Item Standard …
Item | Standard |
Appearance | White crystal or powder |
Purity | ≥99.6% |
Melting point | 165-168 |
Chroma | ≤5 APHA |
Heavy metal(pb)mg/kg | ≤1 |
Iron(Fe) mg/kg | ≤1 |
Solubility, clarity(5% aqueous solution) |
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