![]() Virtually 100% of cyclohexane will end up in the air. The half-life of a pollutant is the amount of time it takes for one-half of the chemical to be degraded. There is no guideline for cyclohexane in the Australian Drinking Water Guidelines.Ĭyclohexane is non-persistent in water, with a half-life of less than 2 days. Make sure you understand how to interpret the standards before you use them. These standards are only appropriate for use in workplaces and are not limited to any specific industry or operation. Maximum short term exposure limit (STEL): 300 parts per million (1050 mg/m 3).Maximum eight hour time weighted average (TWA): 100 parts per million (350 mg/m 3).Safe Work Australia sets the workplace exposure standard for cyclohexane through the workplace exposure standards for airborne contaminants: Exposure can also occur when people use products that contain cyclohexane or when they smoke cigarettes. ExposureĮxposure to cyclohexane can occur in the workplace or in the environment following releases to air, water, land, or groundwater. Cyclohexane is not likely to remain in the body due to its breakdown and removal in exhaled air and in urine. It can also be absorbed through skin contact. Entering the bodyĬyclohexane enters the body when breathed in with contaminated air or when consumed with contaminated food or water. The cyclohexane industry is now studying how its chemical affects the reproductive system and the development of the foetus of animals. Studies show that repeat exposure to large amounts of cyclohexane in air causes nervous system effects, eye damage, and respiratory effects in animals. Human health effects associated with breathing or otherwise consuming smaller amounts of cyclohexane over long periods of time are not known. These effects are not likely to occur at levels of cyclohexane that are normally found in the environment. Contact with cyclohexane liquid or vapour can damage the eyes. Effects range from headaches to anaesthesia, tremors, and convulsions. Breathing large amounts of cyclohexane for short periods of time adversely affects the human nervous system. Effects also depend on the health of a person or the condition of the environment when exposure occurs. Australia's cyclohexane emission reportĮffects of cyclohexane on human health and the environment depend on how much cyclohexane is present and the length and frequency of exposure.The National Pollutant Inventory ( NPI) holds data for all sources of cyclohexane emissions in Australia. It is slightly soluble in water and soluble in alcohol, acetone, benzene, ethanol, ethyl ether, olive oil, and carbon tetrachloride.įormula weight 84.161 Chemical propertiesĬyclohexane is a flammable, non-corrosive liquid. Synonyms: hexamethylene hexanaphthene hexahydrobenzene, benzenehexahydride Physical propertiesĬyclohexane is a colourless, mobile liquid with a mild, sweet odour. It is also used in perfume manufacturing, during surface coating operations (lacquers), in synthesis of adipic acid for production of nylon 66 and engineering plastics, during synthesis of caprolactam in nylon 6, paint and varnish remover, in the extraction of essential oils, in analytical chemistry for molecular weight determinations, in the manufacturing of adipic acid, benzene, cyclohexyl chloride, nitrocyclohexane, cyclohexanol and cyclohexanone, in the manufacturing of solid fuel for camp stoves, in fungicidal formulations (possesses slight fungicidal action) in the industrial recrystallising of steroids, organic synthesis, recrystallising medium glass substitutes, solid fuels, in analytical chemistry and in manufacturing of adhesives. This compound is used as a solvent to dissolve cellulose ethers, lacquers, resins, fats, waxes, oils, bitumen and crude rubber. What one company is doing to reduce emissions.Substance definitions - frequently asked questions.Calculating emissions - frequently asked questions.Industry reporting - frequently asked questions.
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