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Potassium Phosphate Dibasic Trihydrate 99% AR Grade Reagent

Cas Number:16788-57-1
Formula: K2HPO4•3H2O
Molar Mass:228.22
EC Number:231-834-5

Quantity:
  • AR
  • LABOR
  • 220102129

Potassium Phosphate Dibasic Trihydrate 99% AR Grade Reagent


Cas Number:16788-57-1

Formula: K2HPO4·3H2O

Molar Mass:228.22

EC Number:231-834-5


Physicochemical properties:

White granules or powder. Slightly hygroscopic. After burning, it becomes pyrophosphate. Soluble in water, 100g can be quickly dissolved in 67ml of cold water. Slightly soluble in ethanol, its aqueous solution is slightly alkaline to phenolphthalein.


Usage:

Buffer. It can be used as a buffer in antifreeze. Formulated in antibiotic medium. Pharmaceutical.


Packing:

500g/25kg






Item of Analysis

Standard

Assay,%

99.0 min

pH(50g/L,25℃)

8.9~9.4

Transparency of solution

to pass test

Insoluble in water,%

0.01 max

Chloride(Cl),%  

0.002 max

Sulfate(SO4) ,%

0.01 max

Nitrate(NO3),%

0.001 max

Sodium(Na),%

0.05 max

Magnesium(Mg) ,%

0.001 max

Iron(Fe),%

0.001 max

Arsenic(As),%

0.0001 max

Heavy metals(as Pb),%

0.001 max


Not a hazardous substance or mixture.


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