| Place of Origin: | Hunan, China |
|---|---|
| Brand Name: | XSC-SINCERE |
| Model Number: | Sodium Metabisulfite |
| Minimum Order Quantity: | 25 Ton/20' |
| Price: | Negotiable |
| Packaging Details: | in the woven bag lined with plastic, net wt. 25kgs or 1000kgs bags. |
| Delivery Time: | 20 Days |
| Payment Terms: | L/C; D/P; T/T |
| Supply Ability: | 20000 Ton/per year |
| Molecular Weight: | 190.1065 | Form: | White Powder |
|---|---|---|---|
| Purity: | 96.5% Min | Smell: | Sulphorous |
| Application: | Water Purifier, Gas Purification Agent,mordant,herbicide; Pesticides. | PH-Value: | (50 G/l) At 20 °C: 3.5-5.0 |
| Formula: | Na2S2O5 | Sensitivity: | Air & Moisture Sensitive |
| Density: | 1.48 | Merck : | 14,8638 |
| CAS: | 7681-57-4 | HS Code: | 2832.2000.00 |
| High Light: | 7681-57-4 Powder,Na2S2O5 Powder,CAS 7681-57-4 |
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96.5% Min Sodium Metabisulfite Cas Number:7681-57-4 Powder Used For Water Purifier
Description:
| Formula | Na2S2O5 |
| Molecular Weight | 190.1065 |
| CAS | 7681-57-4 |
| HS Code | 2832.1000.00 |
| Appearance | White or Light Brown Powder |
| Smell | Sulphorous |
| pH-value (50 g/l) at 20 °C | 3,5-5,0 Change in condition |
| Melting range | >300 °C |
| Solubility in / Miscibility with Water at 20 °C | 650 g/l |
| Sensitivity | Air & Moisture Sensitive |
| Density | 1.48 |
| Merck | 14,8638 |
| Purity | 96.5% Min |
Application:
1.Sodium metabisulfite is used as bleaching agent, preservative, anti-oxidant, color protector and preservative in food industry.
2.Sodium metabisulfite is used in industry for printing and dyeing, organic synthesis, printing, leather making, pharmaceutical and other departments. Used as preservative, bleach and loose agent in food processing.
ANALYSIS:
| Item | Standard | Test Result |
| Na2S2O5 | 96.5% MIN | 96.57% |
| SO2 | 65.4% MIN | 65.44% |
| Fe | 0.004% MAX | 0.0024% |
| Pb | 0.0018% MAX | 0.0009% |
| Insoluble | 0.0002% MAX | 0.0002% |
Uses
Food additive
It is used as a preservative and antioxidant in food.
It may cause allergic reactions in those who are sensitive to sulfites, including respiratory reactions in asthmatics, anaphylaxis, and other allergic reactions in sensitive individuals.
Sodium metabisulfite and potassium metabisulfite are the primary ingredients in Campden tablets, used for wine and beer making.
The acceptable daily intake is up to 0.7 milligrams per kilogram of body weight. Sodium metabisulfite oxidizes in the liver to sulfate which is excreted in the urine.
Sanitization and cleaning agent
It is commonly used in homebrewing and winemaking to sanitize equipment. It is used as a cleaning agent for potable water reverse osmosis membranes in desalination systems. It is also used to remove chloramine from drinking water after treatment.
