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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.
Àárín
2 hours
Ìlànà
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.
Àwọn ohun èlò fún ìgbésẹ̀ yìí:
Erùpẹ̀ irin1 as required
Ìyẹ̀fun sulfur1 as requiredÀwọn irinṣẹ́ tí a nílò:
Ìkòkò Amọ̀ Tí Ń Kojú Iná2
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.
Àwọn irinṣẹ́ tí a nílò:
Ìkòkò Amọ̀ Tí Ń Kojú Iná
Ààrò Èédú
Ẹmú Ìkòkò Ìyọ́3
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.
Àwọn irinṣẹ́ tí a nílò:
Ẹmú Ìkòkò Ìyọ́
Ìgò Gílásì OnídìíÀwọn ohun-èlò
2- 1 as requiredÀyè
- 1 as requiredÀyè
Ìtọ́nisọ́nà yìí ń ṣe
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