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磷酸二氫鈉(MSP)

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產品詳情

磷酸二氫鈉(MSP)
化學式:NaH2PO4.2H2O   
執行標準:HG/T2965-2000 
性狀:無水磷酸二氫鈉為白色粉末,熔點為190℃,二水物為白色粒狀結晶,相對密度1.915,熔點57.40℃;均易溶于水,不溶于有機溶劑,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、營養劑等。
包裝:內塑外編,每袋凈重25 Kg50 Kg 。
技術指標(見下表):


序號
指標名稱
 
二水物
NaH2PO4.2H2O
 
 
工業級
食品級
1
主含量 %
 
 
98.0
98.0
2
五氧化二磷(P2O5)%
 
 
44.6
44.6
3
PH值(1%水溶液)
 
 
4.2-4.8
4.2-4.8
4
重金屬(以Pb計)%
 
 
 
0.001
5
砷(以As計)%
 
 
 
0.0003
6
氟化物(以F計)%
 
 
 
0.005
7
水不溶物%
 
 
0.1
0.1


 
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