硫酸钴
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分子式 Molecular formula:CoSO4·7H2O

控制标准Control Standards

控制指标

Items

单位

Units

等级A

Grade A

等级B

Grade B

外观

Appearance

带棕黄色的红色结晶

 

Co

%

≥20.5

Ni

%

≤ 0.0010

≤ 0.0020

Cu

%

≤ 0.0010

≤ 0.0010

Fe

%

≤ 0.0010

≤ 0.0010

Mg

%

≤ 0.0010

≤ 0.0020

Pb

%

≤ 0.0010

≤ 0.0010

Zn

%

≤ 0.0010

≤ 0.0010

Cd

%

≤ 0.0010

≤ 0.0010

Mn

%

≤ 0.0010

≤ 0.0020

Ca

%

≤ 0.0010

≤ 0.0020

Na

%

≤ 0.0020

≤ 0.0050

Cr

%

≤ 0.0010

≤ 0.0010

Cl-

%

≤ 0.0030

水不溶物

Water-insoluble

%

≤ 0.0100

F-

%

≤ 0.0030

油份Oil

%

≤ 0.0015

磁性异物

Magnetic Meta Impurities

ppb

≤ 100