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Hatari
Allyl Glycidyl Ether: Allyl Alcohol and Epichlorohydrin, Evans, Marple and Shokal 1943
Epichlorohydrin boiled for a day and a half in a large excess of allyl alcohol with a trace of stannic chloride gives the chlorohydrin ether; strong caustic soda at about 0 °C closes it into allyl glycidyl ether, which is extracted and fractionated (Evans, Marple and Shokal, Shell, US 2,314,039, 1943: 76.7 %). It is the thinner that makes bis-phenol epoxy spreadable as a glue.
The picture: our diagram of the four stages.
Juu
A few days
Maudhui hatari
Blueprint hii ina taratibu za hatari. Ingia na uwashe maudhui ya hatari katika mipangilio ya akaunti yako ili kuona maagizo ya hatua kwa hatua.
IngiaMchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.