Sodium sulfite CAS NO.7757-83-7

Specification 1.Molecular Formula: NA2SO3.7H2O 2.Molecule Weight: 126.04 Na2CO3 100% 0.800 S 98% 0.305 NaOH 100% 0.111 3.Properties: colorless…

Specification 1.Molecular Formula: NA2SO3.7H2O 2.Molecule Weight: 126.04 Na2CO3 100% 0.800 S 98% 0.305 NaOH 100% 0.111 3.Properties: colorless monoclinic crystal. Density 1.561 4.Quality standard: Industrial Grade:national standard GB/T 9005-88; photo grade :national standard GB/T 10550-89 Consumed quota: adsorption method of Na2CO3 liquid 5.Standard:HG/T 2826—1997 6. CAS No.:7757-83-7 7.Appearance:white or slightly yellow crystal powder 8.Odor: strong sulfur dioxide odor 9.Package:PE liner plastic woven bags or compound woven bags outside, 25kg or 50kg net. Application: Industrial grade: 1.Used as deoxidizer and bleaching agent in the scouring of cotton fabrics; 2.Used as developer in photosensitive industry; 3.Used as reductant in the production of m-phenylenediamine, 2,5 dichloropyrazolone, anthraquinone-1-sulfonate, 1-aminoanthraquinone and Aminosalicylic acid, sodium salt ; 4.Used as removing agent of lignin, stabilizer of artificial fiber, 5. Used in light dependent resistors, the treatment of plating sewage and drink water.Packing & storage: 1.Net wt 50kg in plastic bag or rubber bag lined with PE plastic bag (double-layer kraft in the middle of packing). 2.The mouth of inner bag is tied and hot-seamed and outer mouth is seamed. 3.Sealed tightly, kept in cool and dry place, no contact with air, or mix with oxidant, strong acid and toxic & harmful substance. It is easy to deliquescence, so it should not be stored for long time. 4.Avoid rain and insolation. If fire, fighting with water and fire extinguisher.