Ushirikiano
SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Hatari
Methane: Sodium Acetate Heated with Calcined Soda and Lime (Thorpe, 1912)
Marsh gas the laboratory way (Schorlemmer): sodium acetate is heated in an iron or copper vessel with a mixture of equal volumes of calcined soda and powdered lime. Methane comes off, with some hydrogen and ethylene; the ethylene is taken out with sulphuric acid.
Methane is colourless and odourless and forms an explosive mixture with air ('firedamp').
Not given: how much sodium acetate to the soda and lime, the heat, the acid strength.
Source: T. E. Thorpe, Dictionary of Applied Chemistry vol. III (1912), p. 483. Picture: the book's text.
Kati
Unknown
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
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.