POTASSIUM PHOSPHATE DIBASIC ANHYDROUS Extra Pure

POTASSIUM PHOSPHATE DIBASIC ANHYDROUS Extra Pure

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Category: Inorganic Phosphates

Description
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Description

Confirms to BP, USP
Dipotassium hydrogenphosphate, Dipotassium phosphate

Article No.	05429	Grade	Extra Pure
Purity	98%	CAS No.	7758-11-4
Molecular Formula	K₂HPO₄	Molecular Weight	174.18
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 (acidimetric; on dried basis)	98 – 100.5%
pH (10% solution in water)	8.5 – 9.6
Appearance of solution	Passes test
Insoluble matter in water	Max 0.2%
Carbonate	Passes test
Chloride (Cl)	Max 0.02%
Fluoride (F)	Max 0.001%
Sulphate (SO4)	Max 0.1%
Heavy metal (as Pb)	Max 0.001%
Iron (Fe)	Max 0.001%
Arsenic (As)	Max 0.0002%
Sodium (Na)	Max 0.5%
Potassium hydrogen phosphate (KH2PO4)	Max 3.0%
KMnO4 reducing matter (as O)	Max 0.04%
Loss on drying (at 130°C)	Max 1%

Packings

500 g	00500
25 Kg	0025K
50 Kg	0050K

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