Tellurium dioxide

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Names

[ CAS No. ]:
7446-07-3

[ Name ]:
Tellurium dioxide

[Synonym ]:
tellurite oxide
TELLURIUM(IV) IODIDE
tellurium(IV) dioxide
tellerium dioxide
tellurium iodide
EINECS 231-193-1
tellurium(IV) oxide
tellurous dioxide
technetium dioxide
tetraiodo-|E4-tellane
MFCD00011263
Tellur(IV) iodid

Chemical & Physical Properties

[ Density]:
5.67 g/mL at 25 °C(lit.)

[ Boiling Point ]:
1245 °C

[ Melting Point ]:
733 °C(lit.)

[ Molecular Formula ]:
O2Te

[ Molecular Weight ]:
159.59900

[ Exact Mass ]:
161.89600

[ PSA ]:
34.14000

[ Stability ]:
Stable. Incompatible with strong acids, strong oxidizing agents.

[ Water Solubility ]:
insoluble

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
WY2675000
CHEMICAL NAME :
Tellurium dioxide
CAS REGISTRY NUMBER :
7446-07-3
LAST UPDATED :
199712
DATA ITEMS CITED :
32
MOLECULAR FORMULA :
O2-Te
MOLECULAR WEIGHT :
159.60
WISWESSER LINE NOTATION :
TE O2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>5 gm/kg
TOXIC EFFECTS :
Gastrointestinal - hypermotility, diarrhea
REFERENCE :
TNONF* TNO-report. (TNO Nutrition and Food Research, P.O. Box 360, 3700 AJ Zeist, Utrechtseweg 48, 3704 HE Zeist, Netherlands) Volume(issue)/page/year: TNO-96-514
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intratracheal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
80 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - dyspnea Kidney, Ureter, Bladder - other changes Gastrointestinal - other changes
REFERENCE :
AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 39,100,1978
TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
324 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
SMSJAR Scottish Medical and Surgical Journal. (Edinburgh, Scotland) For publisher information, see SMDJAK. Volume(issue)/page/year: 26,131,1826 ** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
50 mg/m3/2H/15W-I
TOXIC EFFECTS :
Autonomic Nervous System - other (direct) parasympathomimetic Behavioral - muscle contraction or spasticity Related to Chronic Data - death
REFERENCE :
GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 6(2),44,1962
TYPE OF TEST :
TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE :
Inhalation
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
3500 ng/kg/13W-C
TOXIC EFFECTS :
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol) Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - true cholinesterase Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 40(10),14,1975 ** REPRODUCTIVE DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
798 mg/kg
SEX/DURATION :
female 15-19 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetal death Reproductive - Specific Developmental Abnormalities - Central Nervous System Reproductive - Specific Developmental Abnormalities - eye/ear
REFERENCE :
TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 29(2),50A,1984
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
798 mg/kg
SEX/DURATION :
female 15-19 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - body wall Reproductive - Specific Developmental Abnormalities - urogenital system Reproductive - Specific Developmental Abnormalities - homeostasis
REFERENCE :
TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 29(2),50A,1984
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
399 mg/kg
SEX/DURATION :
female 15-19 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)
REFERENCE :
TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 29(2),50A,1984
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
27930 ug/kg
SEX/DURATION :
female 15-19 day(s) after conception
TOXIC EFFECTS :
Reproductive - Specific Developmental Abnormalities - Central Nervous System Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4 per # born alive)
REFERENCE :
TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 31,66A,1985
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
DOSE :
79800 ug/kg
SEX/DURATION :
female 15-19 day(s) after conception
TOXIC EFFECTS :
Reproductive - Effects on Newborn - stillbirth
REFERENCE :
TJADAB Teratology, The International Journal of Abnormal Development. (Alan R. Liss, Inc., 41 E. 11th St., New York, NY 10003) V.1- 1968- Volume(issue)/page/year: 31,66A,1985 *** REVIEWS *** ACGIH TLV-TWA 0.1 mg(Te)/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 *** U.S. STANDARDS AND REGULATIONS *** OSHA PEL (Gen Indu):8H TWA 0.1 mg(Te)/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 0.1 mg(Te)/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 0.1 mg(Te)/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 0.1 mg(Te)/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-AUSTRALIA:TWA 0.1 mg(Te)/m3 JAN 1993 OEL-BELGIUM:TWA 0.1 mg(Te)/m3 JAN 1993 OEL-DENMARK:TWA 0.1 mg(Te)/m3 JAN 1993 OEL-FINLAND:TWA 0.1 mg(Te)/m3;STEL 0.3 mg(Te)/m3 JAN 1993 OEL-FRANCE:TWA 0.1 mg(Te)/m3 JAN 1993 OEL-GERMANY:TWA 0.1 mg(Te)/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.1 mg(Te)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.1 mg(Te)/m3 JAN 1993 OEL-SWEDEN:TWA 0.1 mg(Te)/m3 JAN 1993 OEL-SWITZERLAND:TWA 0.1 mg(Te)/m3;STEL 0.5 mg(Te)/m3 JAN 1993 OEL-TURKEY:TWA 0.1 mg(Te)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.1 mg(Te)/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 - 83727 No. of Facilities: 125 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 502 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 83727 No. of Facilities: 6 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 51 (estimated)

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Hazard Codes ]:
Xn

[ Safety Phrases ]:
S24/25

[ RIDADR ]:
UN 3284 6.1/PG 3

[ WGK Germany ]:
2

[ RTECS ]:
WY2675000

[ Packaging Group ]:
II

[ Hazard Class ]:
6.1(a)

Synthetic Route

Precursor & DownStream

Precursor

  • Hexahydroxy-λ6-tellane
  • telluric chloride
  • Tellurium tetrafluoride.
  • tellurous acid
  • Tellurium (IV) iodide
  • silica gel
  • tellurium dichloride
  • nitrogen dioxide
  • Tellurium trioxide
  • Tellurium monoxide

DownStream

  • Bismuth trioxide
  • Tellurium dioxide
  • Selenium oxydichloride
  • Selenium
  • telluric chloride
  • Hexahydroxy-λ6-tellane
  • Tellurium (IV) iodide
  • tellurium dichloride
  • Tellurium(IV) bromide
  • Tellurium

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Related Compounds

  • tellurium dioxide
  • Tellurium dioxide hydrate
  • tellurium(IV) nitrate
  • tellurium-134
  • tellurium-133
  • tellurium-132