Potassium hydrogen phthalate 99.99% acidimetric standard

Supplier: Thermo Scientific Chemicals

ThermoScintific Chemicals

ThermoScintific Chemicals

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

17712-5000 AC17712-0025 17712-1000

TS17712-1000EA 43.51 USD

TS17712-1000 TS17712-0025 TS17712-5000

Potassium hydrogen phthalate 99.99% acidimetric standard

Potassium hydrogen phthalate

Formula: HOOCC₆H₄COOK
MW: 204.22 g/mol
Melting Pt: 295…300 °C (dec.)
Storage Temperature: Ambient

MDL Number: MFCD00013070
CAS Number: 877-24-7
EINECS: 212-889-4
Merck Index: 13,07694

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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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