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Ethylenediaminetetraacetic acid

Ethylenediaminetetraacetic acid is an aminopolycarboxylic acid and a colorless, water-soluble solid. EDTA is mainly used to sequester metal ions in aqueous solution. In the textile industry, it prevents metal ion impurities from modifying colors of dyed products. In the pulp and paper industry, EDTA inhibits the ability of metal ions, especially Mn2+, from catalyzing the disproportionation of hydrogen peroxide, which is used in chlorine-free bleaching.

p-Toluenesulfonic acid monohydrate

p-Toluenesulfonic acid monohydrate is used as a catalyst in the synthesis of resveratrol, in oxane derivatives as an antimalarial agent, as substituted piperidine and unsymmetrical benzyl.p-Toluenesulfonic acid monohydrate acts as a catalyst in the preparation of 1,3,5-trisubstituted pyrazoles derivatives, selenated ketene dithioacetals, triazoloquinazolinone and benzimidazoquinazolinone derivatives.It also serves as an intermediate in the esterification and in reductive amination reactions.

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