| Model Number: | C180018 |
|---|---|
| Brand Name: | Sensedawn |
| Type: | Antioxidants,Preservatives |
| Place of Origin: | China (Mainland) |
| EINECS No.: | 231-821-4 |
| MF: | Na2SO3 |
| Other Names: | SODIUM SULFITE, EXSICCATED;SODIUM SULPHITE;anhydroussodiumsulfite |
| CAS No.: | 7757-83-7 |
| Melting Point: | 500 centigrade degree |
| Type: | Sodium Sulfite |
| Grade Standard: | Food Grade, Industrial Grade |
| Appearance: | White Powder |
Quick Details
Specifications
Place of Origin:Hubei,China(Mainland)
Brand Name:Sensedawn
CAS NO.:7757-83-7
Purity:97%
Application: It is used in dyeing industry as deoxidizer and bleaching agent for a variety of cotton fabric treating and scouring, which can prevent fabrics from local oxidation and deterioration of fibre strength. In photographic industry it is used as a reagent. In organic industry it is used as reducing agent in production of m-phenylenediamine, 25 - bared oxazolone, amino salicylic acid, etc. Textile industry uses it as a stabilizer for synthetic fibre. Other applications include various uses in paper mills, electronic industry, water treatment, etc.
| Sodium sulfite Chemical Properties |
| mp | 500 °C |
| density | 2.63 |
| refractive index | 1,484 |
| storage temp. | Store at RT. |
| solubility |
H2O: 1 M at 20 °C, clear, colorless |
| Water Solubility | 23 g/100 mL (20 oC) |
| Sensitive | Hygroscopic |
| Merck | 14,8682 |
| Stability: | Stable. Incompatible with strong acids. Moisture and air sensitive. |
| CAS DataBase Reference | 7757-83-7(CAS DataBase Reference) |
| NIST Chemistry Reference | sodium sulfite(7757-83-7) |
| Safety Information |
| Hazard Codes | Xn |
| Risk Statements | 31-36/37/38-22-40-36/38 |
| Safety Statements | 24/25-36-26-22 |
| WGK Germany |
1 |
| RTECS |
WE2150000 |
| F | 3-10 |
| HS Code | 28321000 |
| Hazardous Substances Data | 7757-83-7(Hazardous Substances Data) |
| Sodium sulfite Usage And Synthesis |
| Chemical Properties | white crystals or powder |
| General Description | White odorless powder. Density 2.633 g / cm3. Moderately toxic. Sinks in water and dissolves slowly. Also transported as a heptahydrate Na2SO3.7H2O. |
| Air & Water Reactions | Soluble in water. Reacts with hot water, steam or acids to produce corrosive material. |
| Reactivity Profile | Sodium sulfite is a reducing agent, particularly under basic conditions. Reacts with oxidizing agents such as peroxides, epoxides, oxoacids. Emits toxic fumes of sodium oxide and oxides of sulfur if heated to decomposition [Lewis, 3rd ed., 1993, p. 1174]. |
| Health Hazard | When ingested, solutions cause gastric irritation by the liberation of sulfurous acid. Because of rapid oxidation to sulfate, sulfites are well tolerated until large doses are reached; then violent colic and diarrhea, circulatory disturbances, central nervous depression, and death can occur. |
| Fire Hazard | Literature sources indicate that Sodium sulfite is noncombustible. |
Good quality: purity reach 97%
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Good after-sale service:If any quality or weight shortage problems are found ,customers can claim for compensation by showing concerned evidences within 15 days after products arrived.
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