Potassium tartrate dibasic hemihydrate

SKU

25510H

Meets analytical specification of DAC, E336, 99-102% (perchloric acid titration)

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Brand

Fluka

CAS Numbers (All)

921-53-9

Molar Mass

235.28 g/mol

Property	Value
Assay (titration with Perchloric acid)	99.0 - 102.0 %
Assay (calculated to the dried substance)	Min. 99 %
Loss on drying (150 °C, 4 h)	Max. 4 %
pH (1 %,20°C)	7 - 9
Acid. or alk. react. impurities	complying
Ammonium (NH₄)	Max. 0.001 %
Arsenic (As)	Max. 3 ppm
Calcium (Ca)	Max. 100 ppm
Copper (Cu)	Max. 0.001 %
Iron (Fe)	Max. 20 ppm
Mercury (Hg)	Max. 1 ppm
Lead (Pb)	Max. 2 ppm
Zinc (Zn)	Max. 0.001 %
Heavy metals (as Pb)	Max. 10 ppm
Chloride (Cl)	Max. 0.05 %
Oxalate (as Oxalic acid)	Max. 100 ppm
Sulfate (SO₄)	Max. 0.1 %
Appearance of the solution	complying

Property	Value
Boiling Point/Range	No data available
Color	White
Density	No data available
Flashpoint	Not applicable
Form	Crystalline
Grade	Reagent Grade
Incompatible Materials	Strong acids and oxidizing agents
Lower Explosion Limit	Not applicable
Melting Point/Range	No data available
Solubility in Water	Completely soluble
Upper Explosion Limit	Not applicable
Viscosity	Not applicable
pH-Value	7.0-8.5 at 235.3 g/l (25 °C)
Product Line	Puriss.
Storage Temperature	Ambient

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