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Name of product: Sodium Hydrosulfite 88% Expiry Date: 1 Year CAS:7775-14-6 EINECS No.:231-890-0 |
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Specification |
Tolerance |
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Purity (wt %) |
88 min |
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Na2CO3 (wt %) |
2.5-3.0 |
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Na2S2O3(wt %) |
0.5-1 |
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NaS2O5 (wt %) |
5-7 |
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Na2SO3(wt %) |
0.5-1.5 |
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Fe (ppm) |
20 ppm max |
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Water Insoluble |
0.1 |
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Total other heavy metals |
10 ppm max |
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Conclusion |
Confirm |
