PRODUCT

Disodium hydrogen phosphate

Disodium hydrogen phosphate
Cas No.:7558-79-4
Chemical Formula: Na2HPO4·12H2O

Overview

Product Name: Disodium hydrogen phosphate

Cas No.:7558-79-4

Chemical Formula: Na2HPO4·12H2O


PRODUCT DESCRIPTION

It is white crystalline powder. It's easily soluble in water, but insoluble in ethanol. The relative density is 1.63 and  melting point is 34.6ºC. If heated to 180 ºC, it may lose crystal water and convert to anhydrous.


PRODUCT USAGE

1、Used as analytical reagent and pH reference reagent

2、Used as industrial water treatment agent, printing and dyeing detergent, quality improver, antibiotic culture agent, biochemical treatment agent, etc

3、Used as food quality improver

4、Used as flame retardant for wood, paper and fabric, glaze flux and welding flux, mordant for dyeing, hydrogen peroxide bleaching stabilizer, boiler softener, etc

5、It is used as analytical reagent, buffer, water softener, fire retardant in printing and dyeing industry, and also used for fabric weight gain, etc

6、Used as flame retardant for fabric, wood and paper, and weight increasing agent for silk. It is an auxiliary for manufacturing reactive dyes. Replace borax in welding and brazing.

7、Analytical reagent, buffer, softener, fire retardant for printing and dyeing industry, fabric weighting agent.

8、Analytical reagent, buffer, softener, fire retardant for printing and dyeing industry, fabric weighting agent. Calibrate instruments and devices; Evaluation method; Working standards; Quality assurance/quality control; other.


ItemIndex
sodium hydrogen phosphate   (以Na2HPO4·12H2O计),w/%         ≥97.0
Sulfate (Calculated by   SO4),w/%                                               ≤0.7
Chloride (Calculated by   Cl),w/%                                                  ≤0.05
Arsenic   (As),w/%                                                                        ≤0.005
Fluoride (Calculated by   F),w/%                                                    ≤0.05
Fe,w/%                                                                                           ≤0.05
Water insoluble   matter,w/%                                                          ≤0.05
   PH value (10g/L solution)9.0±0.2


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