Fluka

Potassium phosphate monobasic

SKU

04243

Meets analytical specification of NF, Ph. Eur., E340, Anhydrous, 98-100.5% (calc. to the dried substance)

Synonym(s)

Monopotassium phosphate; Potassium dihydrogen phosphate; prim.-Potassium phosphate

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General Information:

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Brand Fluka	CAS Numbers (All) 7778-77-0	EC Number 231-913-4	Linear Formula KH₂PO₄	MDL Number MFCD00011401
Molar Mass 136.09 g/mol	Synonyms Monopotassium phosphate; Potassium dihydrogen phosphate; prim.-Potassium phosphate

Property	Value
assay (calculated to the dried substance)	98.0 - 100.5 %
loss on drying (130°C)	Max. 1.0 %
loss on drying (105°C, 4 h)	Max. 1.0 %
water insoluble matter	Max. 0.2 %
pH (5 %, 20°C)	4.2 - 4.5
arsenic (As)	Max. 1 ppm
cadmium (Cd)	Max. 1 ppm
copper (Cu)	Max. 0.002 %
iron (Fe)	Max. 10 ppm
mercury (Hg)	Max. 1 ppm
sodium (Na)	Max. 0.1 %
lead (Pb)	Max. 1 ppm
zinc (Zn)	Max. 0.002 %
heavy metals (as Pb)	Max. 10 ppm
chloride (Cl)	Max. 10 ppm
fluoride (F)	Max. 10 ppm
sulfate (SO₄)	Max. 200 ppm
kMnO₄ reducing matter (as O)	Max. 0.04 %
appearance of the solution	complying
residual solvents	complying

Property	Value
Boiling Point/Range	Decomposes on heating
Certification	Ph. Eur., NF, E340
Color	Colorless
Density	2.34 g/cm3 (20 °C)
Flashpoint	Not applicable
Form	Crystalline
Grade	Reagent Grade
Incompatible Materials	Strong acids and strong bases
Lower Explosion Limit	Not applicable
Melting Point/Range	253 °C
Partition Coefficient	No data available
Purity Percentage	98.00
Purity Details	98.00-100.50%
Solubility in Water	220 g/l (20 °C)
Upper Explosion Limit	Not applicable
Vapor Pressure	No data available
Viscosity	No data available
pH-Value	4.2-4.5 (20 °C)
Storage Temperature	Ambient

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