質(zhì)量標(biāo)準(zhǔn): 項(xiàng)目Item 分析純 化學(xué)純
(AR) (CP)
含量[Cr2(SO4)3·6H2O]Assay,% ≥ 99.0 98.0
水不溶物Insoluble matter in water,% ≤ 0.01 0.02
氯化物(Cl)Chloride,% ≤ 0.005 0.01
鈉(Na)Sodium,% ≤ 0.05 0.1
鋁(Al)Aluminum,% ≤ 0.02 0.05
鉀(K)Potassium,% ≤ 0.05 0.01
鈣(Ca)Calcium,% ≤ 0.005 0.01
鐵(Fe)Iron,% ≤ 0.003 0.005
技術(shù)指標(biāo) 電鍍級(jí)
Cr2(SO4)3·6H2O,% ≥98.0
水不溶物Insoluble matter in water,% ≤0.02
氯化物(Cl)Chloride,% ≤0.01
鋁(Al)Aluminum,% ≤0.05
鐵(Fe)Iron,% ≤0.01
鈣(Ca)Calcium,% ≤0.01
鈉(Na)Sodium,% ≤0.05
鉀(K)Potassium,% ≤0.05