International Chemical Service about Carbon Diselenide (Methanediselone)
Se=C=Se
CSe2

Chemical properties:
molecular mass: 169.93 g/mol
melting point: -45 °C (lit.)
boiling point: 125-126 °C (lit.)
stability: decomposes slowly about 1% per month at -30 °C
heat of formation: 34 kcal/mol (lit.)
solubility: good in organic solvents, insoluble in water
react with: bases and nucleophiles
other: light sensitive, strong unpleasant odor
main use: synthesis of organic conductors and superconductors
such as selenium analogs of tetrathiafulvalene (TTF) derivatives
- tetraselenafulvalene

Physical properties:
appearance: yellow-orange liquide
normal density: 2.66 g/ml (lit.)
nD: 1.845 (lit.)

Biological properties:
toxicity: probably toxic as other selenium compounds,
may by dangerous because of possibility of easy membrane transport,
also dangerous by inhalation (high vapour pressure)

Systematical information:
name(s): carbon diselenide, carbon selenide; methanediselone;
carbon(IV) selenide; 1,3-diselenapropadiene; 1,3-diselenaallene; selenium carbide
CAS No.: 506-80-9
Merck (12th Ed.): 1858
UQF No.: QS.500091

Aprox. prices:
1) carbon diselenide +98% (GC-MS):
1 g - 5472.00 EUR
5 g - 7853.00 EUR
10 g - 9541.00 EUR
25 g - 15,119.00 EUR
100 g - 19,320.00 EUR
250 g - 23,607.00 EUR
500 g - 31,238.00 EUR

2)carbon diselenide +99% (GC-MS):

add 15% to above prices

3) carbon diselenide (+98 or +99%), ~5% solution in solvent
prices are based on neat CSe2 prices and additional fee:
1 - 10 g of CSe2 - 157.00 EUR
11 - 50 g of CSe2 - 184.00 EUR
51 - 125 g of CSe2 - 272.00 EUR
126 - 500 g of CSe2 - 358.00 EUR
solvents: diethyl ether, THF, NMP, benzene, cyclohexane, dioxane, dichloromethane, tetrachloroethylene, pentane
available containers: orange glass bottles 30 ml, 100 ml, 250 ml, 500 ml, 1000 ml, 2500 ml with PTFE seal
solutions are more stable than neat product


Prices denominated in other currencies on request (USD, PLN, GBP, CHF, AUD, CAD)

Supliers:
UQF Chemicals (Poland)

Aliases:
Carbon Diselenide Page
Produkt: Diselenek wegla (Polish)


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