Phenol resin _ Wei Connaught Chemical (certified) _ Jining phenol provided by Connaught Chemical Co., Ltd. Qingdao Wei. Qingdao Wei Connaught Chemical Co. (www.qdweinuo.com) is specialized in the "phenol, aniline, ethylene, n-butanol, isobutanol, n-propanol, isopropanol, methanol," the business, the company adhering to the "integrity business, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Feng Zhongying. Chemical properties of phenol: can absorb moisture in the air and liquefied. Special smell, very dilute solution has a sweet taste. Corrosive. Chemical reaction ability. With aldehydes, ketones the reaction of phenolic resin, the organic solvent is phenol, bisphenol A, and acetic anhydride; the reaction of salicylic acid acetate, phenyl acetate, salicylate. May also be halo, hydrogenation, oxidation, alkylation, carboxylation, esterification, etherification and other reactions. Phenol which is solid at ordinary temperature, can not be successfully react with sodium, if the heating and melting phenol, was added sodium metal experimental method, phenol is easily restored, at the time of heating affect the color change of phenol experimental results. Some people take the following methods in the teaching experiment, simple operation, and achieved satisfactory experimental results. In a test tube was added 2-3 ml of anhydrous diethyl ether, take a piece of sodium metal bean size, the surface dry with filter paper kerosene, into the ether, it can be seen does not react with the sodium in ether. Then to the small amount of phenol added to the tube and shaken, then observed rapid response preservative sodium phenol in vitro, a large amount of gas. The principle of this experiment is dissolved in ether and phenol, the reaction of phenol with sodium smooth phenol: Phenol novolak fibers are mainly of a thermoplastic resin as a raw material, the melt-spun polyethylene is immersed in an aqueous solution of formaldehyde and hydrochloric acid for the curing process to obtain fiber body structure formaldehyde cross-linking. To improve the fiber strength and modulus, with 5% to 10% of a polyamide melt-blended spun. Such fibers are golden or yellow-brown fiber strength of 11.5 ~ 15.9cN / dtex, prominent anti-burning properties, limiting oxygen index of 34 pharmaceutical grade phenol, nearly 7500 ℃ momentary contact of oxygen - acetylene flame retardant does not melt nor with self-extinguishing phenol, also resistant to concentrated hydrochloric acid and hydrofluoric acid, but resistance to sulfuric acid, nitric acid and alkali poor performance. Mainly used as flame retardant protective clothing and fabric or upholstery, also used as insulation, thermal insulation and thermal insulation, filtration materials, can also be processed into a low-intensity, low-modulus carbon fiber, activated carbon fiber and ion exchange fiber.