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| CAS No.: | 10026-03-6 |
|---|---|
| Name: | Selenium(IV) chloride (-8 mesh) |
| Article Data: | 155 |
| Molecular Structure: | |
|
|
|
| Formula: | Cl4Se |
| Molecular Weight: | 220.772 |
| Synonyms: | Seleniumchloride (SeCl4) (6CI,7CI,8CI); Selenium chloride; Selenium tetrachloride;Tetrachloroselenium |
| Density: | g/cm3 |
| Melting Point: | 200-210 °C |
| Boiling Point: | 288°C |
| Flash Point: | °C |
| Solubility: | Decomposes in water and moist air. Insoluble in liquid bromine. Sublimes when heated |
| Hazard Symbols: | Irritant. |
| Risk Codes: | 23/24/25-34-50/53-33-23/25 |
| Safety: | Poison by subcutaneous route. When heated to decomposition it emits very toxic fumes of Se and Cl−. See also SELENIUM COMPOUNDS. |
| PSA: | 0.00000 |
| LogP: | 2.37720 |
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Chemistry
Molecule structure of Selenium tetrachloride (CAS NO.10026-03-6) :
Molecular Weight: 220.772 g/mol
Molecular Formula: Cl4Se
Density: 2.6 g/mL at 25 °C(lit.)
Melting Point: 200-210 °C
Boiling Point: 288 °C
Refractive Index: 1.807
Sensitive: moisture sensitive
Merck: 14.8438
Exact Mass: 221.788983
MonoIsotopic Mass: 219.791933
Heavy Atom Count: 5
Complexity: 19.1
Canonical SMILES: Cl[Se](Cl)(Cl)Cl
InChI: InChI=1S/Cl4Se/c1-5(2,3)4
InChIKey: LNBXMNQCXXEHFT-UHFFFAOYSA-N
EINECS: 233-053-5
Product Categories: Electronic Chemicals; Micro/Nanoelectronics; Others
Uses
Selenium tetrachloride (CAS NO.10026-03-6) is used in the synthesis of other selenium compounds.
Production
Selenium tetrachloride (CAS NO.10026-03-6) is prepared by treating selenium with chlorine: When the reacting selenium is heated, the product sublimes from the reaction flask. The volatility of selenium tetrachloride can be exploited to purification of selenium.
Toxicity Data With Reference
| 1. | scu-gpg LD50:19 mg/kg | NDRC** National Defense Research Committee, Office of Scientific Research and Development, Progress Report |
Consensus Reports
Selenium and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.
Safety Profile
Poison by subcutaneous route. When heated to decomposition it emits very toxic fumes of Se and Cl−. See also SELENIUM COMPOUNDS.
Hazard Codes: 
T, 
N
Risk Statements: 23/24/25-34-50/53-33-23/25
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed.
R34:Causes burns.
R50/53:Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
R33:Danger of cumulative effects.
R23/25:Toxic by inhalation and if swallowed.
Safety Statements: 22-26-36/37/39-45-61-60-28-20/21
S22:Do not breathe dust.
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
S61:Avoid release to the environment. Refer to special instructions / safety data sheets.
S60:This material and its container must be disposed of as hazardous waste.
S28:After contact with skin, wash immediately with plenty of soap-suds.
S20:When using, do not eat or drink.
S21:When using do not smoke.
RIDADR: UN 3290 6.1/PG 2
WGK Germany: 3
RTECS: VS7875000
HazardClass: 8
PackingGroup: II
Standards and Recommendations
OSHA PEL: TWA 0.2 mg(Se)/m3
ACGIH TLV: TWA 0.2 mg(Se)/m3
DFG MAK: 0.1 mg(Se)/m3
Specification
Selenium tetrachloride (CAS NO.10026-03-6) is also called Selenium chloride (SeCl4), (T-4)- ; Selenium(IV) chloride (1:4) . Selenium tetrachloride (CAS NO.10026-03-6) is yellow crystalline powder. It is high toxic. It is not flammable. It will produce highly toxic hydrogen selenide gas by heat and water. So the storage environment should be ventilate, low-temperature and dry. Keep Selenium tetrachloride (CAS NO.10026-03-6) separate from raw materials of food and acid.