(Resorcinol  Usage 

  Manufacture of rubber products, wood adhesives, dyes, explosives, and cosmetics; in photography.




Resorcinol  description

    Resorcinol has bactericidal, fungicidal and anti-itching effect with the bactericidal effect being 1/3 of the phenol and also a low irritating and corrosive property. At low concentration, it can play the role promoting the regeneration of horny while having keratin exfoliation effect at high concentration. It is mainly used for rubber adhesives, plastics, synthetic resins, synthetic fibers, dyes, preservatives, anti-itch, anti-fungal agent, analytical reagent and can also be used to treat ringworm, eczema, seborrheic dermatitis, acne and psoriasis.


Resorcinol  Chemical Properties

    It is white needle-like crystal. It will become pink upon exposure to light and air or contact with iron. It has a sweet taste. It is soluble in water, ethanol, amyl alcohol, easily soluble in ether, glycerol, slightly soluble in chloroform, carbon disulfide as well as in benzene.


Resorcinol  Chemical Applications

   Resorcinol is an important raw material for organic synthesis. It is mainly used as the raw material of rubber adhesives, raw analysis reagents, drugs and preservatives, dyes, synthetic resin. For example, eosin is an important triphenylmethane dye with red dying which is mainly used for yarn dyeing. It is made from the following process: first generate its intermediate fluorescent yellow thorough the co-heating between resorcinol and phthalic anhydride in the presence of zinc chloride or concentrated sulfuric acid, then apply tetra-bromination to generate it. Eosin is commonly used to produce red ink, also be used as biological material such as the staining agent for microscopic examination. If the intermediate fluorescent yellow is subject to bromination in acetic acid solution, only di-bromination can occur; further co-heating with mercuric acetate can obtain mercurochrome (also known as red mercury bromine) which is an important antiseptic disinfectant. It is easily soluble in water with its 2% aqueous solution being the daily-used "red syrup" for disinfection. The alcohol and acetone solution of mercurochrome may also be used for skin disinfection. Put resorcinol and hexanoic acid for acylation reaction and further reduction can generate 4-n-hexyl hydroquinone which is also a kind of disinfectant. In medicine, it is also used as a topical anti-itch agent and a digestive agent of the intestinal tract.



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