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無機化學試劑
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    磷酸
詳細介紹

產品名稱:磷酸           級別:AR/CP

執行標準:GB/T 1282-2013

分子式:H3PO4

性狀:本試劑為無色、無嗅、黏稠液體,溶于水及醇。密度(20℃)約為1.69g/mL

危險特性:遇金屬反應放出氫氣,能與空氣形成爆炸性混合物。受熱分解產生劇毒的氧化磷煙氣。具有腐蝕性。

禁配物:強堿、活性金屬粉末、易燃或可燃物。


項  目

指 標

AR

CP

含量(H3PO4),W/%              ≥

85.0

85.0

色度/黑曾單位                ≤

25

25

揮發酸(以H+ 計)/(mmol/g) ≤

0.0002

0.0002

氯化物(CL),W/%            ≤

0.0003

0.0005

硫酸鹽(SO4),W/%              ≤     

0.003

0.01

硝酸鹽(NO3),W/%              ≤

0.0005

0.0005

砷(As), W/%                   ≤

0.00005

0.0001

鐵(Fe),W/%                ≤

0.002

0.002

鈉(Na), W/%                  ≤

0.05

0.06

鉀(K), W/%                   ≤

0.005

0.006

錳(Mn), W/%                  ≤

0.0002

0.0005

鎳(Ni), W/%                  ≤

0.0005

0.001

銅(Cu), W/%                  ≤

0.0005

0.001

鋅(Zn), W/%                  ≤

0.001

0.001

鎘(Cd), W/%                  ≤

0.0005

0.0005

鉛(Pb), W/%                  ≤

0.001

0.001

還原物質(以H3PO3計)W/%     ≤

0.01

0.03

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