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MICHEZO
TEKNOLOJIA
VAZI
Hatari
Bisphenol A: Phenol and Acetone in 70 % Sulfuric Acid, Greenhalgh 1934
Phenol and acetone stirred for a day in about 70 % sulfuric acid at 45–60 °C join, two phenols to one acetone, into bisphenol A, which comes out as a solid to be filtered and washed (Greenhalgh, ICI, US 1,977,627, 1934: 65–70 % yield). Acid of this strength can be handled in lead. Bisphenol A is the other half of epoxy resin.
The picture: our diagram of the four stages.
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.