Potassium dihydrogen phosphate ≥99.5% for HPLC, Fluka™

Supplier: BURDICK & JACKSON FKA SIGMA
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60221-1KG 60221-250G 60221-50G
BJ60221-1KGEA 1109 USD
BJ60221-1KG BJ60221-250G BJ60221-50G
Potassium dihydrogen phosphate ≥99.5% for HPLC, Fluka™
Potassium dihydrogen phosphate
Formula: KH₂PO₄
Melting Pt: 253 °C
Density: 2.34 g/cm³ (20 °C) (lit.)
Storage Temperature: Ambient
MDL Number: MFCD00011401
CAS Number: 7778-77-0
EINECS: 231-913-4

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Specification Test Results

Assay 99.5 - 101.0 %
pH (10 %, 20°C) 4.1 - 4.5
Absorbance at 210 nm Max. 0.1
Absorbance at 220 nm Max. 0.06
Absorbance at 230 nm Max. 0.04
Absorbance at 300 nm Max. 0.02
Absorbance 500 nm Max. 0.02
Appearance of the solution (c=10%) complying
pKa (25 °C) (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)


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