磷酸二氢钠厂家
江苏科伦多生产供应的磷酸二氢钠现供应有食品级,医药级,化学试剂,规格分为无水物,二水合物。
我厂库存供应量充足,当天下单,当天发货,发货迅速,随货带化验单,送货单,运输过程中轻拿轻放,做好防护,确保外包装袋整洁干净。
一、化学名称:磷酸二氢钠
二、分子式:NaH2PO4,NaH2PO4·H2O,NaH2PO4·2H2O
三、分子量:无水物:120.01;一水物:138.01;二水物:156.01
四、CAS:无水物:7558-80-7;一水物:10049-21-5;二水物:13472-35-0
五、性能:无色柱状结晶。无臭。稍有潮解性。相对密度2.04。熔点60℃。易溶于水。不溶于乙醇。100℃以下加热,可溶于结晶水形成一水盐。加热至100℃失去结晶水而成无水物,继续加热则变为偏磷酸钠。
六、用途:缓冲剂;品质改良剂;乳化剂;营养增补剂;抗氧化增效剂;盐水穿透助剂;糖澄清剂;稳定剂;凝胶剂;禽类烫毛剂。
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:应贮在干燥,通风清洁的库房中.
质量指标 |
Specification |
食品级国标 |
含量(以干基计) , w/% |
Content (NaH2PO4) |
98.0-103.0 |
pH (10g/L溶液) |
pH-Value |
4.1-4.7 |
水不溶物 , w/% ≤ |
Insoluble In Water |
0.2 |
重金属(以Pb计),mg/kg ≤ |
Heavy Metal(Pb) |
10 |
铅 (Pb),mg/kg ≤ |
Pb |
4 |
砷(As),mg/kg ≤ |
As |
3 |
氟化物( 以F计),mg/kg ≤ |
Fluorides (F) |
50 |
干燥失重, w/% |
NaH2PO4 ≤ |
Loss On Drying |
2.0 |
NaH2PO4·H2O |
10.0-15.0 |
NaH2PO4·2H2O |
20.0-25.0 |
- Chemical Name:MONOSODIUM 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: 10049-21-7; Dihydrate: 13472-35-0
- Character:It is colourless 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 ethahol. If heated below 100℃, it can dissolve in crystal water and convert to monohydrate salt. When heated to 100℃, it will lose crystalwater and change its anhydrous substances, which will become sodium metaphosphate if it’s continue to be heated.
- Usage: 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.