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Sodium Dihydrogen Phosphate 99% AR Grade Reagent

Cas Number:13472-35-0
Formula: NaH2PO4•2H2O
Molar Mass:156.01
EC Number:231-449-2

Quantity:
  • AR
  • LABOR
  • 223402129

Sodium Dihydrogen Phosphate 99% AR Grade Reagent


Cas Number:13472-35-0

Formula: NaH2PO4·2H2O

Molar Mass:156.01

EC Number:231-449-2


Physicochemical properties:

Colorless crystal or white crystalline powder. Odorless.It will lose all of the water of crystallization at 100 ° C. It is soluble in water, and almost insoluble in ethanol, its aqueous solution is acidic. The pH of the 0.1 mol/L aqueous solution at 25 ° C is 4.5. The relative density is 1.915. The melting point is 60 ° C. The product also has a molecule of crystal water.


Usage:

Buffer. Softener. Production of sodium hexametaphosphate and sodium pyrophosphate. Determination of magnesium. A modified white medium is prepared in a single sports species.

Packing:

500g/25kg






Item of Analysis

Standard

Assay,%

99.0 min

pH(50g/L,25℃)

4.2~4.6

Transparency of solution

3 max

Insoluble in water,%

0.01 max

Chloride(Cl),%  

0.005 max

Sulfate(SO4),%

0.005 max

Nitrate(NO3),%

0.001 max

Ammonium(NH4),%

0.002 max

Arsenic(As),%

0.0002 max

Potassium(K),%

0.02 max

Iron(Fe),%

0.001 max



Not a hazardous substance or mixture.


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