Cadmium Telluride







Product Name:   Cadmium Telluride

Formula:             CdTe

Supplier:             ESPI Metals

                            1050 Benson Way

                            Ashland, OR 97520

Telephone:          800-638-2581

Fax:                     541-488-8313

Email:                  This email address is being protected from spambots. You need JavaScript enabled to view it.

Emergency:         Infotrac 800-535-5053 (US) or 352-323-3500 (24 hour)

Recommended Uses:  Scientific Research




GHS Classification (29 CFR 1910.1200): Acute toxicity - oral, category 4, Acute toxicity - dermal, category 4, Acute toxicity - inhalation, category 4.

GHS Label Elements:


Signal Word: Warning

Hazard Statements: H302 Harmful if swallowed, H312 Harmful in contact with skin, H332 Harmful if inhaled.

Precautionary Statements: P261 Avoid breathing dust/fume, P264 Wash hands thoroughly after handling, P270 Do not eat, drink or smoke when using this product, P271 Use only outdoors or in a well-ventilated area, P280 Wear protective gloves/protective clothing/eye protection/face protection, P301+P312+P330 IF SWALLOWED: Rinse mouth. Call a POISON CENTER or doctor/physician if you feel unwell, P302+P352 IF ON SKIN: wash with plenty of soap and water, P304+P340 IF INHALED: Remove victim to fresh air and keep comfortable for breathing, P312 Call a POISON CENTER or doctor/physician if you feel unwell, P362+P364 Take off contaminated clothing and wash it before reuse, P501 Dispose of contents/container in accordance with local, state or federal regulations.




Ingredient:    Cadmium Telluride

CAS#:             1306-25-8

%:                  100

EC#:               215-149-9

Common Names and Synonyms: Cadmium monotelluride; telluroxocadmium.




General Measures: Remove patient from area of exposure.

INHALATION: Remove to fresh air, keep warm and quiet, give oxygen if breathing is difficult. Seek immediate medical attention.

INGESTION: Rinse mouth with water. Do not induce vomiting. Seek immediate medical attention. Never induce vomiting or give anything by mouth to an unconscious person.

SKIN: Remove contaminated clothing, wash affected area with soap and water. Seek medical attention. Wash contaminated clothing before reusing.

EYES: Flush eyes with lukewarm water, including under upper and lower eyelids, for at least 15 minutes. Seek medical attention.

Most Important Symptoms/Effects, Acute and Delayed: May cause irritation. See section 11 for more information.

Indication of Immediate Medical Attention and Special Treatment: No other relevant information available.




Extinguishing Media: Use suitable extinguishing agent for surrounding materials and type of fire.

Unsuitable Extinguishing Media: No information available.

Specific Hazards Arising from the Material: May release toxic fumes if involved in a fire.

Special Protective Equipment and Precautions for Firefighters: Wear full face, self-contained breathing apparatus and full protective clothing.




Personal Precautions, Protective Equipment, and Emergency Procedures: Wear appropriate respiratory and protective equipment specified in section 8. Isolate spill area and provide ventilation. Avoid contact with skin and eyes. Avoid breathing dust or fume.

Methods and Materials for Containment and Cleaning Up: Avoid dust formation. Cleanup spills with a vacuum system equipped with a HEPA filtration system and place in properly labeled closed containers. Special precautions must be taken when changing filters on HEPA vacuum cleaners used to clean up hazardous materials. Caution should be taken to minimize airborne generation of particulate and avoid contamination of air and water.

Environmental Precautions: Do not allow to enter drains or to be released to the environment.




Precautions for Safe Handling: Handle in a well-ventilated area in an enclosed, controlled process. Avoid creating dust. Ensure adequate ventilation if dusts are created. Do not breathe dust or fumes. Do not allow product to contact skin or eyes. Wash thoroughly before eating or smoking. See section 8 for information on personal protection equipment.

Conditions for Safe Storage: Store in a cool, dry area. Store material tightly sealed in properly labeled containers. See section 10 for more information on incompatible materials.




Exposure Limits:                       OSHA/PEL:             ACGIH/TLV:

Cadmium compounds (as Cd)       0.005 mg/m3            0.002 mg/m3 respirable

Tellurium compounds (as Te)         0.1 mg/m3               0.1 mg/m3

Engineering Controls: Ensure adequate ventilation to maintain exposures below occupational limits. Whenever possible the use of local exhaust ventilation or other engineering controls is the preferred method of controlling exposure to airborne dust and fume to meet established occupational exposure limits. Use good housekeeping and sanitation practices. Do not use tobacco or food in work area. Wash thoroughly before eating or smoking. Do not blow dust off clothing or skin with compressed air.

