我想問何配制Cu(OH)2
要係放一日都唔怕變黑戈隻﹗
我需要配料，同埋過程....
仲有點解佢會變黑的原因都需要﹗
如何製造Cu(OH)2溶液？﹗
2007-03-01 9:26 pm
回答 (2)
2007-03-02 9:16 am
✔ 最佳答案
用強alkila同銅化合物溶液混合強alkila例子有KOH氫氧化鉀,NaOH氫氧化鈉等
銅化合物溶液例子有CuNO3硝酸銅溶液,CuSO4硫酸銅溶液等
記住要係溶液先得,氧化銅等不溶水的銅化合物就唔得
將銅化合物溶液加入強alkila中....他們會產生化學反應
以硫酸銅和氫氧化鉀為例
CuSO4(aq) + 2KOH(aq) -> Cu(OH)2(s) + K2SO4(aq)
藍色的硫酸銅溶液加入透明的氫氧化鉀溶液便會生成藍色固體沈澱物<<氫氧化銅>>和透明的硫酸鉀
至於為何會變黑....係可能因為加熱過度令氫氧化銅變成黑色的氧化銅
2007-03-02 01:17:27 補充：
sor...中文唔好硫酸銅,氫氧化銅,氧化銅, 應修改做硫酸銅(ll),氫氧化銅(ll),氧化銅(ll)先岩
2007-03-02 2:55 am
I must tell you that Cu(OH)2 is not soluble in water.
I can tell you how to make Cu(OH).
The things you need are CuSO4 (Copper (II) sulphate) and NaOH (Sodium hydroxide)
You just poor the sodium hydroxide to the copper (II) sulphate solution. Some blue precipitate should be formed and they are copper(II) hydroxide.
CuSO4+ 2NaOH ----------- > Cu(OH)2 + Na2SO4
I can tell you how to make Cu(OH).
The things you need are CuSO4 (Copper (II) sulphate) and NaOH (Sodium hydroxide)
You just poor the sodium hydroxide to the copper (II) sulphate solution. Some blue precipitate should be formed and they are copper(II) hydroxide.
CuSO4+ 2NaOH ----------- > Cu(OH)2 + Na2SO4
參考: chem knowledge
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