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Hatari
Chrome Alum: Potassium Dichromate Reduced with Alcohol in Sulphuric Acid
Chrome alum, the dark purple salt once used to tan leather and harden photographic gelatine, is made by reducing potassium dichromate with alcohol in sulphuric acid, kept below 40 °C. The orange liquid turns dark violet, and purple crystals grow from it. Dichromate causes cancer and the acid burns: gloves, goggles and a respirator.
The picture: chrome alum.
Juu
A week
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
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CC0 Umma Wote
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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.