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Hatari
Crude Carbolic Acid: Carbolic Oil Washed with Caustic Soda, Lowe's Prescription
Caustic soda pulls the phenols out of coal-tar carbolic oil; acid sets them free again as crude carbolic acid. Charles Lowe's prescription, as given by Lunge (1887): 200 gallons of oil stirred two hours with 30 gallons of soda (sp. gr. 1.34) diluted to 150, settled four hours, the soda liquor neutralised with sulfuric acid in a lead-lined tank. Phenol is poisonous and burns skin.
The picture: our diagram of the separation.
Juu
A day, then several days settling
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.