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磷酸二氫銨(MAP)

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產品詳情

磷酸二氫銨(MAP)
別名:磷酸一銨
化學式:NH4H2PO4 
分子量:115.0 
執行標準:Q/CABY-001-92 
性狀:白色晶體或粉末,相對密度1.803,熔點190℃,易溶于水,微溶于醇,不溶于酮,1%水溶液PH值為4.5.空氣中穩定。
用途:主要用于木材、紙張、織物作防火劑,也用作防火涂料添加劑,干粉滅火劑等。在食品工業中用作發酵劑、營養劑等。也用于有機合成和冶金工業。
包裝:內塑外編,每袋凈重25 Kg、50Kg。
技術指標: (見下表)


序號
指標名稱
工業級
食品級
1
主含量(以NH4H2PO4 計)%
98.0
98.0
2
五氧化二磷(以P2O5 計)%
60.5
61.0
3
氮(以N計)%
11.8
11.8
4
PH
4.4-4.8
4.4-4.8
5
水份%
1.0
0.5
6
重金屬(以Pb計)%
-- 
0.001
7
砷(以As計)%
-- 
0.0003
8
氟化物(以F計)%
-- 
0.005
9
水不溶物%
0.20
0.10


 
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