Sodium dihydrogen phosphate dihydrate 13472-35-0


Product Deail


Sodium dihydrogen phosphate dihydrate

Another name】Sodium dihydrogen phosphate.

【Description】Colorless crystal or white powder, deliquescent. Relative density 1.91, melting point 60℃, dehydration at 105℃, become anhydrous. Soluble in water, insoluble in ethanol.

Test items

AR

CP

Other

Assay(NaH2PO4•7H2O) /%

≥99.0

≥98.0

Custom

pH(50g/L,25℃)

4.2-4.6

4.2-4.6

Clarity of solution /#

≤3

≤5

Water insoluble /%

≤0.01

≤0.02

Chloride(Cl) /%

≤0.005

≤0.01

Sulfate(SO4) /%

≤0.005

≤0.01

Nitrate(NO3) /%

≤0.001

≤0.002

Ammonium(NH4) /%

≤0.002

Arsenic(As) /%

≤0.000 2

≤0.000 5

Potassium(K) /%

≤0.02

≤0.1

Iron(Fe) /%

≤0.001

≤0.005

Heavy metals (as Pb) /%

≤0.001

≤0.005

Ammonia sediments /%

≤0.01

≤0.02

Use】Used as an analytical reagent; Buffer; Water softener. Preparation of bacterial culture medium; Pharmaceutical excipients; Food additives; Feed additives.