Application of Azobisisobutyronitrile
Azobisisobutyronitrile is a white Crystal or crystalline powder, insoluble in water, soluble in diethyl ether, methanol, ethanol, propanol, chloroform, benzene, ethylene dichloride, ethyl acetate, are oil-soluble initiator. Thermal decomposition and melting point of 100 ° c-104.Azobisisobutyronitrile should be kept in dry place at 20 ℃.Contact with water, emit nitrogen and containing-(CH2) 2-C-CN organic cyanides. Decomposition temperature is 64.At room temperature, Azobisisobutyronitrile slow decomposition, 100 rapid decomposition, can lead to explosive fire, flammable and toxic. Releasing nitrogen and organic cyanides, which is harmful to the human body.
Azobisisobutyronitrile is oil-soluble azo initiators, reaction stable azo-initiator, is a first-order reaction, no side effects, better controls, so widely used in polymer research and production. For instance, acrylonitrile, vinyl chloride, vinyl acetate monomer polymerization initiator, can also be used as PVC, polyolefin, polyurethane, polyvinyl alcohol, and acrylonitrile butadiene styrene copolymer, poly-isocyanate, Poly Vinyl acetate, polyamide and polyester, the foaming agent. In addition, Azobisisobutyronitrile is also used in organic synthesis.
Azobisisobutyronitrile is the most common kind of azo-initiator. Characterized by a decomposition reaction is relatively stable, only 1 free radicals, induced decomposition does not occur, so often used in free-radical polymerization kinetics. In addition it is more stable and safer to store and use. As with all azo compounds, Azobisisobutyronitrile has some toxicity, It cannot be used for medical, food packaging and other related polymer synthesis, due to its decomposition reaction stoichiometry nitrogen, can often be easily by means of determination of the volumetric decomposition releasing nitrogen to break down determined activation energy and dynamic data such as frequency factor. Sometimes it can produce nitrogen foam the polymer. Its decomposition temperature from 50℃to70℃in Kilning, decomposition activation energies for the 129kJ/mol, low reactive initiator.
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TongJiu Hydrazine Hydrate Industry Co., Ltd was found in 2002, Located at Xinhua West Road 10#, NanJing City, China, mainly producing hydrazine hydrate. Tongjiu mainly specializes in the production and research & development of auxiliary agents for oil field, including 1H-1,2,4-Triazole, Hydrazine Hydrate,O-chlorbenzyl chloride and so on. The production capacity of Aminoguanidine bicarbonate is 15000 mts per year, and sodium hormate is 25000 mts per year.and 2-Cyano-4-Nitro-6-Bromoaniline 18000mts per year.