磷酸二氫鈉Mono Sodium Phosphate(MSP)
化學(xué)式： NaH2PO4.nH2O（n=0、2）
執(zhí)行標(biāo)準(zhǔn)： HG/T2767-1996
性狀：
無(wú)水磷酸二氫鈉為白色粉末，熔點(diǎn)為190℃，二水物為白色粒狀結(jié)晶，相對(duì)密度1.915，熔點(diǎn)57.40℃；均易溶于水，不溶于***，在空氣中吸潮。
用途：
用于鍋爐水處理、酸度緩沖劑、洗滌劑、制焙粉、云母片砌合、染料助劑，制革、電鍍等。也是制食品磷酸二氫鈉、酸式焦磷酸鈉和六偏磷酸鈉的原料。在食品和飲料中作緩沖劑、乳化劑、營(yíng)養(yǎng)劑等。
包裝：
內(nèi)塑外編，每袋凈重25、50、1000Kg，貯于通風(fēng)干燥處。
技術(shù)指標(biāo)
|
序號(hào) |
指標(biāo)名稱(chēng) |
無(wú)水物 |
二水物 |
||
|
工業(yè)級(jí) |
食品級(jí) |
工業(yè)級(jí) |
食品級(jí) |
||
|
1 |
外觀 |
白色粉末 |
|
白色粒狀晶體 |
|
|
2 |
主含量%≥ |
98.0 |
98.0 |
98.0 |
98.0 |
|
3 |
***(以P2O5計(jì))%≥ |
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計(jì)）%≤ |
|
0.001 |
|
0.001 |
|
6 |
***（以As計(jì)）%≤ |
|
0.0003 |
|
0.0003 |
|
7 |
氟化物（以F計(jì)）%≤ |
|
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 |