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Ammonium sulfite information


Ammonium sulfite
Ball-and-stick model of two ammonium cations and one sulfite anion
Names
IUPAC name
Ammonium sulfite
Other names
Ammonium sulphite, Diammonium sulfite, Diammonium sulfonate, Sulfurous acid, Diammonium salt, Sulfurous acid, ammonium salt(1:2)
Identifiers
CAS Number
  • 10196-04-0 checkY
3D model (JSmol)
  • Interactive image
  • Interactive image
ChemSpider
  • 23404 checkY
ECHA InfoCard 100.030.428 Edit this at Wikidata
EC Number
  • 233-484-9
PubChem CID
  • 25041
UNII
  • 8LF589Y5GD checkY
UN number 3077
CompTox Dashboard (EPA)
  • DTXSID2064991 Edit this at Wikidata
InChI
  • InChI=1S/2H3N.H2O3S/c;;1-4(2)3/h2*1H3;(H2,1,2,3) checkY
    Key: PQUCIEFHOVEZAU-UHFFFAOYSA-N checkY
SMILES
  • [H][N+]([H])([H])[H].[H][N+]([H])([H])[H].O=S([O-])[O-]
  • [O-]S([O-])=O.[NH4+].[NH4+]
Properties
Chemical formula
 (NH4)2SO3
Molar mass 116.14 g/mol
Appearance colourless[1] hygroscopic crystals[2]
Melting point 65 °C (149 °F; 338 K) decomposes[1]
Solubility in water
 35 g/100 mL[1]

32.4g/100mL at 0 degrees Celsius[3]

60.4g/100mL at 100 degrees Celsius[3]

Solubility Insoluble in acetone and alcohol[2]
Refractive index (nD)
 1.515.[3]
Hazards
GHS labelling:
Pictograms
 GHS05: CorrosiveGHS07: Exclamation mark
Signal word
 Danger
Hazard statements
 H314
Precautionary statements
 P260, P264, P280, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P332+P313, P337+P313, P362, P363, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Flash point Not Flammable[2]
Related compounds
Other anions
 Ammonium hydroxide Ammonium thiosulfate Ammonium sulfate Ammonium bisulfate Ammonium persulfate
Other cations
 Sodium sulfite
Potassium sulfite
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
checkY verify (what is checkY☒N ?)
Infobox references

Ammonium sulfite is the ammonium salt of sulfurous acid with the chemical formula (NH4)2SO3.

  1. ^ a b c "Chemical Entity Data Page".
  2. ^ a b c Cite error: The named reference MSDS was invoked but never defined (see the help page).
  3. ^ a b c Cite error: The named reference pubchem was invoked but never defined (see the help page).

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Ammonium sulfite

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Ammonium sulfite is the ammonium salt of sulfurous acid with the chemical formula (NH4)2SO3. Ammonium sulfite can be prepared by the reaction of ammonia...

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Ammonium sulfate

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Ammonium sulfate (American English and international scientific usage; ammonium sulphate in British English); (NH4)2SO4, is an inorganic salt with a number...

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Sulfite process

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A variety of sulfite/bisulfite salts are used, including sodium (Na+), calcium (Ca2+), potassium (K+), magnesium (Mg2+), and ammonium (NH4+). The lignin...

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Sodium bisulfite

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Report on the Safety Assessment of Sodium Sulfite, Potassium Sulfite, Ammonium Sulfite, Sodium Bisulfite, Ammonium Bisulfite, Sodium Metabisulfite and Potassium...

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Ammonium thiosulfate

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is produced by treating ammonium sulfite with sulfur at temperatures between 85 and 110 °C: [NH4]2SO3 + S → [NH4]2S2O3 Ammonium thiosulfate is used in...

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Ammonium persulfate

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Ammonium persulfate (APS) is the inorganic compound with the formula (NH4)2S2O8. It is a colourless (white) salt that is highly soluble in water, much...

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Ammonium bisulfate

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Ammonium bisulfate, also known as ammonium hydrogen sulfate, is a white, crystalline solid with the formula (NH4)HSO4. This salt is the product of the...

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Chloride sulfite

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A chloride sulfite or sulfite chloride is a chemical compound that contains chloride and sulfite anions (SO32− Cl−). The known compounds of this type...

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Treacle

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Report on the Safety Assessment of Sodium Sulfite, Potassium Sulfite, Ammonium Sulfite, Sodium Bisulfite, Ammonium Bisulfite, Sodium Metabisulfite and Potassium...

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List of inorganic compounds

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[NH4]2S Ammonium sulfite – [NH4]2SO3 Ammonium sulfate – [NH4]2SO4 Ammonium perchlorate – [NH4]ClO4 Ammonium permanganate – [NH4]MnO4 Ammonium persulfate...

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Tobias acid

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reaction of 2-hydroxynaphthalene-1-sulfonic acid with ammonia and ammonium sulfite. Tobias, Georg (January 1890). "Zur Anwendung der Sandmeyer' schen...

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Pulp mill

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In the sulfite process the pulping chemical is a mixture of metal (sodium, magnesium, potassium, or calcium) and ammonium sulfite or sulfite. After several...

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Caramel color

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growth unless in a dilute solution. When reacted with sulfites, caramel color may retain traces of sulfite after processing. However, in finished food products...

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Degassing

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effective. For example, especially in the field of electrochemistry, ammonium sulfite is frequently used as a reductant because it reacts with oxygen to...

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Solubility table

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W X Y Z "Cerium (III) Acetate" (PDF). Retrieved 2019-09-28. "Magnesium Sulfite" (PDF). srdata.nist.gov. Retrieved 2018-12-21. Patnaik, Pradyot. (2003)...

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Relaxer

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in most relaxers sold for home use, the active agents are ammonium sulfite and ammonium bisulfite (the two compounds are interchangeable, depending...

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Ammonium hydrosulfide

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Ammonium hydrosulfide is the chemical compound with the formula [NH4]SH. It is the salt derived from the ammonium cation and the hydrosulfide anion. The...

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List of food additives

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Ammonium bicarbonate – mineral salt Ammonium carbonate – mineral salt Ammonium chloride – mineral salt Ammonium ferric citrate – food acid Ammonium fumarate...

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Life on Venus

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chemicals, resulting in life-bearing droplets becoming a slurry of ammonium sulfite with less acidic pH of 1. These droplets would deplete sulfur dioxide...

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Sulfite sulfate

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A sulfite sulfate is a chemical compound that contains both sulfite and sulfate anions [SO3]2− [SO4]2−. These compounds were discovered in the 1980s as...

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Calcium bisulfite

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Calcium bisulfite (calcium bisulphite or calcium hydrogen sulfite) is an inorganic compound which is the salt of a calcium cation and a bisulfite anion...

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Molybdenum

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deficient in molybdenum have poorly functioning sulfite oxidase and are prone to toxic reactions to sulfites in foods. The human body contains about 0.07 mg...

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Molybdenum deficiency

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genetic disease that results in a sulfite oxidase (a molybdoenzyme) deficiency include increased plasma and urine sulfite, sulfate, thiosulfate, S-sulfocysteine...

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TNT

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called sulfitation, where the crude TNT is treated with aqueous sodium sulfite solution to remove less stable isomers of TNT and other undesired reaction...

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Photographic fixer

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trace amounts of the developer. This compound is often an alkali hydrogen sulfite (bisulfite) which also serves to preserve the thiosulphate. Less commonly...

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Sodium carbonate

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carbonate is used to make sodium bisulfite (NaHSO3), which is used for the "sulfite" method of separating lignin from cellulose. This reaction is exploited...

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