Potassium hydrogen phthalate 99.95-100.05% ACS primary standard
Supplier: Thermo Scientific Chemicals
Warning
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Synonyms:
KHP
, Potassium phthalate monobasic
, Potassium Acid Phthalate
, Potassium biphthalate
, Phthalic Acid Monopotassium Salt
, Phthalic acid potassium salt
33351-A1
33351-30
33351-30
33351-A1
CAAA33351-30EA
109.18
CAD
CAAA33351-30
AA33351-30
CAAA33351-A1
AA33351-A1
Potassium hydrogen phthalate 99.95-100.05% ACS primary standard
Potassium hydrogen phthalate
As a primary standard for preparing volumetric alkali solutions and as a buffer in pH determinations
Formula:
HOOCC₆H₄COOK MW: 204.22 g/mol Melting Pt: 297 °C (dec.) Density: 1.636 |
MDL Number:
MFCD00013070 CAS Number: 877-24-7 Merck Index: 14,7612 |
Specification Test Results
Insoluble matter | 0.005 |
pH of a 0.05M solution | 4.0 at 25° |
Cl | 0.003% |
S | 0.002% |
Heavy Metals (as Pb) | 5 ppm |
Fe | 5 ppm |
Na | 0.00005 |
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