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Disodium Hydrogen Phosphate Anhydrous 99% AR Grade Reagent

Cas Number:7558-79-4
Formula: Na2HPO4
Molar Mass:141.96
EC Number:231-448-7

Quantity:
  • AR
  • LABOR
  • 209102129

Disodium Hydrogen Phosphate Anhydrous 99% AR Grade Reagent


Cas Number:7558-79-4

Formula: Na2HPO4

Molar Mass:141.96

EC Number:231-448-7


Physicochemical properties:

White crystalline powder. It is easy to absorb moisture. It can absorb 2~7mol of water in a long time in the air. It is soluble in about 8 parts of water and insoluble in ethanol, The pH is 9.1 while 1% aqueous solution at 25 ° C. The minimum lethal dose (rat, abdominal cavity) is 1000mg/kg.


Usage:

Analytical reagents. Buffer. Softener. Printing and dyeing industry fire retardant. Fabric weighting agent.


Packing:

500g/25kg






Item of Analysis

Standard

Assay,%

99.0 min

pH(30g/L,25℃)

8.7~9.3

Transparency of solution

4 max

Insoluble in water,%

0.01 max

Loss on drying,%

0.2 max

Chloride(Cl),%

0.002 max

Sulfate(SO4) ,%

0.005 max

Nitrogen compounds(N) ,%

0.002 max

Arsenic(As),%

0.001 max

Iron(Fe),%

0.002 max

Heavy metals(as Pb),%

0.001 max



Not a hazardous substance or mixture.


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