Selenium oxydichloride

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Names

[ CAS No. ]:
7791-23-3

[ Name ]:
Selenium oxydichloride

[Synonym ]:
SELENINYL DICHLORIDE
Seleninyl chloride
Selenium oxydichloride
Selenious dichloride
EINECS 232-244-0
MFCD00016327
Selenous dichloride

Chemical & Physical Properties

[ Density]:
2.43 g/mL at 25 °C(lit.)

[ Boiling Point ]:
180.0±0.0 °C at 760 mmHg

[ Melting Point ]:
9 °C

[ Molecular Formula ]:
Cl2OSe

[ Molecular Weight ]:
165.865

[ Flash Point ]:
176.4°C

[ Exact Mass ]:
165.849136

[ PSA ]:
17.07000

[ LogP ]:
0.87940

[ Vapour Pressure ]:
1.2±0.3 mmHg at 25°C

[ Index of Refraction ]:
1.651

[ Stability ]:
Stable, but reacts with water and moisture. Incompatible with water, potassium, phosphorus.

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
VS7000000
CHEMICAL NAME :
Seleninyl chloride
CAS REGISTRY NUMBER :
7791-23-3
LAST UPDATED :
199712
DATA ITEMS CITED :
29
MOLECULAR FORMULA :
Cl2-O-Se
MOLECULAR WEIGHT :
165.86
WISWESSER LINE NOTATION :
SE O G2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Human - man
DOSE/DURATION :
710 ug/kg
TOXIC EFFECTS :
Skin and Appendages - primary irritation (after topical exposure) Skin and Appendages - corrosive (after topical exposure)
REFERENCE :
PHRPA6 Public Health Reports. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1878- Volume(issue)/page/year: 53,94,1938
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Administration onto the skin
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
2 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CTOXAO Clinical Toxicology. (New York, NY) V.1-18, 1968-81. For publisher information, see JTCTDW. Volume(issue)/page/year: 17,171,1980
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
7 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CTOXAO Clinical Toxicology. (New York, NY) V.1-18, 1968-81. For publisher information, see JTCTDW. Volume(issue)/page/year: 17,171,1980 *** REVIEWS *** ACGIH TLV-TWA 0.2 mg(Se)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 TOXICOLOGY REVIEW PHREA7 Physiological Reviews. (American Physiological Soc., 9650 Rockville Pike, Bethesda, MD 20814) V.1- 1921- Volume(issue)/page/year: 23,305,1943 TOXICOLOGY REVIEW 85DHAX "Medical and Biologic Effects of Environmental Pollutants Series," Washington, DC, National Academy of Sciences, 1972-77 Volume(issue)/page/year: Se,112,1976 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.2 mg(Se)/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,224,1971 OSHA PEL (Gen Indu):8H TWA 0.2 mg(Se)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 0.2 mg(Se)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 0.2 mg(Se)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 0.2 mg(Se)/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-AUSTRALIA:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-BELGIUM:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-DENMARK:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-FINLAND:TWA 0.1 mg(Se)/m3;STEL 0.3 mg(Se)/m3 JAN 1993 OEL-GERMANY:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-HUNGARY:STEL 0.1 mg(Se)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-POLAND:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-SWEDEN:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.1 mg(Se)/m3 JAN 1993 OEL-TURKEY:TWA 0.2 mg(Se)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.1 mg(Se)/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 84567 No. of Facilities: 14 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 196 (estimated)

Safety Information

[ Symbol ]:

GHS06, GHS08, GHS09

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H301-H331-H373-H410

[ Supplemental HS ]:
Reacts violently with water.

[ Precautionary Statements ]:
P261-P273-P301 + P310-P311-P501

[ Personal Protective Equipment ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ Hazard Codes ]:
T: Toxic;N: Dangerous for the environment;

[ Risk Phrases ]:
R14

[ Safety Phrases ]:
S26-S36/37/39-S45-S60-S61

[ RIDADR ]:
UN 2879 8/PG 1

[ WGK Germany ]:
3

[ RTECS ]:
VS7000000

[ Packaging Group ]:
I

[ Hazard Class ]:
8

Synthetic Route

Precursor & DownStream

Precursor

  • Hydrochloric acid
  • Selenium dioxide
  • Selenium(IV) chloride (-8 mesh)
  • seleninyl bromide seleninyl bromide
  • selenium chloride
  • Chlorotrimethylsilane
  • Water
  • Bismuth trioxide
  • Tellurium dioxide
  • Selenium

DownStream

  • Disulfur dichloride
  • Sulfur trioxide
  • chloro selenohypochlorite
  • Selenium(IV) chloride (-8 mesh)
  • selenium chloride
  • Selenium dioxide
  • Selenium
  • β,β'-dichlorodiethyl-selenium dichloride

Related Compounds

  • selenium hexafluoride
  • Selenium sulfide.
  • selenium dithiocyanate
  • Selenium(1+), diiodo
  • Selenium hexasulfide
  • selenium(IV) tetracyanide
  • 2,4-dihydro-2-(2-pyridyl)-5-propyl-3H-pyrazol-3-one
  • 4-(4-chlorophenyl)-2-phenyl-2H-1,2,3-triazole
  • 5-Bromo-4,4,5,5-tetrafluoropent-2-en-1-ol
  • Obovatifol
  • Benzenepropanamine, N,N-bis(2-carbonylethyl)-4-[
  • Rel-7-((2R,3R)-3-amino-2-methylazetidin-1-yl)-1-cyclopropyl-6,8-difluoro-4-oxo-1,4-dihydroquinoline-3-carboxylic acid
  • 3,6-dichloro-N-[2-(piperidin-1-yl)phenyl]pyridine-2-carboxamide
  • 1-(3-Benzoylpropyl)-4-benzamidopiperidine
  • n-(4-Methylphenyl)(tert-butoxy)carbohydrazide
  • Ethyl 4-((5-(3-chlorophenyl)-1,2,4-oxadiazol-3-yl)methyl)piperazine-1-carboxylate
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