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Chemistry

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Oxalic acid dihydrate

分子式:C2H2O4.2H2O

分子量:126.07

外觀:無色結(jié)晶。在溫?zé)?、干燥空氣中風(fēng)化。溶于水、乙醇。

含量(C2H2O4.2H2O)不少于 99.5%
雜質(zhì)最高含量(指標以%計)
澄清度試驗 合格
水不溶物 0.005
灼燒殘渣(以硫酸鹽計) 0.02
氯化物(Cl) 0.002
總氮量(以N計) 0.002
硫酸鹽(SO4) 0.002
鈣(Ca) 0.003
鐵(Fe) 0.0005
重金屬(以Pb計) 0.0004
易碳化物質(zhì) 合格

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