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Sulfurous acid,ammonium salt (1:2)(CAS No. 10196-04-0)

Sulfurous acid,ammonium salt (1:2) H3N.1/2H2O3S (cas 10196-04-0) Molecular Structure

10196-04-0 Structure

Identification and Related Records

【Name】
Sulfurous acid,ammonium salt (1:2)
【CAS Registry number】
10196-04-0
【Synonyms】
Sulfurousacid, diammonium salt (8CI,9CI)
Sulfurous acid, diammonium salt
Diammonium sulfite
Diammonium sulfonate
HSDB 1426
Sulfurous acid, diammonium salt
UNII-8LF589Y5GD
【EINECS(EC#)】
233-484-9
【Molecular Formula】
H3N.1/2H2O3S (Products with the same molecular formula)
【Molecular Weight】
116.14
【Inchi】
InChI=1/2H3N.H2O3S/c;;1-4(2)3/h2*1H3;(H2,1,2,3)
【Canonical SMILES】
[NH4+].[NH4+].[O-]S(=O)[O-]
【MOL File】
10196-04-0.mol

Chemical and Physical Properties

【Appearance】
white crystals
【Density】
1.41(25℃)
【Melting Point】
60oC
【Boiling Point】
150oC
【Flash Point】
°C
【Solubilities】
Soluble in water, almost insoluble in alcohol, acetone.
【Color/Form】
White, solid
【Stability】
Stable. Efflorescent. Incompatible with acids, strong oxidizing agents.
【Computed Properties】
Molecular Weight:116.14012 [g/mol]
Molecular Formula:H8N2O3S
H-Bond Donor:2
H-Bond Acceptor:4
Rotatable Bond Count:0
Exact Mass:116.025563
MonoIsotopic Mass:116.025563
Topological Polar Surface Area:84.4
Heavy Atom Count:6
Formal Charge:0
Complexity:18.8
Isotope Atom Count:0
Defined Atom Stereocenter Count:0
Undefined Atom Stereocenter Count:0
Defined Bond Stereocenter Count:0
Undefined Bond Stereocenter Count:0
Covalently-Bonded Unit Count:3

Safety and Handling

【Skin, Eye, and Respiratory Irritations】
INHALATION OF DUST CAUSES IRRITATION OF NOSE AND THROAT. INGESTION CAUSES IRRITATION OF MOUTH AND STOMACH. DUST IRRITATES EYES.
【Other Preventative Measures】
SRP: The scientific literature for the use of contact lenses in industry is conflicting. The benefit or detrimental effects of wearing contact lenses depend not only upon the substance, but also on factors including the form of the substance, characteristics and duration of the exposure, the uses of other eye protection equipment, and the hygiene of the lenses. However, there may be individual substances whose irritating or corrosive properties are such that the wearing of contact lenses would be harmful to the eye. In those specific cases, contact lenses should not be worn. In any event, the usual eye protection equipment should be worn even when contact lenses are in place.
【Protective Equipment and Clothing】
INHALATION OF DUST CAUSES IRRITATION OF NOSE AND THROAT. INGESTION CAUSES IRRITATION OF MOUTH AND STOMACH. DUST IRRITATES EYES.
【Disposal Methods】
SRP: At the time of review, criteria for land treatment or burial (sanitary landfill) disposal practices are subject to significant revision. Prior to implementing land disposal of waste residue (including waste sludge), consult with environmental regulatory agencies for guidance on acceptable disposal practices.

Use and Manufacturing

【Use and Manufacturing】
Methods of Manufacturing

In the ATS process, sulfur dioxide is absorbed from incinerated Claus tail gas in aqueous ammonia to produce ammonium sulfite and ammonium bisulfite in solution.
【Sampling Procedures】
Ammonia is collected in a dilute sulfuric acid solution in a midget impinger to form ammonium sulfate. Personal sampling pump is to draw the air at a flow rate of 1 liter/min for 10 to 15 minutes. /Ammonia/

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