How are synthetic indicators like methyl orange, litmus papers etc are prepared?
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Methyl orange indicator is prepared as follows:
Sulfanilic acid is dissolved in dil.aq. acid and Sodium nitrite is added.This produces diazonium salt.
Litmus paper are made made up of extracts from lichens and from several dyes.
Sulfanilic acid is dissolved in dil.aq. acid and Sodium nitrite is added.This produces diazonium salt.
Litmus paper are made made up of extracts from lichens and from several dyes.
vshivakumar16:
yep boy but all the chemicals need to be extracted from some ore.
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