About sodium (急10點 )

2006-12-13 7:33 am
Where can we find sodium on earth?
How we make sodium from other substances?
What is sodium like?
What sodium use for in industries and daily life

回答 (2)

2006-12-14 1:29 am
Na呢,可以係海水中搵,或者礦石,佢地用compound形式出現
將Na化合物 高溫燒至melting point, 之後 用electrolysis extract 出黎
sodium 係一種silvery surface ge metal, 平時放係空氣之中, 會同O2 react, 會變到暗左色
sodium可以做table salt, 即係NaCl, 又或者做NaOH, 工業用的 哥士的!
參考: me
2006-12-13 7:41 am
pure sodium can be extract from saturated sodium compond solution though electrolysis by the use of mecury electrode


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