|
 |
| Sodium hydrogen sulfite |
| English name |
Sodium hydrogen sulfite |
| Molecular formula |
NaHSO3 |
| Molecular weight |
104.7 |
| Properties |
white crystal powder. It can lose parts of sulfur dioxide when exposing in the air and becomes sulfate. |
| Use |
used in petroleum chemical, medical pharmacy and dye chemical. And used as reducing agent, antiseptic, etc. |
| Technical index |
High puritylevel |
Nitrilon level |
Food level |
Refining level |
Industry level one |
| NaHSO3 ≥ % |
99.5 |
99.0 |
99.0 |
99.0 |
98.0 |
| Water insoluble matter ≤ % |
0.003 |
0.005 |
0.03 |
0.04 |
0.05 |
| Chlorid(Cl) ≤ % |
0.003 |
0.004 |
-- |
-- |
-- |
| Iron(Fe) ≤ % |
0.001 |
0.002 |
0.005 |
-- |
-- |
| Heavy metal(以Pb计) ≤ % |
0.001 |
0.001 |
0.001 |
-- |
-- |
| Arsenic(As) ≤ % |
0.0001 |
0.0001 |
0.0001 |
-- |
-- |
| Clarity test |
Qualified |
Qualified |
Qualified |
Qualified |
Qualified |
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