Potassium hydrogen phthalate ≥99.5% (by titrimetric analysis) for HPLC, Fluka™

Supplier: Honeywell Chemicals

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

96148-250G 96148-50G
96148-250GEA 203 GBP
96148-250G 96148-50G
Potassium hydrogen phthalate ≥99.5% (by titrimetric analysis) for HPLC, Fluka™
Potassium hydrogen phthalate
Formula: HOOCC₆H₄COOK
MW: 204,22 g/mol
Boiling Pt: 378 °C (1,013 hPa)
Melting Pt: 295…300 °C
Density: 1,64 g/cm³ (20 °C)
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

Assay 99.5 - 100.5 %
pH (10 %) 3.5 - 5.0
Solution 20 g to 200 mL (H₂O) complying
Loss on drying (105°C) Max. 0.5 %
Absorbance 500 nm Max. 0.02
Absorbance at 350 nm Max. 0.02
Absorbance at 340 nm Max. 0.03
Absorbance at 330 nm Max. 0.05

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