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Potassium Hydrogen Phthalate Acs
TECHNICAL SPECIFICATIONS | |
Assay | 99.95-100.05% C8 H5O4K |
PH of a 0.05 M solution | 4.00-4.02 AT 25.0 +/- 0.2 0C |
| Maximum Allowable |
Insoluble matter | 0.005% |
Chlorine compounds (as Cl) | 0.003% |
Sulfur compounds (as S) | 0.002% |
Heavy metals (as Pb) | 5 ppm |
Iron (Fe) | 5 ppm |
Sodium (Na) | 0.005% |
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