硫酸钾
|
试剂级分析纯
|
试剂级化学纯
|
氨糖专用级
|
氨糖低钠级
|
含量(K2SO4)%
|
≥99.0
|
≥98.5
|
≥99.0
|
≥99.0
|
水不溶物%
|
≤0.005
|
≤0.01
|
≤0.005
|
≤0.005
|
砷(As)%
|
≤0.0001
|
≤0.0005
|
≤0.0002
|
≤0.0001
|
PH(50g/L,25℃)
|
5.0~8.0
|
5.0~8.0
|
5.0~8.0
|
5.0~8.0
|
氯化物(Cl),%
|
≤0.0005
|
≤0.001
|
≤0.02
|
≤0.005
|
总氮量(N)%
|
≤0.0005
|
≤0.001
|
≤0.0005
|
≤0.0005
|
钙(Ca)%
|
≤0.01
|
≤0.02
|
≤0.01
|
≤0.01
|
重金属(以Pb计)%
|
≤0.0005
|
≤0.001
|
≤0.0005
|
≤0.0005
|
铁(Fe)%
|
≤0.0002
|
≤0.0005
|
≤0.0002
|
≤0.0002
|
钠(Na)%
|
≤0.03
|
≤0.1
|
——
|
≤0.005
|
细度(40-80目筛)
|
——
|
——
|
合格
|
合格
|
硫酸钾
|
军工级
|
火药级
|
饲料级
|
工业级
|
项 目
|
指 标
|
指 标
|
指 标
|
指 标
|
含量(K2SO4)%
|
≥99.0
|
≥99.0
|
≥98.5
|
≥98.5
|
水不溶物%
|
≤0.01
|
≤0.02
|
——
|
——
|
砷(As)%
|
≤0.0002
|
——
|
≤0.001
|
≤0.001
|
PH(50g/L,25℃)
|
6.0~8.0
|
6.0~8.0
|
——
|
——
|
氯化物(Cl),%
|
≤0.001
|
≤0.002
|
——
|
——
|
总氮量(N)%
|
——
|
——
|
——
|
——
|
钙(Ca)%
|
≤0.02
|
≤0.03
|
——
|
——
|
重金属(以Pb计)%
|
≤0.001
|
≤0.001
|
≤0.002
|
≤0.002
|
铁(Fe)%
|
≤0.0005
|
≤0.001
|
——
|
——
|
钠(Na)%
|
≤0.1
|
——
|
——
|
——
|
镁(Mg)%
|
≤0.005
|
≤0.01
|
——
|
——
|
细度(120目筛)
|
——
|
≤5
|
过40目筛≥95
|
——
|