Chemical Name:
Monosodium Phosphate Sodium Dihydrogen phosphate
Molecular Formula:
NaH2PO4, NaH2PO4·H2O, NaH2PO4·2H2O
Molecular Weight:
anhydrous: 120.01; Monohydrate: 138.01; Dihydrate: 156.01
CAS:
anhydrous: 7558-80-7; Monohydrate: 10049-21-5; Dihydrate: 13472-35-0
Character:
It is colorless column crystal, odorless, slightly deliquescence. The relative density is 2.04 and melting point is 60℃. It is easily soluble in water but insoluble in ethanol. If heated below 100℃, it can dissolve in crystal water and convert to monohydrate salt. When heated to 100℃, it will lose crystal water and change to anhydrous substances, which will become sodium metaphosphate if continue to be heated.
Uses:
In food industry, it is used as buffering, character improving agent, emulsifier, nutrition supplement, antioxidant additive, brine penetrable agent, sugar clarifier, stabilizer, coagulant, fowl scalding agent.
Packing:
It is packed with polyethylene bag as liner and a compound paper-plastic woven bag as the outer layer. The net weight of each bag is 25kg.
Quality index:
Quality index
GB25564-2010
FCCV
Assay%
98.0-103.0
PH value
4.1-4.7
--
Water insoluble matter ≤%
0.2
0.20
Heavy Metal≤%
0.001
Pb≤%
0.0004
---
As ≤%
0.0003
0.0003??
Fluoride(F)≤%
0.005
Loss on Dry,%
Anhydrous
≤2.0
Monohydrate
10.0-15.0
Dihydrate
20.0-25.0
