POTASSIUM HYDROGEN PHTHALATE For HPLC

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Category: HPLC Buffer Salts

Description
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Description

KHP; Phthalic acid monopotassium salt, Potassium biphthalate; Potassium phthalate monobasic

Article No.	05371	Grade	For HPLC
Purity	99.5%	CAS No.	877-24-7
Molecular Formula	C₈H₅KO₄	Molecular Weight	204.22
H.S. Code	2917.3990	Shelf Life	60 Months

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Physical Properties

Physical state at 20 °C	Solid	Colour	White crystalline
Odour	Odorless	pH value	3.8 – 4.0 (5% aq. sol.)
Melting point/ Freezing point [°C]	295 – 300 °C	Density [g/cm3]	1.64
Solubility in water [% weight]	80 g/L @ 20°C

Specifications

Appearance	White crystalline powder
Assay	Min 99.5%
Filter test	In accordance
Solubility (100 mg/mL in water)	Complete, colourless
pH	3.5 – 5.0
UV absorbance (10% solution in water)
at 330 nm	Amax : <0.05
at 340 nm	Amax : <0.03
at 350 nm	Amax : <0.02
at 500 nm	Amax : <0.02

Packings

500 g

00500

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