DSP – Disodium Phosphate Na2HPO4 anhydrous / dihydrate / dodecahydrate

Short Description:

Product Name: Disodium Phosphate/DSP

CAS No.: 10039-32-4

Molecular Formula: H25Na2O16P

Molecular Weight: 358.14

Melting Point: 35 °C

PH: 9.0-9.3 (25℃, 50mg/mL in H2O)

Density: 1,52 g/cm3

Function: Humectants

Product Detail


Product Tags

1. Product Description 

It is white or colorless rhombic crystalline or prismatic crystal. It’s easily soluble in water, but insoluble in ethanol. The relative density is 1.63 and melting point is 34.6℃. If heated to 180℃, it may lose crystal water and convert to anhydrous.

2. Certificate of Analysis

Specification GB 25568-2010 FCC V
Assay(Na2HPO4),w/% ≥ 98.0 ≥ 98.0
Arsenic(As),ppm ≤ 3 ≤ 3
Heavy metal(Pb),ppm ≤ 10 ≤ 10
Lead(Pb),ppm ≤ 4
Fluorides,ppm ≤ 50 ≤ 50
Insoluble Substances,w/% ≤ 0.2 ≤ 0.2
Loss on drying     w/% Na2HPO4 ≤ 5.0 ≤ 5.0
Na2HPO4·2H2O 18.0~22.0 18.0~22.0
Na2HPO4·12H2O ≤ 61.0

3. Application

In food industry, it is used as agent for baking to avoid oxidation stain and as emulsifier in dairy product to prevent egg white from solidification. It is also used as emulsifier and chelating agent for solid drinks.

4. Package

25Kg, 50Kg, 1000kg bag

5. Storage

It should be stored in a dry and ventilating warehouse, kept away from moisture and heat. Furthermore, it should be stored separately from poisonous substances; unload with care so as to avoid damage to packing.  

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