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Sodium sulfite is white crystals or powder, while it's Molecular Formula is Na2SO3. Paper industry (semichemical pulp), reduc- ing agent (dyes), water treatment, photographic developer, food preservative and antioxidant, tex- tile bleaching (antichlor).
The CAS number of Sodium sulfite is 7757-83-7.
More information of Sodium sulfite 7757-83-7 are:
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Synonyms |
Sulfurous acid, sodium salt;Natrium sulfurosum;disodium sulfite heptahydrate;disodium salt;Sodium sulfite, exsiccated;Sodium sulfite anhydrous;Sulfurous acid, sodium salt (1:2);Sulfurous acid, sodium salt, heptahydrate;Sodium sulfite ,anhydrous;Sodium Sulphite/Sodium Sulphite anhydrous;Natrii sulphis;Sodium sulfite heptahydrate (2:1:7);sodium; sulfurous acid;Natriumsulfid [German];Sulphurous acid, sodium salt;Sodium sulfite solution;EPA Pesticide Chemical Code 078203;Sulftech;Sodium sulfite heptahydrate;Exsiccated sodium sulfite;Sodium sulfite (Na2SO3);Disodium sulfite (Na2SO3);Sulfurous acid,compounds,disodium salt;anhydrous sodium sulphite;Natriumsulfit [German]; |
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CAS Number |
7757-83-7 |
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Molecular Formula |
Na2SO3 |
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Molecular Weight |
126.044 |
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Density |
2.63 |
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Melting Point |
500 °C |
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HS CODE |
28321000 |
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PSA |
82.40000 |
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LogP |
-0.13840 |
As a soluble sodium salt of sulfurous acid, Sodium sulfite (Na2SO3) shows blenching, de-sulfurizing and dechlorinating properties which is widely applied in various fields. It is primarily used in the pulp and papermaking industry due to its blenching activity. It can serve as a good additive to help preserve the fresh appearance of good products. Besides, sodium sulfite is a component in many pharmaceuticals, which is effective to maintain the potency and stability of drugs. It can also be applied for water treatment as an oxygen scavenger agent and applied in flue gas desulfurization and preservation of photo developer solutions, etc.
InChI:InChI=1/2Na.H2O3S/c;;1-4(2)3/h;;(H2,1,2,3)/q2*+1;/p-2
Articles related to Sodium sulfite:
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Article |
Source |
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PROCESS |
- , (2021/09/26) |
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Specificity of decomposition of solids in non-isothermal conditions |
Vlase,Vlase,Doca,Doca , p. 597 - 604 (2008/10/08) |
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