Individual Protection Measures, Such as Personal Protective Equipment:

   Respiratory Protection: NIOSH approved high efficiency particulate respirator.

   Eye Protection: Safety glasses

   Skin Protection: Impermeable gloves, protective work clothing as necessary.





Form:                  Pieces or powder

Color:                  Black

Odor:                   No data

Odor Threshold:  Not determined

pH:                                              N/A

Melting Point:                             1041 oC

Boiling Point:                              No data

Flash Point:                                 N/A

Evaporation Rate:                       N/A

Flammability:                              No data

Upper Flammable Limit:             No data

Lower Flammable Limit:             No data

Vapor Pressure:                          No data

Vapor Density:                            N/A

Relative Density (Specific Gravity):     5.85 g/cc @ 15 oC

Solubility in H2O:                         Insoluble

Partition Coefficient (n-octanol/water):   Not determined

Autoignition Temperature:         No data

Decomposition Temperature:     No data

Viscosity:                                     N/A




Reactivity: No specific test data available.

Chemical Stability: Stable under recommended storage conditions.

Possibility of Hazardous Reactions: No data

Conditions to Avoid: No data.

Incompatible Materials: Strong oxidizing agents.

Hazardous Decomposition Products: Cadmium oxides, tellurium oxides.




Likely Routes of Exposure: Inhalation, skin and eyes.

Symptoms of Exposure: Inhalation may cause cough, labored breathing, shortness of breath. Symptoms may be delayed.

Acute and Chronic Effects:

Cadmium Compounds: Acute, high-level (inhalation) exposures can be fatal, and those who survive may have impaired lung function for years after a single exposure. A lethal dose of cadmium oxide fume may be inhaled without sufficient discomfort to warn worker of exposure. Acute parenteral administration of cadmium to laboratory animals has resulted in severe testicular damage, including testicular atrophy and lowered androgen levels. Cadmium may affect the kidneys, lungs, reproductive system and blood.

Tellurium Compounds: Exposure to tellurium compounds may cause garlic odor of the breath and sweat, dryness of the mouth, metallic taste, somnolence, anorexia, and occasional nausea. Skin lesions in the form of scaly, itching patches and loss of sweat function have also been reported. Hydrogen telluride is highly toxic and has caused pulmonary irritation and hemolysis of red blood cells in animals; this gas is very unstable, however, and its occurrence as an actual industrial hazard is unlikely.

Acute Toxicity: LC50 inhalation - rat – 2.71 mg/L


Cadmium and Cadmium Compounds: NTP: K - Known to be carcinogenic   IARC: 1 - Carcinogenic to humans

To the best of our knowledge the chemical, physical and toxicological characteristics of the substance are not fully known.




Ecotoxicity: No data

Persistence and Degradability: No data

Bioaccumulative Potential: No data

Mobility in Soil: No data

Other Adverse Effects: Do not allow material to be released to the environment. No further relevant information available.




Waste Disposal Method:

Product: Dispose of in accordance with Federal, State and Local regulations.

Packaging: Dispose of in accordance with Federal, State and Local regulations.




UN Number:                           UN2570

UN Proper Shipping Name:   Cadmium compound (Cadmium Telluride)

Transport Hazard Class:       6.1

Packing Group:                      II

Marine Pollutant:                   No




TSCA Listed: Yes

DSL Listed: No

Regulation (EC) No 1272/2008 (CLP): Acute toxicity - oral, category 4, Acute toxicity - dermal, category 4, Acute toxicity - inhalation, category 4, Hazardous to the aquatic environment - acute hazard, category 1, Hazardous to the aquatic environment - chronic hazard, category 1.

WHMIS 2015 Classification: Acute toxicity.

HMIS Ratings: Health: 2     Flammability: 0     Physical: 0

NFPA Ratings: Health: 2     Flammability: 0     Instability: 0

Chemical Safety Assessment: A chemical safety assessment has not been carried out.




The information contained in this document is based on the state of our knowledge at the time of publication and is believed to be correct, but does not purport to be all inclusive and shall be used only as a guide. ESPI Metals makes no representation, warranty, or guarantee of any kind with respect to the information contained in this document or any use of the product based on this information. ESPI Metals shall not be held liable for any damages resulting from handling or from contact with the above product. Users should satisfy themselves that they have all current data relevant to their particular use.


Prepared by:             ESPI Metals

Revised/Reviewed:   December 2016