POTASSIUM PHOSPHATE DIBASIC ANHYDROUS For HPLC

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Category: HPLC Buffer Salts

Description
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Description

Dipotassium hydrogenphosphate; Dipotassium phosphate; sec.-Potassium phosphate

Article No.	05428	Grade	For HPLC
Purity	99%	CAS No.	7758-11-4
Molecular Formula	K₂HPO₄	Molecular Weight	174.2
H.S. Code	2835.2400	Shelf Life	60 Months

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Physical Properties

Physical state at 20 °C	Solid	Colour	White crystalline
Odour	Odorless	pH value	8.8
Melting point/ Freezing point [°C]	>465°C	Decomposition point [°C]	>465°C
Density [g/cm3]	2.338	Solubility in water [% weight]	1600 g/l (20°C)

Specifications

Appearance	White hygroscopic crystalline powder
Assay	Min 99%
Solubility (0.1 g/mL in water; 25°C)	Complete, colourless
pH (10% solution in water)	8.5 – 9.6
Loss on drying (at 105°C)	Max 1.0%
UV absorbance (10% in water)	–
at 230 nm	Max 0.15
at 240 nm	Max 0.12
at 250 nm	Max 0.11
at 310 nm	Max 0.05
at 500 nm	Max 0.02

Packings

500 g

00500

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