| 产品规格︰ | Items Specifications Appearance White to off-white crystalline powder Solubility Free soluble in water Clarity and color of the solution ≤7B Melting point 194.0-202.0℃ Loss on drying 0.5% max PH 2.3-2.7 Iron ≤60 ppm Residue on ignition 0.1% max Heavy metals 10 ppm max Assay 99.0% min |
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