Occurrence and Manufacture
Small amounts of carbon disulfide are released by volcanic eruptions and marshes. CS2 once was manufactured by combining carbon (or coke) and sulfur at high temperatures. A lower temperature reaction, requiring only 600 °C utilizes natural gas as the carbon source in the presence of silica gel or alumina catalysts:
- 2CH4 + S8 → 2CS2 + 4H2S
The reaction is analogous to the combustion of methane. Although it is isoelectronic with carbon dioxide, CS2 is highly flammable:
- CS2 + 3O2 → CO2 + 2SO2
Read more about this topic: Carbon Disulfide
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