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Ferrous Sulfide: Iron Filings Heated with Sulphur (Thorpe 1912)
Heat iron filings with sulphur and they combine into ferrous sulfide, a hard black solid. Its main use: acids decompose it into hydrogen sulfide gas.
Result: a very hard, metallic-looking black crystalline solid, sp. gr. 4.69, not magnetic, stable in air, melting at a full red heat.
Source: Thorpe, Dictionary of Applied Chemistry, vol. 3 (1912), Iron. Not given: proportions, temperature, vessel. Ours: work outdoors, as burning sulphur gives choking fumes. Picture drawn by Youblob.
Katamtaman
2 hours
Mga Tagubilin
1
1
Mix iron filings and sulphur
Mix iron filings and sulphur
Mix iron filings with sulphur. Thorpe gives no proportions. Ours: mix them in a refractory clay crucible.
Mga materyales para sa hakbang na ito:
Kiskis na bakal1 as required
Pulbos na asupre1 as requiredMga kailangang kasangkapan:
Krisol na Luwad na Matibay sa Apoy2
2
Heat the mixture
Heat the mixture
Heat the mixture until the iron and sulphur combine. Ferrous sulfide melts at a full red heat. Ours: set the crucible in a charcoal furnace and handle it with tongs; work outdoors.
Mga kailangang kasangkapan:
Krisol na Luwad na Matibay sa Apoy
Pugon na Uling
Sipit ng Krisol3
3
Cool and break up the black mass
Cool and break up the black mass
Let it cool. Compact ferrous sulfide is very hard, black, metallic-looking and not magnetic, and keeps in air. Ours: break it into lumps and store it in a closed jar.
Mga kailangang kasangkapan:
Sipit ng Krisol
Garapong Salamin na May TakipMga Materyales
2- 1 as requiredPlaceholder
- 1 as requiredPlaceholder
Mga Kinakailangang Kasangkapan
4- Placeholder
- Placeholder
- Placeholder
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