Aluminum Selenide







Product Name:    Aluminum Selenide

Formula:             Al2Se3

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 2, Specific target organ toxicity - repeated exposure, category 2.

GHS Label Elements:

pictogramskullcrossbones     pictogramhealthhazard   

Signal Word: Danger

Hazard Statements: H300 Fatal if swallowed, H373 May cause damage to central nervous system, hair, nails and skin through prolonged or repeated exposure.

Precautionary Statements: P260 Do not breath dust/fume/gas/mist/vapors/spray, P264 Wash hands thoroughly after handling, P270 Do not eat, drink or smoke when using this product, P301+P310+P330 IF SWALLOWED: Rinse mouth. Immediately call a POISON CENTER or doctor/physician, P314 Get medical advice/attention if you feel unwell, P405 Store locked up, P501 Dispose of contents/container in accordance with local, state or federal regulations.




Ingredient:       Aluminum Selenide

CAS#:                1302-82-5

%:                     100

EC#:                  215-110-6




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: Quickly wipe material from mouth and rinse with water. Do not induce vomiting. Seek medical attention immediately.

SKIN: Remove contaminated clothing. Brush off any visible solids. Wash the affected area with water for at least 15 minutes. Seek medical attention.

EYES: Immediately flush eyes with copious amounts of water, including under eyelids for at least 10-15 minutes. A victim may need assistance in keeping their eyelids open. Seek immediate 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 Class D dry powder extinguishing agent.

Unsuitable Extinguishing Media: Do not use water.

Specific Hazards Arising from the Material: May react with water liberating flammable and toxic hydrogen selenide gas. May emit toxic selenium oxide fumes under fire conditions.

Special Protective Equipment and Precautions for Firefighters: Full face, self-contained breathing apparatus and full protective clothing to prevent contact with skin and eyes.




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

Methods and Materials for Containment and Cleaning Up: Avoid raising dust. Scoop or vacuum up using a vacuum system equipped with a HEPA filter. Place in properly labeled closed containers.

Environmental Precautions: Do not flush to sewer, stream, or other bodies of water. Do not allow to enter drains or to be released to the environment.




Precautions for Safe Handling: Handle in an enclosed, controlled process. Avoid creating dust. Avoid breathing dust or fumes. Provide adequate ventilation if dusts are created. Avoid contact with skin and eyes. Wash thoroughly before eating or smoking. See section 8 for information on personal protection equipment.

Conditions for Safe Storage, Including Any Incompatibilities: Store in tightly-sealed containers under argon. Storage containers should be properly labeled and kept in a cool, dry, well-ventilated area. Protect from water and moisture. See section 10 for more information on incompatible materials.




Exposure Limits:                 OSHA/PEL:                                ACGIH/TLV:

Aluminum Selenide                 No exposure limit established       No exposure limit established

Selenium compounds (as Se)  0.2 mg/m3                                  0.2 mg/m3

Appropriate Engineering Controls: Handle in an enclosed, controlled process. 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: Wear a NIOSH/MSHA approved respirator when high concentrations are present.

   Eye Protection: Safety glasses

   Skin Protection: Wear impermeable gloves, protective work clothing as necessary.





Form:                  Pieces

Color:                  No data

Odor:                   Not determined

Odor Threshold:  Not determined

pH:                                              N/A

Melting Point:                             No data

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):     3.437 g/cc

Solubility in H2O:                        Decomposes

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: May react with water or acids liberating flammable and toxic hydrogen selenide gas.

Conditions to Avoid: No data

Incompatible Materials: Water/moisture, oxidizing agents.

Hazardous Decomposition Products: Aluminum oxides, selenium oxides, hydrogen selenide.




Likely Routes of Exposure: Inhalation, skin and eyes.

Symptoms of Exposure: Symptoms of exposure to selenium compounds may include hair and nail brittleness and loss, gastrointestinal disturbances, and central nervous system abnormalities. May cause a garlic-like odor to the breath and sweat.

Acute and Chronic Effects:

Aluminum: There is strong evidence that aluminum (compounds) can cause irritation following exposure via either inhalation or injection. Modest evidence of an effect exists for reproductive toxicity following oral exposure, for neurological toxicity following either oral or injection exposure, and for bone toxicity following injection exposure. All other effects were judged to be supported by either limited evidence or no clear evidence at all.1

Selenium Compounds: Inhalation of selenium compounds may cause respiratory, gastrointestinal, and cardiovascular effects, as well as irritation of the skin and eyes. Fatalities following inhalation exposure to selenium compounds have not been reported. Most of the information concerning effects in humans following exposure to selenium and selenium compounds is for exposure via ingestion. Symptoms of chronic selenium toxicity may include hair and nail brittleness and loss, gastrointestinal disturbances, skin rash, garlic breath odor, fatigue, irritability, nervous system abnormalities, and possible damage to heart and liver. Water-soluble selenium compounds are probably more toxic than elemental selenium. Selenium is an essential trace element in humans and animals.

Acute Toxicity: No data

Carcinogenicity: NTP: Not identified as carcinogenic   IARC: Not identified as carcinogenic

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




Ecotoxicity: LC50 Salmo gairdneri (Rainbow trout) 8,100 ppb/96 hr /Selenium salts

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:                            UN3283

UN Proper Shipping Name:     Selenium compound, solid, n.o.s. (Aluminum Selenide)

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 2, Specific target organ toxicity - repeated exposure, category 2, Hazardous to the aquatic environment - acute hazard, category 1, Hazardous to the aquatic environment - chronic hazard, category 1.

WHMIS 2015 Classification: Acute toxicity, Specific target organ toxicity - repeated exposure.

HMIS Ratings: Health: 3     Flammability: 0   Physical: 1

NFPA Ratings: Health: 3     Flammability: 0   Instability: 1

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




1Krewski et al. (2007) Human Health Risk Assessment for Aluminum, Aluminum Oxide, and Aluminum Hydroxide,

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:   June 2015