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chemical auxiliaries diethyl phthalate in Ethiopia
  • How is diethyl phthalate produced?
  • Diethyl phthalate is produced industrially by the reaction of phthalic anhydride with ethanol in the presence of concentrated sulfuric acid catalyst (Anonymous 1985; HSDB 1994). Phthalic anhydride is produced by either the oxo process or the Ald-Ox process from ethanol and the oxidation of naphthalene or o-xylene (Peakall 1975).
  • What is the international chemical assessment document 52 for diethyl phthalate?
  • The Concise International Chemical Assessment Document 52 for Diethyl Phthalate (WHO, 2003) includes a summary of a study by Tanaka et al. (1987) published in Japanese. In the study, groups of pregnant ICR mice (18–20/group) were administered DEP percutaneously on GDs 0–17 at 0, 500, 1,600, or 5,600 mg/kg-day.
  • Is diethyl phthalate a reportable chemical?
  • However, diethyl phthalate is not currently included in the Toxics Release Inventory as a reportable chemical. Environmental Fate. Diethyl phthalate released to air, water, or soil partitions to sediment or is adsorbed to organic matter in water (EPA 1979, 1989; Tomson et al. 1981; Wolfe et al. 1980a).
  • What is the distribution of diethyl phthalate in air?
  • The distribution of diethyl phthalate between the gaseous and particulate phases in air was estimated by the Junge-Pankow model, which determined the fraction of diethyl phthalate in the particulate (aerosol) phase to be 0.000 39 (Staples et al., 1997a).
  • How to dispose of diethyl phthalate?
  • Recommended methods for disposal of diethyl phthalate include incineration and landfill. The best techniques for incineration are liquid injection and rotary kiln. The incineration range for the former is 650°C to 1,600ºC, with a residence time of 0.1 to 2 seconds. The temperature range for rotary kiln incineration is 820°C to 1,600ºC.
  • Is diethyl phthalate toxic?
  • Diethyl phthalate has been detected in adipose tissue samples taken from people (including children) nationwide. Occupational exposure may occur in industrial facilities where diethyl phthalate is used in the manufacture of plastics or consumer products. Diethyl phthalate is not included on the Toxics Release Inventory as a reportable chemical.