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| | Carbon diselenide Basic information |
| Product Name: | Carbon diselenide | | Synonyms: | Methanediselone;Carbon selenide;Carbon selenide (CSe2);carbonselenide(cse2);CSe2;Diselenoxomethane;Carbon diselenide (CSe2) | | CAS: | 506-80-9 | | MF: | CSe2 | | MW: | 169.93 | | EINECS: | 208-054-9 | | Product Categories: | | | Mol File: | 506-80-9.mol |  |
| | Carbon diselenide Chemical Properties |
| Melting point | -45.5° | | Boiling point | bp 125-126°; bp8.0 10.0° | | density | d420 2.6824; d425 2.6626 | | refractive index | nD20 1.845 | | solubility | insoluble in H2O; very soluble in ctc, toluene | | form | yellow liquid | | color | yellow | | Water Solubility | insoluble H2O; miscible with CCl4, CS2, toluene [MER06] | | Stability: | Stable. | | EPA Substance Registry System | Carbon selenide (CSe2) (506-80-9) |
| | Carbon diselenide Usage And Synthesis |
| Chemical Properties | light sensitive, golden yellow, strongly refractive liquid; odor of rotten radishes; turns brown to black on storage [MER06] | | Preparation |
The preparation method of carbon selenide: a dry stream of N2 is saturated with CH2Cl2 vapor, and the gas mixture is introduced into a Vycor flask in which Se is heated to 550-600°C. The crude product precipitates in the receiver, equipped with a Liebig condenser. The cooling by the condenser is stopped and the liquid is forced with steam into a cooled flask, separated from the H2O and dried over CaCl2. It is then distilled at 46°C and 50 mm. in a fractionating column (30 cm. long).
| | Solubility in organics | Dissolves, yielding a yellow liquid, in CS2, CCl4, ether, benzene, nitrobenzene, dioxane, ethyl acetate and acetone. Slightly soluble in glacial acetic acid and alcohol, decomposing these rapidly; pyridine behaves in the same manner. Dissolves copious quantities of flowers of sulfur, but red Se hardly at all. |
| | Carbon diselenide Preparation Products And Raw materials |
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