Ubufatanye
UBUHANZI
UBWIZA N'UBUZIMA
UBUKORIKORI
UMUCO N'AMATEKA
IMYIDAGADURO
IBIDUKIKIJE
IBIRIBWA N'IBINYOBWA
UBWUBATSI BUSUBIRA INYUMA
UBUMENYI
SIPORO
IKORANABUHANGA
IBYAMBARWA
Akaga
Helium: Uraninite Heated with Dilute Sulphuric Acid, Purified through Hot Quartz (Thorpe 1912)
Uranium minerals hold helium trapped inside them. Heating the powder with dilute sulphuric acid lets all of it out. Fused quartz at 1000–1200 °C lets helium through and nothing else, so the helium comes out pure.
Result: helium free from nitrogen and the other inert gases. For comparison, 1 g of cleveite (a kind of uraninite) gives over 3.2 cc.
Source: Thorpe, Dictionary of Applied Chemistry vol. 3 (1912), p. 34, after Travers and after Jacquerod and Perrot. Not given: acid strength, amounts, yield from plain uraninite. Uraninite is radioactive. Picture drawn by Youblob.
Hejuru
1 day
Ibirimo biteje akaga
Iki gikorwa kirimo imikorere yangiza. Injira hanyuma ufungure ibikoresho byangiza mu igenamiterere ryawe kugira ngo urebe amabwiriza.
InjiraIki gishushanyo gikora
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.