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Cas Database |
| Name |
Diethyl selenide |
EINECS | N/A |
| CAS No. | 627-53-2 | Density | 1.232 g/mL at 25 °C(lit.) |
| PSA | 0.00000 | LogP | 1.56700 |
| Solubility | N/A | Melting Point |
55°C |
| Formula | C4H10 Se | Boiling Point | 108 °C(lit.) |
| Molecular Weight | 137.083 | Flash Point | 72 °F |
| Transport Information | N/A | Appearance | N/A |
| Safety | Low toxicity by inhalation. When heated to decomposition it emits toxic vapors of Se. | Risk Codes | R10; R23/25; R33; R50/53 |
| Molecular Structure |
|
Hazard Symbols |
 T, N
|
| Synonyms |
Ethylselenide (6CI,7CI,8CI); Diethyl selenide; Diethyl selenium; Diethylmonoselenide |
Article Data | 31 |
Diethyl selenide Synthetic route
| Conditions | Yield |
|---|---|
| With potassium hydroxide; selenium; hydrazine hydrate at 40 - 50℃; | 99% |
- 17696-75-2
diethyl selenoxide
- 627-53-2
diethylselenium
| Conditions | Yield |
|---|---|
| With hexamethyldisilathiane In dichloromethane at 40℃; for 2h; | 97% |
| Conditions | Yield |
|---|---|
| With potassium hydroxide; selenium; hydrazine hydrate at 35 - 40℃; | 83% |
| With piazselenole; magnesium 1.) diethyl ether, 2.) diethyl ether, reflux, 15 min; Yield given. Multistep reaction; |
- 74-96-4
ethyl bromide
A
- 627-53-2
diethylselenium
B
- 57796-75-5
divinyl selenide
C
- 87925-91-5
vinyl ethyl selenide
| Conditions | Yield |
|---|---|
| With potassium hydroxide; red selenium; water; tin(ll) chloride; acetylene at 105 - 115℃; under 9120 Torr; for 5h; | A 4% B 21% C 44% |
- 74-96-4
ethyl bromide
- 74-86-2
acetylene
A
- 627-53-2
diethylselenium
B
- 57796-75-5
divinyl selenide
C
- 87925-91-5
vinyl ethyl selenide
| Conditions | Yield |
|---|---|
| With potassium hydroxide; red selenium; water; tin(ll) chloride at 105 - 115℃; under 9120 Torr; for 5h; | A 4% B 21% C 44% |
| Conditions | Yield |
|---|---|
| With potassium hydroxide; red selenium; water; ethidium Bromide; tin(ll) chloride at 105 - 115℃; under 9120 Torr; for 5h; | A 4% B 21% C 44% |
| Conditions | Yield |
|---|---|
| With molybdenum (IV) sulfide; selen(o) hydrogen at 220℃; |
- 593-69-1
ethaneselenol
- 141-52-6
sodium ethanolate
A
- 627-53-2
diethylselenium
B
- 873964-28-4
triselenoorthoformic acid triethyl ester
| Conditions | Yield |
|---|---|
| folgendes Behandeln mit CCl4; |
| Conditions | Yield |
|---|---|
| With selenium(IV) oxide at 50℃; |
| Conditions | Yield |
|---|---|
| With selenium(IV) oxide |
Diethyl selenide Chemical Properties
Empirical Formula: C4H10Se
Molecular Weight: 137.0822 g/mol
Flash Point: 19.1 °C
Enthalpy of Vaporization: 33.25 kJ/mol
Boiling Point: 108 °C at 760 mmHg
Vapour Pressure: 30.9 mmHg at 25 °C
Structure of Diethyl selenide (CAS NO.627-53-2):
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IUPAC Name of Diethyl selenide (CAS NO.627-53-2): Ethylselanylethane
Product Categories of Diethyl selenide (CAS NO.627-53-2): Precursors by Metal;Vapor Deposition Precursors
Diethyl selenide Toxicity Data With Reference
| 1. | ihl-mus LCLo:3 g/m3/10M | NDRC** National Defense Research Committee, Office of Scientific Research and Development, Progress Report NDCrc-132,JUL42 . |
Diethyl selenide Safety Profile
Low toxicity by inhalation. When heated to decomposition it emits toxic vapors of Se.
Hazard Codes: 
T,
N
Risk Statements: 10-23/25-33-50/53
R10:Flammable.
R23/25:Toxic by inhalation and if swallowed.
R33:Danger of cumulative effects.
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Statements: 16-20/21-23-28-45-60-61
S16:Keep away from sources of ignition.
S20:When using, do not eat or drink.
S21:When using do not smoke.
S23:Do not breathe vapour.
S28:After contact with skin, wash immediately with plenty of soap-suds.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S60:This material and its container must be disposed of as hazardous waste.
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
Diethyl selenide Standards and Recommendations
ACGIH TLV: TWA 0.2 mg(Se)/m3
Diethyl selenide Specification
Diethyl selenide ,its cas register number is 627-53-2. It also can be called Ethyl selenide ; Methylene diisocyanate ; Ethane, 1,1'-selenobis- ;and (Ethylselanyl)ethane .
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