눈에 묻으면 몇 분간 물로 조심해서 씻으시오. 가능하면 콘택트렌즈를 제거하시오. 계속 씻으시오.
NFPA 704
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1,4-시클로헥산디온비스(에틸렌케탈) C화학적 특성, 용도, 생산
일반 설명
Hydrolysis of 1,4-cyclohexanedione bis(ethylene ketal) at 250°C has been reported.
Synthesis
After mixing 2243 g (20 mol) of 1,4-cyclohexanedione, 2607 g (42 mol) of ethylene glycol, the resin filtered, and 26 L of toluene, the temperature was raised slowly and refluxed for 11 hours to separate the water. The reaction temperature was lowered to 40° C., the resin was filtered, and the organic phase was concentrated until no liquid flowed. Then add 1257g (21mol) of methylboronic acid and 20L of n-heptane, raise the temperature to 80°C and react for 6 hours, then slowly cool down to 5-10°C in a gradient, filter, rinse the filter cake with n-heptane, and dry to obtain 1,4-Cyclohexanedione bis(ethylene ketal).
