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Is sulphuric acid a bleaching agent??? If yes, why???

thx a lot

2006-12-25 13:48:12 · 3 個解答 · 發問者 tse 1 in 科學 化學

3 個解答

Sulphuric acid當然唔係bleaching agent啦~
其實係 SO2 加入水後,出左SO3**,即係Sulphurous acid .

SO3** + H2O => SO4**+ 2H" +2e*

Bleaching Properties

SO3** + dye(colour) => SO4** + (dye - O /colourless)

但係e個reaction係不持久的(not permanent)

2006-12-25 17:44:29 · answer #1 · answered by Max 2 · 0 0

Sulphuric acid is not a bleaching agent...
Sulphurous acid and sulphur dioxide are bleaching agents...
They are strong reducing agent...
The dye is reduced and become colourless...

2006-12-25 17:10:29 · answer #2 · answered by ? 1 · 0 0

No, sulphuric acid is NOT a bleaching agent.

2006-12-25 14:15:12 · answer #3 · answered by Uncle Michael 7 · 0 0

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