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Sodium Sulfite CAS#7757-83-7
CAS Number: 7757-83-7
Chemical Formula: Na2O3S
Synonyms:
Anhydroussodiumsulfite
Disodiumsulfite
Exsiccatedsodiumsulfite
Appearance: White to slightly yellow
HS Code:28321000
MOQ (Minimum Order Quantity): 1 FCL (Full Container Load)
Products Description of Sodium sulfite CAS#7757-83-7
As a soluble sodium salt of sulfurous acid, Sodium sulfite (Na2SO3) indicates blenching, de-sulfurizing and dechlorinating homes which is broadly utilized in quite a number fields. It is chiefly used in the pulp and papermaking enterprise due to its blenching activity. It can serve as a excellent additive to assist keep the clean look of precise products. Besides, sodium sulfite is a factor in many pharmaceuticals, which is nice to preserve the efficiency and steadiness of drugs. It can additionally be utilized for water cure as an oxygen scavenger agent and utilized in flue fuel desulfurization and maintenance of picture developer solutions, etc.
Parameters
| Melting point | 500 °C |
| density | 2.63 |
| bulk density | 1480kg/m3 |
| refractive index | 1,484 |
| storage temp. | Store at +5°C to +30°C. |
| solubility | H2O: 1 M at 20 °C, clear, colorless |
| form | Solid |
| Specific Gravity | 2.633 |
| color | White to slightly yellow |
| Odor | Odorless |
| PH | 9.0-10.5 (25℃, 1M in H2O) |
| PH Range | 9.0 - 10.5 at 126 g/l at 25 °C |
| 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) |
| EPA Substance Registry System | Sodium sulfite (7757-83-7) |
| Absorption | cut-off at 265nm in H2O at 1M |
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 |
| TSCA | Yes |
| HS Code | 28321000 |
| Hazardous Substances Data | 7757-83-7(Hazardous Substances Data) |
| Toxicity | LD50 i.v. in mice: 175 mg/kg, Hoppe, Goble, J. Pharmacol. Exp. Ther. 101, 101 (1951) |
Product Application of Sodium sulfite CAS#7757-83-7
Sodium sulfite (CAS#7757-83-7) is an inorganic compound with decreasing and alkaline properties, and has a extensive vary of applications. In the chemical and industrial fields, it can be used for dechlorination after bleaching in the fabric industry, pulping and cooking in the paper industry, deaeration in water remedy and remedy of chromium-containing wastewater, as properly as hair elimination and softening in the leather-based industry. It is used as a preservative, bleaching agent and antioxidant in the meals and beverage enterprise for preserved fruits, fruit juices and different foods, and additionally for regulating fermentation in brewing.
Factory and Equipment Show
Fast delivery time
Inventory 2-3 working days New production 7-10 working days
