SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Barium Sulphide: Heavy Spar Roasted with Coal
Barium sulphide is the barium half of lithopone, the white pigment. Thorpe (1912): roast 100 parts of heavy spar with 20 parts of coal slack or charcoal. Caking bituminous coal soaks through the mass and reduces it completely; with charcoal, mix very thoroughly. The roasted mass still holds carbon and some unchanged spar: hot water takes out the barium sulphide. Left in air it turns to carbonate and smells of rotten eggs, so keep it closed.
The picture: our own drawing.
Kati
1 day
Maagizo
1
1
Grind and mix
Grind and mix
Grind 100 g of heavy spar and 20 g of bituminous coal slack and mix them very thoroughly.
Vifaa kwa hatua hii:
Baraiti (Heavy Spar)100 gZana zinazohitajika:
Makaa ya mawe ya bitumeni
Kinu na mchi
Mizani ya mizani-mbili2
2
Roast
Roast
Roast the mixture in a crucible in the furnace. The coal cakes and runs through the mass, reducing the spar.
Zana zinazohitajika:
Kaure ya Udongo Yenye Kina
Tanuru la mkaa
Glavu za Ngozi3
3
Cool and close it up
Cool and close it up
Let it cool and put it straight into an airtight jar. It holds spare carbon and some unchanged spar; hot water dissolves out the barium sulphide when you use it.
Zana zinazohitajika:
Vyungu vya Kioo Cheusi vyenye Mifuniko Isiyopitisha HewaGlavu za NgoziVifaa
1- 100 gKishikilia Nafasi
Zana Zinazohitajika
7- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro 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.