Pakikipagtulungan
SINING
BEAUTY AT WELLNESS
CRAFTS
KULTURA AT KASAYSAYAN
LIBANGAN
KAPALIGIRAN
PAGKAIN AT INUMIN
REVERSE ENGINEERING
AGHAM
ISPORTS
TEKNOLOHIYA
MGA WEARABLE
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.
Katamtaman
1 day
Mga Tagubilin
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.
Mga materyales para sa hakbang na ito:
Barite (Heavy Spar)100 gMga kailangang kasangkapan:
Bituminous na uling-bato
Almires at Panghalo
Timbangang panimbang2
2
Roast
Roast
Roast the mixture in a crucible in the furnace. The coal cakes and runs through the mass, reducing the spar.
Mga kailangang kasangkapan:
Malalim na Krisol na Luwad
Pugon na Uling
Gwantes na Katad3
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.
Mga kailangang kasangkapan:
Madidilim na Garapong Salamin na Mahigpit ang TakipGwantes na KatadMga Materyales
1- 100 gPlaceholder
Mga Kinakailangang Kasangkapan
7- Placeholder
- Placeholder
- Placeholder
- Placeholder
- Placeholder
- Placeholder
Ang blueprint na ito ay gumagawa ng
CC0 Pampublikong Domain
Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.
Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.