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Potassium hydrogénophtalate ACS acidimetric standard

Fournisseur: Thermo Fisher Scientific

Synonyms: Potassium phthalate monobasic, Potassium biphthalate, Potassium Acid Phthalate, KHP, Phthalic Acid Monopotassium Salt, Phthalic acid potassium salt

424061000 424065000 424060025
ACRO424061000EA 44.8 EUR
ACRO424061000 ACRO424065000 ACRO424060025
Potassium hydrogénophtalate ACS acidimetric standard
Potassium hydrogénophtalate
Formule: HOOCC₆H₄COOK
MW: 204.22 g/mol
Point de fusion: 295…300 °C (déc.)
Température de stockage: Température ambiante
Numéro MDL: MFCD00013070
Numéro CAS: 877-24-7
EINECS: 212-889-4
Merck Index: 13,07694
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Résultats des tests de spécification

Appearance White Crystalline powder or crystals
Infrared spectrum Conforms
pH 4.00 to 4.02 (0.05M at 25.0 +/- 0.2°C)
Titration with NaOH 99.95 to 100.05 % (On dried basis)
Chlorine compounds (as Cl) ≤0.003 %
Iron (Fe) ≤5 ppm
Sodium (Na) ≤0.005 %
Heavy metals (as Pb) ≤5 ppm
Sulfur compounds (as S) ≤0.002 %
Insoluble matter ≤0.005 %


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