Antimony Powder







Product Name:    Antimony Powder

Formula:             Sb

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):   Not classified as hazardous

GHS Label Elements:

Signal Word: N/A

Hazard Statements: N/A

Precautionary Statements:   N/A




Ingredient:     Antimony powder

CAS#:              7440-36-0

%:                   100

EC#:                231-146-5




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, brush material off skin, wash affected area with soap and water. Seek medical attention if symptoms develop.

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

Most Important Symptoms/Effects, Acute and Delayed: May cause irritation and systemic poisoning with symptoms including abdominal pain, nausea, dizziness and dry throat. See section 11 for more information.

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




Extinguishing Media: Use gentle surface application of Class D or dry, inert granular material such as sand to cover and ring the burning material.

Unsuitable Extinguishing Media: Do not use water, carbon dioxide or halogenated extinguishing agents.

Specific Hazards Arising from the Material: When heated or in contact with acid, may release toxic fumes. Antimony powder with a particle size range of less than 74 microns is classified as weakly explosive by the U.S. Bureau of Mines, report RI-6516. When present as a dust cloud, will not explode readily in air and are not easily ignited by sparks.

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 breathing dust or fume. Avoid contact with skin and eyes. Eliminate all sources of ignition.

Methods and Materials for Containment and Cleaning Up: Sprinkle damp sand over spill. Scoop up and carefully transfer to a properly labeled closed container. Avoid creating dust.

Environmental Precautions: 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: Store in a cool, dry area. Store material tightly sealed in properly labeled containers. Store away from oxidizers, acids or halogens. Protect from heat. See section 10 for more information on incompatible materials.




Exposure Limits:     Antimony

OSHA/PEL:              0.5 mg/m3

ACGIH/TLV:             0.5 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.

Individual Protection Measures, Such as Personal Protective Equipment:

Respiratory Protection: Where airborne exposures may exceed OSHA/ACGIH permissible air concentrations, the minimum respiratory protection recommended is negative pressure air purifying respirator with cartridges that are NIOSH/MSHA approved against dusts, fumes and mists having a TWA less than 0.05 mg/m3

Eye Protection: Safety glasses

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





Form:                    Powder

Color:                    Gray

Odor:                     Odorless

Odor Threshold:    Not determined

pH:                                              N/A

Melting Point:                             630.5 oC

Boiling Point:                              1750 oC

Flash Point:                                 N/A

Evaporation Rate:                       N/A

Flammability:                             No data

Upper Explosive Limit:               Not determined

Lower Explosive Limit:               0.420 oz/ft3

Vapor Pressure:                          1 mm Hg @ 886

Vapor Density:                            N/A

Relative Density (Specific Gravity):     6.684 g/cc @ 25 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 data

Chemical Stability: Stable under recommended storage conditions.

Possibility of Hazardous Reactions: Antimony may react violently with halogens such as fluorine, chlorine, or bromine. Antimony with iodine produces heat, which can cause flame or even explosion if quantities are great enough. Finely divided antimony on contact with acid emits toxic fumes of antimony hydride. Antimony will react with nascent (freshly formed) hydrogen to form stibine (SbH3) which is extremely toxic. Antimony can react violently with NH4NO3, BrN3, BrF3, HClO3, ClO, ClF3, HNO3, KNO3, KMnO4, NaNO3, sodium, sodium peroxide, and oxidizing agents.

Conditions to Avoid: Dusting conditions. Avoid high temperatures.

Incompatible Materials: Oxidizing agents, acids, halogens, nitrates, potassium permanganate, potassium and sodium peroxide.

Hazardous Decomposition Products: Antimony oxide fume, stibine.




Likely Routes of Exposure: Inhalation, skin and eyes.

Symptoms of Exposure:  May cause irritation and possibly systemic effects including a metallic taste in the mouth, vomiting, colic, loss of appetite and weight, and diarrhea.

Acute and Chronic Effects:  Acute systemic exposure to antimony compounds may cause loss of hair, dry scaly skin, and weight loss. Damage to the heart, liver, and kidneys can occur, and death from myocardial failure may follow. Fatalities from antimony poisoning are rare. The toxicity of elemental antimony has not been well studied, however, due to insolubility most elements in their metallic state are not considered to be serious health hazards.

Acute Toxicity: LD50 oral - rat - 7500mg/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.




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:                            UN2871

UN Proper Shipping Name:    Antimony Powder

Transport Hazard Class:        6.1

Packing Group:                       III

Marine Pollutant:                    Yes

Special Precautions:              Warning: Toxic substances.




TSCA Listed: All components are listed.

Regulation (EC) No 1272/2008 (CLP): Hazardous to the aquatic environment - acute hazard, category 2, Hazardous to the aquatic environment - chronic hazard, category 2.

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

HMIS Ratings: Health: 2     Flammability: 1     Physical: 0

NFPA Ratings: Health: 2     Flammability: 1     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:   August 2015