Selenium

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SAFETY DATA SHEET

 

 

1   PRODUCT AND SUPPLIER IDENTIFICATION

Product Name:    Selenium - powder, shot

Formula:             Se

 

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

 

 

2   HAZARDS IDENTIFICATION 

GHS Classification (29 CFR 1910.1200):   Not classified as hazardous

GHS Label Elements:

Signal Word: N/A

Hazard Statements: N/A

Precautionary Statements:   N/A

 

 

3   COMPOSITION/INFORMATION ON INGREDIENTS

Ingredient:       Selenium

CAS#:                7782-49-2

%:                     >99

EC#:                  034-001-00-2

 

 

4   FIRST AID MEASURES

General Measures: Remove patient from area of exposure.

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

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

SKIN: Remove contaminated clothing, brush material off skin, wash affected area with soap and water. Seek medical attention.

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.

 

 

5   FIREFIGHTING MEASURES

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 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 when necessary.

 

 

6   ACCIDENTAL RELEASE MEASURES

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 dust formation. Scoop up or vacuum using a vacuum system equipped with a HEPA filter. Place in properly labeled closed containers.

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

 

 

7   HANDLING AND STORAGE

Precautions for Safe Handling: Handle in an enclosed, controlled process. Avoid creating dust. Provide adequate ventilation if dusts are created. Avoid breathing dust or fumes. 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: Store in a sealed container. Store in a cool, dry area. Protect from oxidizers and halogens. See section 10 for more information on incompatible materials.

 

 

8   EXPOSURE CONTROLS AND PERSONAL PROTECTION

Exposure Limits:     Selenium (Selenium compounds, as Se)

OSHA/PEL:              0.2 mg/m3

ACGIH/TLV:             0.2 mg/m3

Engineering Controls: When working with finely divided powders, handle in a controlled, enclosed environment. 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.

Respiratory Protection: When potential exposures are above the occupational limits, approved respirators must be used.

Eye Protection: Safety glasses

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

 

 

9   PHYSICAL AND CHEMICAL PROPERTIES

Appearance:

Form:                    Shot or powder

Color:                    Gray to black

Odor:                     Odorless

Odor Threshold:    Not determined

pH:                                              N/A

Melting Point:                             217 oC

Boiling Point:                              684±1 oC

Flash Point:                                N/A

Evaporation Rate:                      N/A

Flammability:                             No data

Upper Flammable Limit:            No data

Lower Flammable Limit:            No data

Vapor Pressure:                         1 mm Hg @ 356 oC

Vapor Density:                            N/A

Relative Density (Specific Gravity):     4.28 - 4.81 g/cc @ 20 oC

Solubility in H2O:                         Insoluble

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

Autoignition Temperature:         No data

Decomposition Temperature:     No data

Viscosity:                                     N/A

 

 

10   STABILITY AND REACTIVITY

Reactivity: No data

Chemical Stability: Stable under recommended storage conditions.

Possibility of Hazardous Reactions: Under reducing conditions (i.e., any strong acid or base plus an active metal) or in the presence of nascent (freshly formed) hydrogen, highly toxic hydrogen selenide gas may be formed. At temperatures above the melting point corrosive selenium oxides may be generated.

Conditions to Avoid: Dusting conditions, high temperatures.

Incompatible Materials: Strong acids, bases, and oxidizers, halogen gases, sodium, potassium, nascent hydrogen.

Hazardous Decomposition Products: Selenium oxides, hydrogen selenide gas.

 

 

11   TOXICOLOGICAL INFORMATION

Likely Routes of Exposure: Inhalation, skin and eyes.

Symptoms of Exposure: Inhalation of elemental selenium dusts may cause irritation and congestion.

Acute and Chronic Effects: Elemental selenium dusts may cause irritation of the respiratory tract. Other symptoms include metallic taste, pallor, irritability, fatigue and garlic odor of breath. Selenium is an essential trace element in humans and animals. Many selenium compounds, including selenium dioxide which is a decomposition product of elemental selenium, are toxic.

Acute Toxicity: LD50 oral - rat - 6700 mg/kg

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.

 

 

12   ECOLOGICAL INFORMATION

Ecotoxicity: No data

Persistence and Degradability: No data

Bioaccumulative Potential: No data

Mobility in Soil: No data

Other Adverse Effects: No further relevant information available.

 

 

13   DISPOSAL CONSIDERATIONS

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.

 

 

14   TRANSPORT INFORMATION

Shipping Regulations: Not regulated

UN Number:                            N/A

UN Proper Shipping Name:    N/A

Transport Hazard Class:        N/A

Packing Group:                       N/A

Marine Pollutant:                    No

 

 

15   REGULATORY INFORMATION

TSCA Listed: All components are listed.

Regulation (EC) No 1272/2008 (CLP): N/A

Canada WHMIS Classification (CPR, SOR/88-66): N/A

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

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

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

 

 

16   OTHER INFORMATION

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:   July 2015