Potassium hydrogen phthalate 99.99% acidimetric standard
Supplier: Thermo Scientific
Synonyms:
Potassium phthalate monobasic, Potassium biphthalate, Potassium Acid Phthalate, KHP, Phthalic Acid Monopotassium Salt, Phthalic acid potassium salt
177121000
177125000
177120025
ACRO177121000EA
79.6
GBP
ACRO177121000
ACRO177125000
ACRO177120025
Potassium hydrogen phthalate 99.99% acidimetric standard
Potassium hydrogen phthalate
Formula:
HOOCC₆H₄COOK MW: 204,22 g/mol Melting Pt: 295…300 °C (dec.) Density: 1,6362 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00013070 CAS Number: 877-24-7 EINECS: 212-889-4 Merck Index: 13,07694 |
Specification Test Results
Appearance | White Crystalline powder or crystals |
Infrared spectrum | Conforms |
Assay | 99.95 to 100.05 % |
pH | 3.8 to 4 (5 % at 20°C) |
Sulfate (SO4) | ≤60 ppm |
Chlorine compounds | ≤30 ppm (as Cl) |
Iron (Fe) | ≤5 ppm |
Sodium (Na) | ≤50 ppm |
Heavy metals (as Pb) | ≤5 ppm |
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