurous acid and a byproduct of the flue gas desulfuration process by ammonia. Ammonium sulfite can be oxidized into ammonium sulfate, which can be used as a fertilizer.

pictograms

Exclamation mark

signalword

Warning

hcodes

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

supp_hazards

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type ABEK (EN14387) respirator filter


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