Thermal Decomposition of Bis(2-ethylhexyl) Phthalate and Dioctyl Phthalatet

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  • SAIDO Katsuhiko
    Department of Pharmacy & Industrial Chemistry, College of Science and Technology, Nihon University;
  • KUROKI Takeshi
    日本大学理工学部工業化学科
  • IKEMURA Tadashi
    日本大学理工学部工業化学科
  • KIRISAWA Makoto
    Department of Pharmacy & Industrial Chemistry, College of Science and Technology, Nihon University;

Bibliographic Information

Other Title
  • フタル酸ビ落(2-エチルヘキシル)とフタル酸ジオクチルの熱分解
  • フタル酸エステル類の熱分解反応　ＶＩ　　フタル酸ビス（２‐エチルヘキシル）とフタル酸ジオクチルの熱分解

Description

The thermal decomposition of bis (2-ethylhexyl) phthalate (DEHP) and dioctyl phthalate (DOP)was carried out in a newly designed quartz flow reactor, capable of avoiding the secondary decomposition of the products (see Fig.1). The thermal decomposition conditions were as follow; the temperature range 250-500°C, residence time 2.2-8.4 s, molar ratio of nitrogen gas to sample 20.1. The thermal decomposition products of DEHP and DOP showed that the decomposition proceeded mainly by cis-elimination. The first order rate constants of the reactions were obtained as (see Fig.5-7);<BR>_??_<BR>

Journal

  • NIPPON KAGAKU KAISHI

    NIPPON KAGAKU KAISHI 1982 (7), 1212-1217, 1982-07-10

    The Chemical Society of Japan

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