Description
1.Chemical name: Monosodium Phosphate2.M. F.: NaH2PO4 , NaH2PO4·H2O, NaH2PO4·2H2O3.M. W.: Anhydrous: 119.98; Monohydrate:138.01; Dihydrate:156.014.Physical properties: White rhombic crystal or white crystal powder, easily soluble in water, almost insoluble in ethanol. Its solution is acidic.
5.Quality standard: (GB1886.336-2021,FCC-V,E 339 (i) )
Name of index | GB1886.336-2021 | FCC-V | E 339 (i) |
Monosodium Phosphate NaH2PO4 (on dried material),% | 98.0-103.0 | 98.0-103.0 | ≥97 |
P2O5(on the anhydrous basis) ,% | - | - | 58.0-60.0 |
Identification | - | - | Positive tests for sodium and for phosphate |
Water Insoluble ,≤% | 0. 2 | 0. 2 | 0.2 |
Arsenic (As), ≤% | 0.0003 | 0.0003 | 0.0001 |
Heavy Metal (as Pb) ,≤% | 0.001 | - | - |
Pb ,≤% | 0.0004 | - | 0.0001 |
Cadmium , ≤% | - | - | 0.0001 |
Mercury , ≤% | - | - | 0.0001 |
Fluoride (as F ),≤% | 0.003 | 0.005 | 0.001 |
PH (1% aqueous solution) | 4.1-4.7 | - | 4.1-5.0 |
Loss on Drying NaH2PO4 ,≤% | 2.0 | 2.0 | 2.0 |
Loss on Drying NaH2PO4·H2O,% | 10.0-15.0 | 10.0-15. 0 | ≤15.0 |
Loss on Drying NaH2PO4·2H2O,% | 20.0-25.0 | 20.0-25.0 | ≤25 |
6,Usage: In food industry, it is used as quality improver and emulsifier, mainly applied to cheese, drinks and jelly.7,Packing: In 25kg composite plastic woven/paper bag with PE liner.8,Storage and transport: It should be stored in a dry, ventilative and clean warehouse; kept away from moisture and heat, and stored separately from poisonous substances. Handled with care, so as to avoid damage to the packing bags.