Phosphotungstic acid
|
AR (AR grade)
|
Chemically pure (CP grade)
|
|
Insolubles: 0.02
|
Insolubles:0.02
|
|
Chloride: (c1) 0.03
|
Chloride: 0.03
|
|
Nitrate:(NO3) 0.01
|
Nitrate:0.01 |
|
Ammonium salt: (NH4) 0.02
|
Salt:0.02 |
|
Sulfate: (SO4) 0.02
|
Sulfate:0.02 |
|
Sodium: (Na) qualified
|
Iron:0.002 |
|
Calcium:(Ca) qualified
|
Heavy metal:0.002 |
| Iron：(Fe) 0.002 | |
| Heavy metals(Pb)：0.002 |
