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
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⤋