颁丑补谤补肠迟别谤颈蝉迟颈肠:
Appearance and properties: pure product is white crystalline powder, ordinary product is yellowish white powder substance.
Melting Point(℃): 150
Concentration: calcium content: 6.3 ? 6.8%; Free acid ≤ 0.5; Moisture ≤ 3.
Solubility: insoluble in water, slightly soluble in hot ethanol. Hazard characteristics: