ammonium sulfite

Description

ammonium sulfite · CAS 10196-04-0 · H8N2O3S. UNII 8LF589Y5GD. Density: 1.41 @25 °C.

Identification

CAS Registry Number	10196-04-0
PubChem CID	25041
Molecular formula	H8N2O3S
IUPAC name	diazanium;sulfite
UNII (FDA)	8LF589Y5GD

Computed Descriptors

Molecular Weight	116.14
Hydrogen Bond Donor Count	2
Hydrogen Bond Acceptor Count	4
Rotatable Bond Count	0
Exact Mass	116.02556330
Monoisotopic Mass	116.02556330
Topological Polar Surface Area	84.4
Heavy Atom Count	6
Formal Charge	0
Complexity	18.8

Physical & Chemical Properties

Density	1.41 @25 °C

Physical description & handling notes

• Ammonium sulfite is a colorless crystalline solid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. It is used in the manufacture of other chemicals, in medicine, and photography.
• Large Crystals; Dry Powder; Liquid
• White odorless solid; [HSDB] White odorless crystalline solid; [MSDSonline]
• White, solid
• Odorless
• Soluble in water, almost insoluble in alcohol, acetone.

Regulatory Status

Regulatory & Food Contact	FDA Substance added to food: COLOR OR COLORING ADJUNCT CIR / INCI: Cosmetic ingredients (Ammonium Sulfite) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Preservative
GHS notification summary	71.1% (133 / 187)

GHS Hazard Classification

GHS notification summary	71.1% (133 / 187)
Reported hazard statements	H314 (13.4%), H315 (15%), H319 (15.5%), H335 (10.2%), H302, H318

Documented Uses

• CIR ingredient: Ammonium Sulfite
• Used in photography and in the production of caramel, refractory bricks, lubricants, medicines, permanent wave solutions, ammonium thiosulfite, and ammonium chloride; [HSDB]
• Photographic Processing [Category: Other]
• Dressing Hair [Category: Other]
• In photography; as reducing agent; in bricks for blast furnace linings; in lubricants for metal cold-working.
• ... Medicine, permanent wave solns. /Ammonium sulfite monohydrate/

Synonyms

AMMONIUM SULFITE; Diammonium sulfite; Ammonium sulphite; 10196-04-0; Diammonium sulfonate; 8LF589Y5GD; Sulfurous acid, diammonium salt; Sulfurous acid, ammonium salt; DTXSID2064991; RefChem:112210; DTXCID4032667; 233-484-9; diazanium;sulfite; ammoniumsulfite; Ammoniumsulfit; diazanium;sulite

Frequently Asked Questions

What are the CAS number and molecular formula of ammonium sulfite?

CAS 10196-04-0; molecular formula H8N2O3S; molecular weight — g/mol.

What other names is ammonium sulfite known by?

AMMONIUM SULFITE, Diammonium sulfite, Ammonium sulphite, 10196-04-0, Diammonium sulfonate, 8LF589Y5GD.

What is the regulatory status of ammonium sulfite?

Documented regulatory listings: FDA Substance added to food: COLOR OR COLORING ADJUNCT; CIR / INCI: Cosmetic ingredients (Ammonium Sulfite) -> CIR (Cosmetic Ingredient Review); CIR / INCI: Preservative.

Is ammonium sulfite classified as hazardous?

71.1% of GHS notifications report no hazard classification (133 of 187).

What are the key physical properties of ammonium sulfite?

Density: 1.41 @25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.