1、Chemical Name: Trisodium Phosphate
2、Molecular Formula: Na3PO4 ; Na3PO4·H2O ; Na3PO4·12H2O
3、Molecular Weight: Anhydrous:163.94 ; Monohydrate:181.96 ; Dodecahydrate:380.18
4、CAS: Anhydrous:7601-54-9 ; Dodecahydrate:10101-89-0
5、Character: It is colorless or white crystal , powder or crystalline granule. It’s easily soluble in water but insoluble in organic solvent.The Dodecahydrate lose all crystal water and become Anhydrous when temperature rise to 212 ℃. solution is alkaline，slightly corrosion on skin.
6、Usage: In food processing industry, it is used as buffering agent, emulsifier, anti-caking agent, antioxidant additive, nutrition supplement and metal chelating 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.
| 质量指标 | Specification | GB 1886.338-2021 | FCC VII | ||
|
含量，w/% ≥
含量,w/% ≥
|
无水物 |
Content,w/% ≥
Assay,w/% ≥
|
Anhydrous | 97.0 | 97.0 |
| 一水物 | Monohydrate | ||||
| 十二水物 | Dodecahydrate | 90.0 | |||
| 重金属（以Pb计），mg/kg ≤ | Heavy metal (as Pb),mg/kg ≤ | 10 | ———— | ||
| 铅（Pb），mg/kg ≤ | Lead(Pb),mg/kg ≤ | 4.0 | 4.0 | ||
| 氟化物（以F计），mg/kg ≤ | Fluorides(as F),mg/kg ≤ | 50.0 | 50.0 | ||
| 水不溶物，w/% ≤ | Insoluble substances,w/% ≤ | 0.2 | 0.2 | ||
| pH值（10g/L溶液） | pH value (10g/L Solution ) | 11.5-12.5 | 11.5-12.5 | ||
| 砷（As），mg/kg ≤ | Arsenic(As),mg/kg ≤ | 3.0 | 3.0 | ||
| 灼烧减量，w/% | Na3PO4 ≤ | Loss on ignition,w/% | Na3PO4 ≤ | 2.0 | 2.0 |
| Na3PO4·H2O | Na3PO4·H2O | 8.0-11.0 | 8.0-11.0 | ||
| Na3PO4·12H2O | Na3PO4·12H2O | 45.0-57.0 | 45.0-57.0 | ||
