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Application of p-toluene sulphonic acid

Pere-toluene sulfonic acid is a strong organic acid, the acid stronger than benzoic acid millions of times.This acid is unique in that it is usually the case for a solid, convenient. Another advantage is that compared with snorganic acid not oxidizing, can in some cases replace the inorganic acid.
1.Catalyst.
In a wide range of reactions, including specific enolase, build, Acetal, dehydration, alkylation, removal of polymer reaction of alkyl, Beckmann rearrangement, aggregate reconciliation, it's as effective as sulfuric acid, but the effect is better than sulfuric acid because it does not cause side effects, such as oxidation or coking, the resulting products of high purity, is lighter.
2.Organic synthesis
Commonly used p-toluene sulfonic acid solution 65% manufacturing toluene sulfonamide, saccharin, chloramine , p-toluene sulfonyl chloride and sulfone Dichloro amide. The largest use of p-toluenesulfonic acid is used in the production of p-cresol.
3.Stabilizer
In industry, often used with p-toluene sulfonic acid preparation of p-toluene sulphonic acid zinc and zinc oxide. Acrylonitrile and methyl acrylate and vinyl chloride or acrylonitrile copolymer process, can be used with p-toluene sulphonic acid as stabilizer, the dosage of 0.2%.
With p-toluene sulfonic acid is also used for amino-phenolic, epoxy and plastic slide, furniture paints, dyes, adhesives, synthetic anti-diabetic medicines and anti-stress additive in bath, as to dimethyl formamide solvent of an-VDC copolymer and acrylic appliance introduced in one step, as a stable demand for high quality with p-toluene sulphonic acid is growing rapidly.