Selenium oxychloride

Base Information

• Chemical Name: Selenium oxychloride
• CAS No.: 7791-23-3
• Molecular Formula: Cl2O Se
• Molecular Weight: 165.865
• Hs Code.: 28121099
• European Community (EC) Number: 232-244-0
• ICSC Number: 0948
• UN Number: 2879
• UNII: 1G57T5401W
• DSSTox Substance ID: DTXSID50884438
• Nikkaji Number: J95.310E
• Wikipedia: Selenium oxydichloride,Selenium_oxydichloride
• Wikidata: Q2991005
• Mol file: 7791-23-3.mol

Synonyms:SELENIUM OXYCHLORIDE;Seleninyl chloride;7791-23-3;Seleninyl dichloride;Selenium oxydichloride;Selenium chloride oxide;Selenium dichloride oxide;Selenium chloride oxide (SeCl2O);UN2879;HSDB 678;EINECS 232-244-0;UNII-1G57T5401W;1G57T5401W;MFCD00016327;Selenoxychlorid;Selenylchloride;selenous dichloride;Cl2OSe;Cloruro de seleninil;Cl2-O-Se;DICHLOROOXOSELENIUM;SELENYL DICHLORIDE;Selenium oxychloride, 97%;DTXSID50884438;SELENIUM OXYCHLORIDE [MI];NA2879;AKOS015915797;UN-2879;LS-144799;FT-0693920;Selenium oxychloride [UN2879] [Corrosive];Selenium oxychloride [UN2879] [Corrosive];Q2991005

Chemical Property of Selenium oxychloride

Chemical Property:

• Appearance/Colour: yellow to orange liq.
• Vapor Pressure: 1.24mmHg at 25°C
• Melting Point: 9 °C
• Refractive Index: 1.651
• Boiling Point: 180 °C(lit.)
• Flash Point: 176.4°C
• PSA: 17.07000
• Density: 2.43 g/mL at 25 °C(lit.)
• LogP: 0.87940
• Sensitive.: Moisture Sensitive
• Solubility.: Miscible with chloroform, carbon disulphide and benzene.
• Water Solubility.: decomposed in H2O to HCl, selenious acid; miscible with CCl4, CHCl3, CS2, benzene, toluene [MER06]
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 1
• Rotatable Bond Count: 0
• Exact Mass: 165.84914
• Heavy Atom Count: 4
• Complexity: 29
• Transport DOT Label: Corrosive Poison

Purity/Quality:

98%min ^*data from raw suppliers

Selenium dichloride oxide, 97% ^*data from reagent suppliers

Safty Information:

• Pictogram(s): TN
• Hazard Codes: T,N
• Statements: 14-23/25-33-35-50/53
• Safety Statements: 26-36/37/39-45-60-61-28-20/21

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Other Classes -> Other Inorganic Compounds
• Canonical SMILES: O=[Se](Cl)Cl
• Inhalation Risk: A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20 °C.
• Effects of Short Term Exposure: The substance is corrosive to the eyes, skin and respiratory tract. Inhalation of the vapour may cause lung oedema. Medical observation is indicated.
• Effects of Long Term Exposure: Repeated or prolonged contact may cause skin sensitization. The substance may have effects on the respiratory tract, gastrointestinal tract, central nervous system and liver. This may result in nasal irritation, persistent garlic odour, stomach pain, nervousness and liver impairment.
• Uses: Selenium oxychloride is a solvent for synthetic phenolic resins and many other substances. Selenium(IV) chloride oxide is used as a polar solvent for synthetic phenolic resins. It is also used to prepare selenium oxybromide and selenium nitride. It acts as a chlorinating agent. selenium oxychloride is used as solvent.
• Physical properties: Pale yellow or colorless liquid; corrosive; refractive index 1.651 at 20°C; density 2.42 g/mL at 22°C; freezes at 8.5°C; boils at 176.4°C; decomposes at 176.4°C; decomposes in water forming hydrochloric acid and selenious acid; soluble in carbon disulfide, carbon tetrachloride, chloroform, benzene, and toluene.

Technology Process of Selenium oxychloride

There total 40 articles about Selenium oxychloride which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 97.0%

chloro-trimethyl-silane (75-77-4) + selenium(IV) oxide (7446-08-4) → selenium oxychloride (7791-23-3)

Guidance literature:

In neat (no solvent); byproducts: Me3SiOSiMe3; (Ar); suspn. of SeO2 and Me3SiCl was stirred at about 25°C for 1 h; sepn. of Me3SiOSiMe3; distn.;;

DOI:10.1007/BF00953371

Reference yield:

tellurium(IV) oxide (7446-07-3) + diselenium dichloride (10025-68-0) → selenium (7782-49-2) + selenium oxychloride (7791-23-3) + tellurium tetrachloride (10026-07-0)

Guidance literature:

Reference yield:

antimony(III) trioxide + diselenium dichloride (10025-68-0) → selenium (7782-49-2) + antimony(III) chloride (10025-91-9) + selenium oxychloride (7791-23-3)

Guidance literature:

In neat (no solvent);

upstream raw materials:

potassium carbonate

diselenium dichloride

bismuth(III) oxide

Nitrogen dioxide

Downstream raw materials:

carbon dioxide

selenium(IV) oxide

oxygen

diselenium dichloride

Refernces

• 1、 Milne, John. "Haloselenate(IV) formation and selenous acid dissociation equilibria in hydrochloric and hydrofluoric acids". . p. 316 - 321. Retrieved 2007/10/02.
• 2、 Moiseenkov, A. M.,Lozanova, A. V.. "SELENYL CHLORIDE AS AN ACTIVE CHLORINATING AGENT". . p. 2400 - 2402. Retrieved 2007/10/02.