Facts about Sulphuric acid

2009-02-22 8:17 pm

How it is made
What it is used for
Interesting facts.....(Did you know that?)

Try not to use wikipedia please.....because I know how to use that too...

Thank you very much!

更新1:

this is actually for a chemistry project The main thing i want to know is its applications Please give as many applications as possible Thank you

回答 (2)

hongkei

2009-02-25 7:23 am

✔ 最佳答案

呢個係中四一個課程，
應該係差唔多中四最後哥幾課，
做H2SO4既方法叫contact process，
如果你未到中四呢，
我打咁多式都無咩用架啦，
總之就係用一Ｄ方法係sulphur/ zinc blende/iron pyite到拎出黎。

咁佢通常用黎整fertilizer，幫手做detergent啦。

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用戶122191

2009-02-23 4:12 am

heating sulphur in air
S+02 --> SO2

heating SO2 in air with V2O5 as catalyst and the temp. at around 400~500 degree
S02 + 0 2 ----> SO3

pass SO3 in concentrated sulphuric acid to form an oleum
SO3 + H2SO4 ----> H2S2O7

adding water in it
H2S2O7 + H2O ----> 2H2SO4

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