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Hatari
Hydroquinone: Aniline Oxidised to Quinone and Reduced, Thorpe 1912
Aniline in cold dilute sulfuric acid is oxidised by sodium dichromate to quinone, which sulfur dioxide reduces to hydroquinone; ether extracts it, and it is recrystallised from water with charcoal. Thorpe (1912) gives up to 85 % crude yield. A few ppm of hydroquinone keep vinyl acetate from forming peroxides.
The picture: our diagram of the route.
Juu
A day
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.