Tetrasodium ethylenediamine acetic acid/0.20 It is usually preferable for the manufacturer to undertake the neutralization of the dodecylbenzene sulphonic acid,since this material can be purchased commercially at around a 95% concentration and is readily neutralized by the addition of a sodium hydroxide solution. a typical basic formula using an alkylarylsulfonic acid and lauryl ether sulfate mixture is: FORMULA No. Water/q.s. 100 Soluble green dyestuff soln./q.s. Perfume/0.20 Water/to 100 Sodium lauryl ether sulfate/8 Sodium xylene sulfonate/8 Sodium dodecylbenzene sulphonate/26 Dodecylbenzene sulphonic acid 95% active/13.72 Sodium hydroxide soln. 47%/3.53 Lauryl ether sulphate 27%/15.67