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
CRCH No.: QS.500091
Aprox. prices:
1) carbon diselenide +98% (GC-MS):
1 g - 5984.00 EUR
5 g - 9415.00 EUR
10 g - 12,887.00 EUR
25 g - 19,710.00 EUR
100 g - 31,045.00 EUR
250 g - 40,155.00 EUR
500 g - 58,340.00 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 - 257.00 EUR
11 - 50 g of CSe2 - 284.00 EUR
51 - 125 g of CSe2 - 372.00 EUR
126 - 500 g of CSe2 - 458.00 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, JPY)
Supliers:
CRCH Chemicals
(Poland)
Aliases:
Carbon Diselenide Page
Produkt: Diselenek wegla
(Polish)
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