Product Specifications
Product Description
Properties: White or yellowish crystalline powder with strong SO2 odor; Specific wt.: 1.4. Soluble in water, its aqueous solution is acidic.
Molecular Formula: Na2S2O5
Molecular Weight: 190.10
CAS NO.: 7681-57-4
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Product Name: |
Sodium metabisulfite |
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Category: |
Inorganic chemical/inorganic salt |
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CAS NO: |
7681-57-4 |
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EC NO: |
231-673-0 |
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Molecular Formula: |
Na2S2O5 |
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Specifications |
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Item |
Quality spec. |
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food grade |
technical grade |
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Purity (Na2S2O5) |
≥ 98.0% |
≥ 970% |
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Sulfur dioxide( SO2) |
≥ 65.0% |
65.0% |
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Arsenic ( As ) |
≤ 0.0002% |
- |
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Heavy metal (Pb) |
≤ 0.0005% |
- |
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Selenium (Se ) |
≤ 0.0005% |
- |
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Iron (Fe) |
≤ 0.001% |
≤ 0.002% |
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Insol. in water |
≤ 0.02% |
≤ 0.05% |
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pH-value: |
4.0-4.8 |
4.0-4.8 |
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Note: |
Meet FCC V and E 223 standard |
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Molecular Weight: |
190.1 |
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Packing: |
In PP woven bag lined with PE film bag, lining thickness≥ 0.05mm, 25, 50, 1000kg/bag |
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Specifications: |
Properties: white or yellowish crystalline powder with strong SO2 odor; specific wt.: 1.4. soluble in water, its aqueous solution is acidic.
Molecular Formula: Na2S2O5
Molecular Weight: 190.10
CAS NO.: 7681-57-4 |
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Use: |
As mordant for printing & dyeing; as dechlorinating agent for textile bleaching; as reducing agent and sulfonating agent for chemical and medical industries etc. |
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Henan Xingfa Bio-Technology Co., Ltd.is a company producing sodium gluconate and HPAC. We supply industries and consumers with innovative products and are passionate about R&D.
Our factory is located in Jiaozuo city of Henan provience, covering an area of more than 106, 000 square meters. All of our products comply with the international quality standards and are greatly appreciated in a variety of different markets throughout the world. Our factory owns advanced production equipment and quality assurance system, we now can annually produce 50000MT one year. And we have attained EWC certificate of approval.
Since our company established, we have always adhered to the business policy as'Quality Best, Customer First'. We sincerely welcome domestic and overseas friends to visit us and looking forward to establishing successful business relationships with customers from all over the word. If you are interested in any of our productd, please feel free to contact us
