Detailed information about bisphenol-A and phenol

- Industrial guidance - Dhiru Parekh

- Bisphenol-A is a key ingredient for polymers. Bisphenol-A is used in the manufacturing of epoxy phenoxy, polycarbonate, polysulfan, polyester resin, flame retardant, rubber chemical and fungicide products.

- Property :- White flakes, phenolic order, in soluble in water, soluble in carbon tetrachloride, boiling point 2200 C. Grade, melting point 1530 cm. Grade, esp. Gravity 1-195, (250 C grade, flash point 1750 F. (74.5 C grade).

- Derivation :- Phenol and acetone are treated with catalyzed SCL at 650 C. Bisphenol-A is obtained by a condensation reaction at room temperature.

- Specification :- Freezing Point 156.8, Free Phenol-ppm. 10-0, isomer-ppm. 50-100, Aryan-ppm.01.

A major market for bisphenol-A is for polycarbonate resins. Almost two-thirds of the demand is increasing. Polycarbonate is in increasing demand for optical media such as compact discs (CDs), CD-ROMs recordable CDs and digital discs (DVDs).

For optical media such as MP3 players and USB drives, the demand for polycarbonate is 8 to 9%. which is likely to increase by 5% per annum in the period up to 2011. Epoxy resins made from bisphenol-A are used in high performance coatings, electrical-electronic laminates, adhesive flooring and paving applications and composites. Word growth is 2 to 3 percent per year. Which is more used in Asian countries. China is at the forefront.

Large consumption of phenol for phenolic resins that are durable binders, adhesives, wood panels such as mineral wool insulation binders, automotive, construction industries, brake linings, foundry binders, insulation foam composites Growth is increasing at GDP level.

Nylon fiber engineering resins and films in the consumer market, used as metal substitutes in the automobile industry. Which Asia's level growth is 2-0 to 2.5 percent. Most of the phenol consumption is for polyphenylene oxide engineering resins. It is obtained with orthoxylene.

The common name of phenol is carbolic acid. A phenol containing one or more hydroxyl groups attached to an aromatic compound. Years ago phenol was extracted from coal tar so it was called carbolic acid. Initially synthetic phenol was produced by benzene sulfonation and hydrolysis of the sulfonate.

The global demand of phenol for disinfectants and medical preparations was 8.70 MT in 2007 and is currently growing at a healthy growth rate of 5 percent.

- Disinfectant :- White and black disinfectant fluids were standardized by the British Pharmacopoeia Institute in 1961 in which (RWC), ``Riddle Walker Coefficient'' was standardized in categories of 5 to 7, 10 to 12, and 18 to 20.

- Key Ingredient of Phenol Coefficient Black Disinfectant Fluid :- Phenol Coefficient Black Disinfectant can be made with castor soap, creosote oil, monochlorophenol and water.

License :- The license under the Industries Act and clearance from Food and Drug Authority is required.