Material Safety Data Sheet
Diphenyl ditelluride, 98%

ACC# 91341
Section 1 - Chemical Product and Company Identification
MSDS Name: Diphenyl ditelluride, 98%
Catalog Numbers: AC301840000, AC301840010
Synonyms:
None.
Company Identification:

              Acros Organics N.V.
              One Reagent Lane
              Fair Lawn, NJ 07410
For information in North America, call: 800-ACROS-01
For emergencies in the US, call CHEMTREC: 800-424-9300

Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
32294-60-3 Diphenyl ditelluride 98 250-982-1

Section 3 - Hazards Identification

EMERGENCY OVERVIEW

Appearance: orange to brown powder.
Warning! Harmful if swallowed, inhaled, or absorbed through the skin. Causes eye, skin, and respiratory tract irritation. Possible risk of harm to the unborn child. May cause nervous system effects. The toxicological properties of this material have not been fully investigated.
Target Organs: Blood, central nervous system, liver.


Potential Health Effects
Eye: Causes eye irritation.
Skin: Causes skin irritation.
Ingestion: Harmful if swallowed. Ingestion of tellurium and its compounds has produced symptoms such as "garlic-like" odor of the breath and sweat, metallic taste, sleepiness, anorexia, cyanosis, restlessness, tremor, diminished reflexes, paralysis, convulsions, liver damage, and nausea
Inhalation: Causes respiratory tract irritation.
Chronic: Possible risk of harm to the unborn child. Prolonged or repeated exposure affects the nervous system.

Section 4 - First Aid Measures


Eyes: In case of contact, immediately flush eyes with plenty of water for a t least 15 minutes. Get medical aid.
Skin: In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
Ingestion: If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation: If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician: Treat symptomatically and supportively.

Section 5 - Fire Fighting Measures


General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or appropriate foam.
Flash Point: Not applicable.
Autoignition Temperature: Not applicable.
Explosion Limits, Lower:Not available.
Upper: Not available.
NFPA Rating: (estimated) Health: 2; Flammability: 1; Instability: 0

Section 6 - Accidental Release Measures


General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks: Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions. Provide ventilation.

Section 7 - Handling and Storage


Handling: Wash thoroughly after handling. Use with adequate ventilation. Minimize dust generation and accumulation. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Storage: Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.

Section 8 - Exposure Controls, Personal Protection


Engineering Controls: Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits
Chemical Name ACGIH NIOSH OSHA - Final PELs
Diphenyl ditelluride 0.1 mg/m3 TWA (except Hydrogen telluride and tellurium hexafluoride, as Te) (listed under Tellurium compounds, n.o.s.). 0.1 mg/m3 TWA (as Te, except Tellurium hexafluoride and Bismuth telluride) (listed under Tellurium compounds, n.o.s.).25 mg/m3 IDLH (as Te, except Tellurium hexafluoride and bismuth telluride) (list ed under Tellurium compounds, n.o.s.). 0.1 mg/m3 TWA (as Te) (listed under Tellurium compounds, n.o.s.).

OSHA Vacated PELs: Diphenyl ditelluride: No OSHA Vacated PELs are listed for this chemical.
Personal Protective Equipment
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin: Wear appropriate protective gloves to prevent skin exposure.
Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - Physical and Chemical Properties


Physical State: Powder
Appearance: orange to brown
Odor: stench
pH: Not available.
Vapor Pressure: Not available.
Vapor Density: Not available.
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point:64-67 deg C
Decomposition Temperature:Not available.
Solubility: Insoluble.
Specific Gravity/Density:Not available.
Molecular Formula:C12H10Te2
Molecular Weight:409.27

Section 10 - Stability and Reactivity


Chemical Stability: Stable at room temperature in closed containers under normal storage and handling conditions.
Conditions to Avoid: Dust generation, excess heat, excess light.
Incompatibilities with Other Materials: Strong oxidizing agents.
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, tellurium fumes.
Hazardous Polymerization: Has not been reported

Section 11 - Toxicological Information


RTECS#:      
CAS# 32294-60-3 unlisted.
LD50/LC50:
Not available.

Carcinogenicity:
CAS# 32294-60-3: Not listed by ACGIH, IARC, NTP, or CA Prop 65.

Epidemiology: No reports of serious illness in workers exposed to Te & its compounds in industry were identified. Complaints & findings, including anorexia, nausea, drowsiness, metallic taste, & garlic-like odor to breath & sweat, are major negative effects reported.
Teratogenicity: Studies have found that diphenyl ditelluride can be teratogenic to rat fetuses and toxic for dams. The late fetal stages of rat prenatal development appeared uniquely sensitive to organic tellurium exposure.
Reproductive Effects: No information found
Mutagenicity: No information found
Neurotoxicity: Diphenyl ditelluride is extremely neurotoxic and even compounds that release the Te atom slowly may represent a neurotoxic time bomb for mammals.
Other Studies:

Section 12 - Ecological Information

No information available.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

US DOT Canada TDG
Shipping Name: DOT regulated - small quantity provisions apply (see 49CFR173.4) Tellurium compound, n.o.s.
Hazard Class: 6.1
UN Number: UN3284
Packing Group: III

Section 15 - Regulatory Information

US FEDERAL

TSCA
     CAS# 32294-60-3 is not listed on the TSCA inventory. It is for research and development use only.
Health & Safety Reporting List
     None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
     None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
     None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
     None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
     None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances
     None of the chemicals in this product have a TPQ.
Section 313      No chemicals are reportable under Section 313.
Clean Air Act:
     This material does not contain any hazardous air pollutants.
     This material does not contain any Class 1 Ozone depletors.
     This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
     None of the chemicals in this product are listed as Hazardous Substances under the CWA.
     None of the chemicals in this product are listed as Priority Pollutants under the CWA.
     None of the chemicals in this product are listed as Toxic Pollutants under the CWA.
OSHA:
     None of the chemicals in this product are considered highly hazardous by OSHA.
STATE
     CAS# 32294-60-3 can be found on the following state right to know lists: California, (listed as Tellurium compounds, n.o.s.), Minnesota, (listed as Tellurium compounds, n.o.s.).

California Prop 65

California No Significant Risk Level: None of the chemicals in this product are listed.

European/International Regulations

European Labeling in Accordance with EC Directives
Hazard Symbols:
     XN
Risk Phrases:

     R 20/21/22 Harmful by inhalation, in contact with skin and if
     swallowed.

Safety Phrases:

     S 36/37 Wear suitable protective clothing and gloves.

WGK (Water Danger/Protection)

     CAS# 32294-60-3: No information available.
Canada - DSL/NDSL
None of the chemicals in this product are listed on the DSL or NDSL list.
Canada - WHMIS
     This product has a WHMIS classification of D1B.
This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all of the information required by those regulations.
Canadian Ingredient Disclosure List
     CAS# 32294-60-3 (listed as Tellurium compounds, n.o.s.) is listed on the Canadian Ingredient Disclosure List.

Section 16 - Additional Information

MSDS Creation Date: 1/04/2000
Revision #5 Date: 11/20/2008

The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no event shall Fisher be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if Fisher has been advised of the possibility of such damages.