Ubufatanye
UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Acrylonitrile: Ethylene Cyanohydrin Dripped onto a Hot Acetate Melt
Akaga
Charlie

Yaremwe na

Charlie

19. Ukwakira 2026DE
12
0
0
0
0

Acrylonitrile: Ethylene Cyanohydrin Dripped onto a Hot Acetate Melt

Acrylonitrile is the 'A' in ABS plastic. Carpenter and Davis (American Cyanamid, US 2,461,492, 1949) drip ethylene cyanohydrin onto a stirred melt of an acetate salt at 210–220 °C: water splits off, and acrylonitrile and water distil over together and settle into two layers. Their example got 95 %, and the same catalyst kept working for the next batch. Acrylonitrile is toxic: closed apparatus, fume hood. The picture: our diagram.
Hejuru
Half a day

Ibirimo biteje akaga

Iki gikorwa kirimo imikorere yangiza. Injira hanyuma ufungure ibikoresho byangiza mu igenamiterere ryawe kugira ngo urebe amabwiriza.

Injira

Iki gishushanyo gikora

Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

CC0 Umurenge rusange

Iyi blueprint yasohowe munsi ya CC0. Ushobora gukoporora, guhindura, gukwirakwiza no gukoresha nta kwemererwa.

Shyigikira Umuremyi ugura ibicuruzwa binyuze muri Blueprint ye Komisiyo y'Umuremyi byashyizweho n'Abacuruzi, cyangwa kora verisiyo nshya y'iyi Blueprint ukayinjiza nk'isano muri Blueprint yawe kugira ngo musangire inyungu.

Ibiganiro

(0)

Injira kugira ngo ujye mu biganiro

Gutegura ibitekerezo...