1、Chemical Name: Monosodium Phosphate
2、Molecular Formula: NaH2PO4 ; NaH2PO4·H2O ; NaH2PO4·2H2O
3、Molecular Weight: Anhydrous:120.01 ; Monohydrate:138.01 ; Dihydrate:156.01
4、CAS: Anhydrous:7558-80-7 ; Monohydrate:10049-21-5 ; Dihydrate:13472-35-0
5、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 its’ own crystal water and convert to monohydrate salt. When heated up to 100℃, it’ll lose
crystal water and change to anhydrous substances, which will become Sodium Metaphosphate if it
continues to be heated.
6、Usage: In food industry, it is used as buffering, character improving agent, emulsifier, nutrition supplement, antioxidant additive, brine penetrable agent, sugar clarifier, stabilizer, coagulant and fowl scalding agent.
7、Packing: It is packed with polyethylene bag as inner layer and a compound plastic woven bag as outer layer. The net weight of each bag is 25kg.
8、Storage and Transport: It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
| Specification | GB 1886.336-2021 | FCC VII | |
| Content (On dry basis),w/% | 98.0-103.0 | 98.0-103.0 | |
| pH value (10g/L Solution ) | 4.1-4.7 | 4.1-4.7 | |
| Insoluble substances,w/% ≤ | 0.2 | 0.2 | |
| Heavy metal(as Pb),mg/kg ≤ | 10 | ———— | |
| Lead(Pb),mg/kg ≤ | 4.0 | 4 | |
| Arsenic(As),mg/kg ≤ | 3.0 | 3 | |
| Fluorides (as F),mg/kg ≤ | 30.0 | 50 | |
| Loss on drying,w/% | NaH2PO4 ≤ | 2.0 | 2.0 |
| NaH2PO4·H2O | 10.0-15.0 | 10.0-15.0 | |
| NaH2PO4·2H2O | 20.0-25.0 | 20.0-25.0 | |