What is Resorcinol used for?

Resorcinol is the capital basic of an adhering arrangement acclimated in the annoy accomplishment activity and added fiber-reinforced elastic automated goods.
Adhesives formulated from resorcinol-formaldehyde resins or phenol-modified resorcinol-formaldehyde resins are the belief for copse bonding applications ambitious allowance temperature cure, structural integrity, and waterproof characteristics.
Resorcinol is an important actinic average in specialty chemicals manufacturing, such as ablaze screening agents acclimated to assure plastics from acknowledgment to ultraviolet light. Resorcinol is acclimated to accomplish dyestuffs, pharmaceuticals, blaze retardants, agronomical chemicals, fungicidal creams and lotions, atomic primers, antioxidants, a alternation extender for urethane elastomers, and a analysis to advance automated and actinic attrition of cardboard apparatus fabrics.
Applications
Medical
Used externally, it is an antibacterial and disinfectant, and is acclimated 5 to 10% in ointments in the analysis of abiding derma diseases such as psoriasis, hidradenitis suppurativa, and eczema of a sub-acute character. It is present in over-the-counter contemporary abscess treatments at 2% or beneath concentration, and in decree treatments at college concentrations. Weak, adulterated solutions of resorcinol (25 to 35 g/kg) are advantageous in abating the agog in erythematous eczema. A 2% band-aid acclimated as a aerosol has been acclimated with apparent aftereffect in hay agitation and in whooping cough. In the closing ache 0.6 mL of the 2% band-aid has been accustomed internally. It can be included as an anti-dandruff abettor in absterge or in sunscreen cosmetics. It has aswell been alive in the analysis of belly ulcers in doses of 125 to 250 mg in pills, and is said to be analgesic and haemostatic in its action. In ample doses, it is a poison, causing giddiness, deafness, salivation, sweating, and convulsions. It is aswell formed up in assertive antibacterial soaps. Monoacetylresorcinol, C6H4(OH)(O-COCH3), is acclimated beneath the name of euresol. Resorcinol is one of the capital alive capacity in articles like Resinol and Vagisil. Resorcinol is aswell an alive additive in assertive Clearasil products.
Chemical
Resorcinol is aswell acclimated as a actinic average for the amalgam of pharmaceuticals and added amoebic compounds. It is acclimated in the assembly of diazo dyes and plasticizers and as a UV cushion in resins.
An arising use of resorcinol is as a arrangement atom in supramolecular chemistry. The -OH groups on resorcinol anatomy hydrogen bonds to ambition molecules, captivation them in the able acclimatization for a reaction. Many such reactions are able to be agitated out in the solid state, thereby abbreviation or eliminating the use of solvents that may be adverse to the environment.
Resorcinol is an analytic reagent for the qualitative determinaion of ketoses.
Resorcinol is the starting actual for resorcinarene molecules and the initiating atomic advance styphnate (Reference: Army TM 9-1300-214, p. 7–12).
Resorcinol reacts with formaldehyde to anatomy a thermoset resin, which can anatomy the base of an aerogel.
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Applications of Resorcinol

Resorcinol (or resorcin) is a dihydroxy benzene. It is the 1,3-isomer of benzenediol with the formula C6H4(OH)2.
Properties
Resorcinol crystallizes from benzene as colorless needles that are readily soluble in water, alcohol, and ether, but insoluble in chloroform and carbon disulfide. It reduces Fehling’s solution and ammoniacal silver solutions. It does not form a precipitate with lead acetate solution, as the isomeric pyrocatechol does. Iron(III) chloride colors its aqueous solution a dark-violet, and bromine water precipitates tribromoresorcin. These properties are what give it its use as a colouring agent for certain chromatography experiments. Sodium amalgam reduces it to dihydroresorcin, which when heated to 150 to 160 °C with concentrated barium hydroxide solution gives γ-acetylbutyric acid (D. Vorlgnder); when fused with potassium hydroxide, resorcinol yields phloroglucin, pyrocatechol, and diresorcin. It condenses with acids or acid chlorides, in the presence of dehydrating agents, to oxyketones, e.g. with zinc chloride and glacial acetic acid at 145 °C it yields resacetophenone (HO)2C6H3~CO.CH3. With the anhydrides of dibasic acids, it yields fluoresceins. When heated with calcium chloride—ammonia to 200 °C it yields meta-dioxydiphenylamine. With sodium nitrite it forms a water-soluble blue dye, which is turned red by acids, and is used as an indicator, under the name of lacmoid. It condenses readily with aldehydes, yielding with formaldehyde, on the addition of catalytic hydrochloric acid, methylene diresorcin [(HO)C6H3(O)]2•CH2. Reaction with chloral hydrate in the presence of potassium bisulfate yields the lactone of tetra-oxydiphenyl methane carboxylic acid. In alcoholic solution it condenses with sodium acetoacetate to form 4-methylumbelliferone.
Applications
Medical
Used externally, it is an antiseptic and disinfectant, and is used 5 to 10% in ointments in the treatment of chronic skin diseases such as psoriasis, hidradenitis suppurativa, and eczema of a sub-acute character. It is present in over-the-counter topical acne treatments at 2% or less concentration, and in prescription treatments at higher concentrations. Weak, watery solutions of resorcinol (25 to 35 g/kg) are useful in allaying the itching in erythematous eczema. A 2% solution used as a spray has been used with marked effect in hay fever and in whooping cough. In the latter disease 0.6 mL of the 2% solution has been given internally. It can be included as an anti-dandruff agent in shampoo or in sunscreen cosmetics. It has also been employed in the treatment of gastric ulcers in doses of 125 to 250 mg in pills, and is said to be analgesic and haemostatic in its action. In large doses, it is a poison, causing giddiness, deafness, salivation, sweating, and convulsions. It is also worked up in certain medicated soaps. Monoacetylresorcinol, C6H4(OH)(O-COCH3), is used under the name of euresol. Resorcinol is one of the main active ingredients in products like Resinol and Vagisil. Resorcinol is also an active ingredient in certain Clearasil products.
Chemical
Resorcinol is also used as a chemical intermediate for the synthesis of pharmaceuticals and other organic compounds. It is used in the production of diazo dyes and plasticizers and as a UV absorber in resins.
An emerging use of resorcinol is as a template molecule in supramolecular chemistry. The -OH groups on resorcinol form hydrogen bonds to target molecules, holding them in the proper orientation for a reaction. Many such reactions are able to be carried out in the solid state, thereby reducing or eliminating the use of solvents that may be harmful to the environment. (see Green chemistry)
Resorcinol is an analytical reagent for the qualitative determinaion of ketoses (Seliwanoff’s test).
Resorcinol is the starting material for resorcinarene molecules and the initiating explosive lead styphnate (Reference: Army TM 9-1300-214, p. 7–12).
Resorcinol reacts with formaldehyde to form a thermoset resin, which can form the basis of an aerogel.
More about: Resorcinol sale
Read more: chemical materials