Preparation of Sodium Alkyl Sulphate
Stage 1: Sulphonation of alcoholThe long chain alcohol is reacted with concentrated sulphuric acid to form alkyl sulphonic acid.
Stage 2: NeutralizationThe alkyl sulphonic acid is then neutralised sodium hydroxide solution to produce sodium alkyl sulphate salt, which is detergent .
Preparation of Sodium Alkyl Benzene Sulphonate
Stage 1: AlkylationThe long chain alkene is reacted with benzene to form alkylbenzene.
Stage 2: SulphonationSulphonation of alkylbenzene:
The alkylbenzene is reacted with concentrated sulphuric acid to form
alkylbenzene sulphonic acid.
Stage 3: Neutralization
The alkylbenzene sulphonic acid is then neutralised sodium hidroxide solution to produce
alkylbenzene sulphonate salt, which is detergent.