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1.Chemical and Physical Properties:
Products Name:Sodium Bisulfite
Molecular Form:NaHSO3
Molecular Weight:104.06
CAS NO.:7631-90-5
EINECS NO.:231-548-0
H.S Code:2832100000.
Sodium Bisulfite is white monoclinic crystalline powder with sulfur dioxide odor; relative density: 1.48; very easily soluble in water; can be decomposed when heated; slightly soluble in ethanol; aqueous solution is acidic; has strong reducing property; can be oxidized in the air or loose sulfur dioxide.
2.Usage:
Sodium Bisulfite is used in the bleaching of cotton textiles; as reducing agent in dyes, paper-making, leather, chemical synthesis; in the manufacture of pharmaceutical intermediates, photographic developer, food bleacher, antiseptic and anti-oxidants.
3.Specifications:
Sodium Bisulfite Standard:HG/T3814-2006
|
Test Item |
Standard Request. |
Inspect Result |
Inspect Conclusion |
|
Appearance |
White crystalline powder |
Conformed |
Pass |
|
Content (NaHSO3) % |
≥99% |
99.1% |
Pass |
|
SO2% |
64%-67% |
65% |
Pass |
|
Cl% |
0.05 |
0.03 |
Pass |
|
Fe% |
≤0.004% |
0.002% |
Pass |
|
Water Insoluble Matter% |
≤0.03% |
0.01% |
Pass |
|
Heavy metal (Pb)% |
≤0.001% |
0.0005% |
Pass |
|
As% |
≤0.0002% |
<0.0001% |
Pass |
|
PH |
4.0-5.0 |
4.3 |
Pass |
4.Packing Details:
Sodium Bisulfite will be packed in N.W25kg plastic woven bag lined with PE liner,or 500kg/1000kg/1100kg/1200kg jumbo bag.
20MT-25MT will be loaded in 1*20’FCL container.
5.Storage:
Sodium Bisulfite should be stored in cool and dry place, avoid moisture and heat. No breakage, No mixed with oxidant and toxic matter. The storage period is 6 month since the production date. It should be transported by clean car, with covering matter, avoid raining.
