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Hatari
Xylene from Coal-Tar Light Oil: the 137.5–142 °C Cut
Commercial xylene is the part of coal-tar light oil that boils at about 140 °C: a mixture of the three xylenes, mostly meta, with a fifth or so para. The light oil is washed with strong sulphuric acid and caustic soda as for benzol (Lunge, 1887). In the steam distillation the fraction above 136 °C is solvent naphtha; redistilled, its 137.5–142 °C cut is xylene (Thorpe, 1913). It is the raw material for para-xylene and so for PET.
The picture: our diagram of the route.
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.