一、化学名：磷酸三钠
二、分子式：Na3PO4，Na3PO4·H2O ，Na3PO4·12H2O
三、分子量：无水物163.94;一水合物 181.96, 十二水物：380.18
四、CAS：无水物：7601-54-9;十二水物：10101-89-0
五、性能：粉末或结晶性颗粒或晶体。溶于水，不溶于不机溶剂;十二水物在212℃以上时失去十二个结晶水而成无水物(Na3PO4)。水溶液呈碱性，对皮肤有一定的侵蚀作用。
六、用途：缓冲剂，乳化剂，抗结剂，抗氧化增效剂，营养增补，金属螯合剂。
七、包装：内衬聚乙烯塑料袋.外套复合塑料编织袋，每袋净重25千克。
八、贮存与运输 ：本品应密封贮存于干燥通风的仓库中，防止受潮、受热，与有害有毒物品隔离堆放。运输装卸时应轻装轻放。防止包装破损。
质量指标 | Specification | GB
25565-2010 |
Na3PO4（以灼烧干基计） ,w/% ≥ Na3PO4·H2O ,w/% ≥ Na3PO4·12H2O, w/% ≥ | Anhydrous Monohydrate Dodecahydrate | 97.0 |
重金属（以Pb计）,mg/kg ≤ | Heavy
Metals | 10 |
铅（Pb）,mg/kg ≤ | Pb | 4 |
氟化物（以F计）,mg/kg ≤ | Fluorides(F) | 50 |
水不溶物,w/% ≤ | Insoluble
In Water | 0.2 |
pH（10g/L 溶液） | pH
Value | 11.5~12.5 |
砷（As）, mg/kg ≤ | As | 3 |
灼烧减量, w/% | （Na3PO4）
≤ | Loss
On Ignition | 2.0 |
（Na3PO4·H2O） | 8-11 |
（Na3PO4·12H2O） | 45~57 |
1.Chemical Name: trisodium phosphate
2.Molecular Formula: Na3PO4 ,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 to white crystal , powder or crystalline
powder. It's odorless, easily soluble in water but insoluble in ethanol.
6.Usage: In food processing industry, it is used as buffering agent,
emulsifier, anti-caking agent, antioxidant additive, nutrition supplement, metal
chelating agent.
7.Packing: It is packed with polyethylene bag as liner and a compound
plastic woven bag as the outer layer. The net weight of each bag is 25kg.
8.Storage and Transport: It should be stored in a dry and ventilating
warehouse, kept away from moisture and heat, unload with care as to avoid damage
to packing. Furthermore, it should be stored separately from poisonous
substances.
