Fluka

Aluminum potassium sulfate dodecahydrate

SKU

12623

Puriss., meets analytical specification of BP, European Pharmacopoeia, 99.0-100.5% (calc. on dry substance)

Synonym(s)

Alum; Potassium alum; Potassium aluminum sulfate dodecahydrate

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General Information:

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Brand Fluka	UNSPSC Code WS5690000	CAS Numbers (All) 7784-24-9	Linear Formula AlK(SO₄)₂ · 12H₂O	MDL Number MFCD00149143
Molar Mass 474.39 g/mol	RTECS Number 233-141-3	Synonyms Alum; Potassium alum; Potassium aluminum sulfate dodecahydrate

Property	Value
assay (calc. to the dried substance)	99.0 - 100.5 %
loss on drying	43.0 - 46.0 %
ammonium (NH4)	Max. 0.2 %
iron (Fe)	complying
arsenic (As)	Max. 0.0002 %
heavy metals (as Pb)	Max. 0.001 %
chloride (Cl)	Max. 0.005 %
appearance of the solution	complying

Property	Value
Boiling Point/Range	Not applicable
Color	Colorless
Density	1.75 g/cm3 (20 °C)
Flashpoint	Not applicable
Form	Crystalline
Grade	Reagent Pharmacopeia Salts
Incompatible Materials	Reactions with strong alkalies
Lower Explosion Limit	Not applicable
Melting Point/Range	92.5 °C
Partition Coefficient	No data available
Purity Percentage	99
Purity Details	99.0-100.5%
Solubility in Water	105 g/l (20 °C)
Upper Explosion Limit	Not applicable
Vapor Pressure	No data available
Viscosity	Not applicable
pH-Value	3.0-3.5 (20 °C)
Product Line	Puriss.
Storage Temperature	Ambient

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