Anhydrous sodium sulfite
| Post Date: |
Aug 01,2013 |
| Expiry Date: |
Jan 28,2014 |
| Detailed Description: |
Cas No. :7757-83-7
Anhydrous sodium sulfite is the main product of our factory with annual production capacity of 100,000 tons. It is white crystalline powder, well soluble inw water and slightly soluble in alcohol. Easily oxidized by the oxygen in the air. It is also reductant. Avoid contact with acid in storage.
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Anhydyous sodium sulphite
|
|
English name
|
Anhydyous sodium sulphite |
|
Molecular formula
|
Na2SO3 |
|
Molecular weight
|
126.04 |
|
Properties
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White crystalline powder, specific gravity 2.633, soluble in water, slightly soluble in alcohol, aqueous solution was slightly alkaline, thermal decomposition, reductive. |
|
Use
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Mainly used in printing and dyeing, pharmaceutical, papermaking, chemical fiber, photography, food and other industries. |
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Technical specifications
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High purity grade
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Refined grade
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Photographic grade
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Industrial grade
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Industrial grade
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Industrial grade
|
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Sodium sulfite
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Sodium sulfite
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Sodium sulfite
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High-class product
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High-class product
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First grade product
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Na2SO3 ≥ %
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98
|
98
|
97
|
98
|
97
|
96
|
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Fe ≤ %
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0.0005
|
0.002
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0.005
|
0.003
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0.003
|
0.005
|
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Water insoluble ≤ %
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0.005
|
0.01
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0.05
|
0.02
|
0.02
|
0.03
|
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Free alkali ≤ %
|
0.1
|
0.3
|
0.15
|
0.1
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0.1
|
0.4
|
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Sodium sulfate ≤ %
|
1.5
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1.5
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—
|
1.5
|
2.5
|
—
|
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Sodium chloride ≤ %
|
0.005
|
0.02
|
—
|
0.01
|
0.1
|
—
|
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Heavy metal on Pb≤ %
|
0.001
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0.002
|
0.002
|
—
|
—
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—
|
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As ≤ %
|
0.0001
|
0.0005
|
—
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—
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—
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—
|
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Sodium thiosulfate ≤%
|
0.01
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0.02
|
0.03
|
—
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—
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—
|
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Aqueous solution appearance
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Qualified
|
Qualified
|
Qualified
|
—
|
—
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—
|
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Reaction of silver nitrate ammonia solution
|
—
|
—
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Qualified
|
—
|
—
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—
|
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| CAS Registry Number: |
|
| Synonyms: |
;Sodium sulfite anhydrous;Sodium sulphite;anhydrous sodium sulfite;Sodium sulfite ,anhydrous;Sodium Sulfite (Food Grade); |
| Molecular Formula: |
Na2SO3 |
| Molecular Weight: |
126.04 |
| Molecular Structure: |
|
| Hazard Symbols: |
 Xn:Harmful;
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| Risk Codes: |
R22:;
R36/37/38:;
|
| Safety Description: |
S24/25:;
|
| Company: |
Shandong Xinke Petrochemical Co., Ltd.
[ China ]
|
| Contact: |
Yin zhihui |
| Tel: |
+86-546-7277018 +86-1895462195 |
| Fax: |
+86-546-7277078 |
| Email: |
sdxksh@sdxksh.com |
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