Products
Anhydrous sodium sulfite
Headquartered in China's historical and cultural city, the Yangtze River (Hunan) only port-Hunan Yueyang. The company has an advantageous geographical location and unique and convenient land and water transportation conditions. After more than ten years of development, the company has established more mature and stable sales channels in the domestic and foreign markets, creating a staff with high service awareness and strong execution; it has accumulated a wide range of reputation for integrity
Category: Products
Keywords: poly source, petroleum, chemical industry
anhydrous sodium sulfite
Chemical formula Na2S03
CAS login number 7757-83-7
Molecular weight: 126.04
Nature:
Appearance is a glossy white powder, with sulfurous acid odor, exposed to the air is gradually oxidized to sodium carbonate. Soluble in water, the solution is alkaline and can dissolve sulfur. Slightly soluble in alcohol, no change in dry air.
Use:
Used for man-made fiber stabilizer, fabric bleach, photographic developer, dye bleaching deoxidizer, perfume and dye reducing agent, paper lignin removal agent, etc.
Packing:
External polypropylene woven bag, lined with polyethylene plastic bag. The inner bag is tied and the outer bag is firmly sewn. Each bag net weight 25KG.
Storage and transportation:
Store in a cool, dry and ventilated warehouse. Keep away from fire heat sources. The packaging is required to be sealed and not to be in contact with air. Do not store and transport together with oxidants, strong acids and harmful substances. This product has deliquescence, not suitable for long storage. Transport to prevent rain and sun exposure.
Technical indicators: industrial grade: national standard HG/T 2967-2000
| Indicators |
Superior products |
First Class |
Qualified products |
| Na2SO3 ≥ % |
97 |
96 |
93 |
| Iron (Fe)≤% |
0.003 |
0.005 |
0.02 |
| Water insoluble ≤% |
0.02 |
0.03 |
0.05 |
| Free base (Na2CO3)≤% |
0.1 |
0.4 |
0.8 |
| Sodium sulfate (Na2SO3)≤% |
2.5 |
— |
— |
| Sodium chloride (NaCl)≤% |
0.1 |
— |
— |
| Heavy metals (as Pb) ≤% |
— |
— |
0.002 |
| Arsenic (As)≤% |
— |
— |
0.0002 |
Small crystal 0.1-1.4mm after sieving
Industrial products are white or light-colored crystals with a relative density of D = 1.769, decomposition at 235 ℃, soluble in water, acidic aqueous solution, insoluble in ethanol and acetone, hygroscopic, consolidated into blocks after moisture absorption, and ammonia gas is released under the action of alkalis.
Caprolactam grade ammonium sulfate
Industrial products are white or light-colored crystals with a relative density of D = 1.769, decomposition at 235 ℃, soluble in water, acidic aqueous solution, insoluble in ethanol and acetone, hygroscopic, consolidated into blocks after moisture absorption, and ammonia gas is released under the action of alkalis.
Caprolactam grade ammonium sulfate (more than or equal to 1.4 mm90% after screening)
Industrial products are white or light-colored crystals with a relative density of D = 1.769, decomposition at 235 ℃, soluble in water, acidic aqueous solution, insoluble in ethanol and acetone, hygroscopic, consolidated into blocks after moisture absorption, and ammonia gas is released under the action of alkalis.
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