Industrial grade Disodium hydrogen phosphate 97%

Disodium hydrogen phosphate 1.Purity:97% 2.Industrial grade DSP 3.CAS No.:7558-79-4 4.White or colorless crystal or powd

1.Property:

Disodium hydrogen phosphate  is colorless monoclini crystal or white powder. Relative density 1.52, melting point 34.6°C, refractive rate 1.432 (20°C). Soluble in water, the aqueous solution is alkali, PH value of 1% aqueous solution is 8.8-9.2; insoluble in alcohol. Weathering in the air. Lose all the water of crystallization and turn to sodium pyrophosphate anhydrousif heated to 250°C.

2.Packing photo and instruction:

Disodium hydrogen phosphate (DSP) for industry use should be packed with the two layer lined polyethylene film, the exterior bag is plastic woven bag; net weight 25kg o r 40kg per bag. The interior and exterior bag should be closed sealed. In case of any special requirement, negotiation is required.

3.Specification

Executive standard: HG/T 2965-2009Quality standard:  

Item	Index
sodium hydrogen phosphate (Na2HPO4·12H2O),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

4.Usage:

Used as fire-proofing agent for fabric, wood and paper, as glaze, welding flux and used in electroplating, etc.

5.Properation:

Prepared by sodium carbonate and phosphoric acid.

6.Remarks:

Weathering in the air, lose water of crystallization and turn to anhydrous substance at 100°C. Decompose to sodium pyrophosphate anhydrous at 250°C.

7.Transportation and storage:

 Avoid rain and sunlight during the transporation. Please keep in dry and ventilated place and equipped with under layer to prevent damp

Industrial grade Disodium hydrogen phosphate 97%