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Thioacetone
Chemical compound / From Wikipedia, the free encyclopedia
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Thioacetone is an organosulfur compound belonging to the -thione group called thioketones with a chemical formula (CH3)2CS. It is an unstable orange or brown substance that can be isolated only at low temperatures.[3] Above −20 °C (−4 °F), thioacetone readily converts to a polymer and a trimer, trithioacetone.[4] It has an extremely potent, unpleasant odor, and is considered one of the worst-smelling chemicals known to humanity.[5]
Quick Facts Names, Identifiers ...
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Names | |||
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Preferred IUPAC name
Propane-2-thione[1] | |||
Systematic IUPAC name
Thiopropan-2-one | |||
Other names
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Identifiers | |||
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CompTox Dashboard (EPA) |
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Properties | |||
C3H6S | |||
Molar mass | 74.14 g·mol−1 | ||
Appearance | Orange to brown liquid | ||
Odor | Intensely sulfurous, leak-like | ||
Melting point | −55°C(218.15k/-67°F)[2] | ||
Boiling point | 70°C(343.15k/158°F)[2] | ||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
Odor, skin irritant | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Thioacetone was first obtained in 1889 by Baumann and Fromm, as a minor impurity in their synthesis of trithioacetone.[2]