磷酸二氢钠Mono Sodium Phosphate(MSP)
化学式： NaH2PO4.nH2O（n=0、2）
执行标准： HG/T2767-1996
性状：
无水磷酸二氢钠为白色粉末，熔点为190℃，二水物为白色粒状结晶，相对密度1.915，熔点57.40℃；均易溶于水，不溶于***，在空气中吸潮。
用途：
用于锅炉水处理、酸度缓冲剂、洗涤剂、制焙粉、云母片砌合、染料助剂，制革、电镀等。也是制食品磷酸二氢钠、酸式焦磷酸钠和六偏磷酸钠的原料。在食品和饮料中作缓冲剂、乳化剂、营养剂等。
包装：
内塑外编，每袋净重25、50、1000Kg，贮于通风干燥处。
技术指标
|
序号 |
指标名称 |
无水物 |
二水物 |
||
|
工业级 |
食品级 |
工业级 |
食品级 |
||
|
1 |
外观 |
白色粉末 |
|
白色粒状晶体 |
|
|
2 |
主含量%≥ |
98.0 |
98.0 |
98.0 |
98.0 |
|
3 |
***(以P2O5计)%≥ |
58.0 |
58.0 |
44.6 |
44.6 |
|
4 |
PH值（1%水溶液） |
4.2-4.8 |
4.2-4.8 |
4.2-4.8 |
4.2-4.8 |
|
5 |
***（以Pb计）%≤ |
|
0.001 |
|
0.001 |
|
6 |
***（以As计）%≤ |
|
0.0003 |
|
0.0003 |
|
7 |
氟化物（以F计）%≤ |
|
0.005 |
|
0.005 |
|
8 |
水不溶物%≤ |
0.1 |
0.1 |
0.1 |
0.1 |
Mono Sodium Phosphate(MSP)
Molecular formula: NaH2PO4. nH2O (n=0,2)
Standard executed: GB1908-86
CAS Number: 7558-80-7
Properties:
Anhydrous products is white powder, and melting point is at 190 ℃.Dihydrate products is colorless crystal, relative density at 1.915 g/cm3, melting point at 57.4℃. All easily soluble in water, but not in organic solution.
Uses:
Used for water treatment to boiler, also as buffering agent to acidity, detergent, cleaning agent, dyeing flux, for tanning and electroplating. For food additive it is mainly used as buffering agent, emulsification agent, nourishment, etc.
Packing and storage:
In 25kg, 50kg, 1000kg net bags, store at a cool, dry and well ventilated place.
Guaranteed Technical Specificati*** :
|
NO |
Specificati*** |
NaH2PO4 (Anhydrous) |
NaH2PO4. 2H2O (Dihydrate) |
||
|
Industrial Grade |
Food Grade |
Industrial Grade |
Food Grade |
||
|
1 |
Main Contents % ≥ |
98 |
98 |
98 |
98 |
|
2 |
Phosphorus pentoxide % ≥ |
58.0 |
58.0 |
44.6 |
44.6 |
|
3 |
PH value of 1% solution |
4.2-4.8 |
4.2-4.8 |
4.2-4.8 |
4.2-4.8 |
|
4 |
He***y metals, as Pb % ≤ |
|
0.001 |
|
0.001 |
|
5 |
Arsenic, as As % ≤ |
|
0.0003 |
|
0.0003 |
|
6 |
Fluoride as F % ≤ |
|
0.005 |
|
0.005 |
|
7 |
Water insoluble % ≤ |
0.10 |
0.10 |
0.10 |
0.10 |