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UREMBO NA USTAWI
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Hatari
Crystallised Phenol and Cresylic Acid from Crude Carbolic Acid, Lunge 1887
Crude carbolic acid is dried and fractionally distilled: phenol comes over first and crystallises in the cold, while cresylic acid (the cresols) boils higher and stays liquid. Drained, treated with a little strong sulfuric acid and distilled again, the crystals give white crystallised carbolic acid (Lunge, 1887). Phenol burns skin and is poisonous.
The picture: our diagram of the fractions.
Juu
Several 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.