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| CAS No.: | 7783-11-1 |
|---|---|
| Name: | AMMONIUM SULFITE |
| Molecular Structure: | |
|
|
|
| Formula: | (NH4)3.H2O |
| Molecular Weight: | 116.14 |
| Synonyms: | Diammoniumsulfite monohydrate;ammonium sulfite hydrate (2:1:1); |
| EINECS: | 233-484-9 |
| Density: | 1.41 g/mL at 25oC(lit.) |
| Melting Point: | 60-70 °C |
| Solubility: | Soluble in water. Insoluble in acetone and alcohol. |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 31-36/37/38 |
| Safety: | 26-36 |
| PSA: | 92.45000 |
| LogP: | 1.13030 |
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Specification
The Sulfurous acid,diammonium salt, monohydrate (8CI,9CI), with the CAS registry number 7783-11-1, has the systematic of ammonium sulfite hydrate (2:1:1). It is a kind of colorless crystal. And the molecular formula of this chemical is (NH4)3.H2O.
The physical properties of Sulfurous acid,diammonium salt, monohydrate (8CI,9CI) are as following: (1)#H bond acceptors: 6; (2)#H bond donors: 10; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 82.4 Å2.
Preparation of Sulfurous acid,diammonium salt, monohydrate (8CI,9CI): It can be prepared by sulfur dioxide and ammonia.
SO2 + NH4OH → NH4HSO3
NH4HSO3 + NH4HCO3 → (NH4)3.H2O +CO2
Uses of Sulfurous acid,diammonium salt, monohydrate (8CI,9CI): It is used in the paper manufacturing industry, and also used as reducing agent and sulfonating agent in the organic synthesis, What's more, it is also used as complexing agent in gold plating.
You should be cautious while dealing with this chemical. It irritates eyes, respiratory system and skin, and if contact with acids, it will liberate toxic gas. Therefore, you had better take the following instructions: Wear suitable protective clothing, gloves and eye/face protection, and in case of contacting with eyes, rinse immediately with plenty of water and seek medical advice.
You can still convert the following datas into molecular structure:
(1)SMILES: [NH4+].[NH4+].O.[O-]S([O-])=O
(2)InChI: InChI=1/2H3N.H2O3S.H2O/c;;1-4(2)3;/h2*1H3;(H2,1,2,3);1H2
(3)InChIKey: ASPXBYAQZVXSNS-UHFFFAOYAE