SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Hatari
Para-Phenylenediamine: p-Nitraniline Reduced with Tin and Hydrochloric Acid (Thorpe 1913)
Para-phenylenediamine, C6H4(NH2)2, made as Thorpe gives it: p-nitraniline reduced with tin and hydrochloric acid. The pure base forms crystals melting at 147 °C.
Source: Thorpe, Dictionary of Applied Chemistry vol. 1 (1913), Amines, after Hofmann. Unknown: the amounts, the conditions and how the base is separated from the tin. Thorpe gives none, so they are linked to unknown heads. Hydrochloric acid is a strong acid. Picture drawn by Youblob.
Juu
1 day
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.