Molecular Formula: NaHSO3
Molecular Weight: 104.06
Molecular Weight: 104.06
Properties:
White monoclinic crystalline powder with sulfur dioxide odor; relative density: 1.49; 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.
White monoclinic crystalline powder with sulfur dioxide odor; relative density: 1.49; 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.
Quality Standard: HG/T3492-80
|
Technical Indicator |
High-purity grade |
Acrylic grade |
Food grade |
Refined grade |
Industrial grade 1 |
|
NaHSO3 ≥ % |
99.5 |
99 |
99 |
99 |
98 |
|
Insol. in water ≤ % |
0.003 |
0.005 |
0.03 |
0.04 |
0.05 |
|
Chloride(Cl) ≤ % |
0.003 |
0.004 |
_ |
_ |
_ |
|
Iron(Fe) ≤ % |
0.001 |
0.002 |
0.005 |
_ |
_ |
|
Heavy metal(Pb)≤% |
0.001 |
0.001 |
0.001 |
_ |
_ |
|
Arsenic(As) ≤ % |
0.0001 |
0.0001 |
0.0001 |
_ |
_ |
|
Clarity test |
Qualified |
Qualified |
Qualified |
Qualified |
Qualified |
Use: It is used in the bleaching of cotton textiles; as reducing agent in dyes, paper-making, leather, chemical synthesis; in the manufacture of pharmaceutical intermediates, developer, food bleacher, antiseptic and anti-oxidants.
Packing: In PP woven bag lined with PE bag; paper-plastic composite bag, and kraft paper bag etc.
Net wt.: 25/50/1000 kgs/bag or upon clients' request.