NYSE MKT: UAMY

 UNITED STATES ANTIMONY CORPORATION
 
   
 

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SAFETY DATA SHEET (SDS)

Antimony Trioxide MONTANA BRAND, 50 lb, 25 kg & less than 1,000 lb containers

 

Version 2.0                                            Revision Date:  05/27/15                             Print Date:  05/27/15

SECTION 1. PRODUCT AND COMPANY IDENTIFICATION

            Product name:                         Antimony Trioxide, all grades

 

                                                           MONTANA BRAND HT                  MONTANA BRAND LT

                                                           MONTANA BRAND HTW               MONTANA BRAND LTW

                                                           MONTANA BRAND MP                 MONTANA BRAND VF

                                                           MONTANA BRND MPW                MONTANA BRAND VFW         

 

 

            Common Names:                     Antimony Oxide, Sb203, Antimony (III) oxide, Antimony trioxide

 

            Company:                               United States Antimony Corporation

                                                           47 Cox Gulch  P.O. Box 643

                                                           Thompson Falls, MT  59873

                                                           United States of America

 

                                                           Telephone:  (US) +1 406-827-3523

                                                           Fax:  (US) +1 406-827-3543

 

            Emergency telephone number:          (US) +1 406-827-3523

           

            CHEMTREC                           (800) 424-9300

 

            Product Uses:                         Flame retardant synergist, porcelain opacifier, glass fining agent, catalyst, electronics

 

            Package Size:                         50 lb bags, 25 kg bags, less than 1,000 lb container

SECTION 2. HAZARDS IDENTIFICATION

     Emergency Overview

            OSHA Hazards

Limited evidence of a carcinogenic effect.

 

Target Organs

Lungs

 

GHS Classification

Eye irritation (Category 2B)

Skin irritation (Category )

Respiratory irritation (Category )

Harmful if swallowed (Category )

Carcinogenicity (Category 2)

Acute aquatic toxicity (Category 3)

 

GHS Label elements, including precautionary statements

 

Pictogram                                

           

            Signal word                             Warning

 

Hazard statement(s)

H315 + H320                            Causes skin and eye irritation.

H                                            Harmful if swallowed

H351                                       Suspected of causing cancer.

H402                                       Harmful to aquatic life.

 

Precautionary statement(s)

P281                                       Use personal protective equipment as required.

P 306 + P351 + P338         IF IN EYES:  Rinse cautiously with water for several minutes.  Remove contact lenses, if present and easy to do so.  Continue rinsing.

P280                                       Wear protective gloves/protective clothing

P284                                       Wear respiratory protection

 

 

HMIS Classification

Health Hazard:                  2

Chronic Health Hazard:           *

Flammabiltiy:                   0

Physical Hazards:               0

 

NFPA Rating

Health Hazard:                 2

Fire:                          0

Reactivity Hazard               0

 

Potential Health Effects

 

Inhalation:                              May cause respiratory tract irritation.

Skin:                                  May cause skin irritation.

Eyes:                                  May cause eye irritation.

Ingestion:                               May be harmful if swallowed.

 

SECTION 3. COMPOSITION/INFORMATION ON INGREDIENTS

 

            Chemical Family                        Non-ferrous metal oxide

 

 

Chemical Name

Formula

Molecular Wt.

CAS No.

Weight %

Antimony oxide

Sb2O3

291.52 g/mol

1309-64-4

>=99’7

Arsenic

As

74.92 g/mol

13510-46-8

<0.1% (as As)

Lead

Pb

207.2 g/mol

1317-36-8

<0.1 (as Pb)

 

 

 

            Synonyms (common names) are provided in Section 1

 

SECTION 4. FIRST AID MEASURES

 

General advice

Move out of dangerous area.  Consult a physician.  Show this Safety Data Sheet to the doctor in attendance.

If inhaled

If breathed in, move person to fresh air.  If not breathing, give artificial respiration.  Consult a physician.

In case of skin contact

Wash off with soap with plenty of water for at least 15 minutes.  Consult a physician.

In case of eye contact

Rinse thoroughly with plenty of water for at least 15 minutes.  Consult a physician.

If swallowed

Never give anything by mouth to an unconscious person.  Rinse mouth with water.  Consult a physician.

SECTION 5.  FIREFIGHTING MEASURES

Conditions of flammability

Not flammable or combustible.

Suitable extinguishing media

Use extinguishing agent suitable for type of surrounding fire.

Hazardous combustion products

Fumes of antimony oxide, arsenic oxide, and lead oxide

Special protective equipment for firefighters

Wear self-contained breathing apparatus, pressure demand, MSHA/NIOSH approved or equivalent, and full protective gear.

 

Explosion Data

Sensitivity to Mechanical Impact     Not sensitive

Sensitivity to Static Discharge         Not sensitive

 

SECTION 6.  ACCIDENTAL RELEASE MEASURES

Personal precautions

Use personal protective equipment.  Avoid dust formation.  Avoid breathing dust, vapors, mist or gas.  Ensure adequate ventilation.  Evacuate personnel to safe areas.

Environmental precautions

Prevent further leakage or spillage if safe to do so.  Do not let product enter drains.  Discharge to the environment must be avoided.

Methods and materials for containment and cleaning up

Prevent large quantities of this product from contacting vegetation or waterways.  Cover with plastic sheet to prevent spreading.  Vacuum up, or sweep and shovel up without creating dust and transfer to properly labeled containers.  Keep in suitable closed containers for disposal according to Federal, State and local laws.

SECTION 7.  HANDLING AND STORAGE

Precautions for safe handling

Avoid contact with skin and eyes.  Avoid formation of dust and aerosols.

Provide appropriate exhaust ventilation at places where dust is formed.

Conditions for safe storage

Keep in tightly closed, properly labeled containers in a dry and well-ventilated place.

SECTION 8.  EXPOSURE CONTROLS/PERSONAL PROTECTION

Components with workplace control parameters

 

Components

 

CAS-No.

Value

Control Parameters

Basis

Remarks

Suspected human carcinogen

 

Antimony trioxide

 

1309-64-4

TWA

0.5 mg/m3

USA. Occupational Exposure Limits (OSHA) – Table Z-1 Limits for Air Contaminants

 

 

TWA

 

0.5 mg/m3

USA. OSHA – Table Z-1 Limits for Air Contaminants – 1910.1000

 

Pneumoconiosis, Lung cancer.  Exposure by all routes should be carefully controlled to levels as low as possible.  Suspected human carcinogen

 

 

TWA

 

0.5 mg/m3

USA. Occupational Exposure Limits (OSHA) – Table Z-1 Limits for Air Contaminants

 

 

TWA

 

0.5 mg/m3

USA. OSHA – Table Z-1 Limits for Air Contaminants – 1910.1000

 

 

TWA

 

0.5 mg/m3

USA. NIOSH Recommended Exposure Limits

     Personal protective equipment

 

Respiratory protection

Where risk assessment shows air-purifying respirators are appropriate wear a NIOSH/MSHA (US) or CEN (EU) approved dust respirator fitted with type N100 (US) or type P3 (EN 143) (EU) dust cartridges as a back-up to engineering controls.  A respiratory protection program that meets OSHA 1910.134 and ANSI Z88.2 requirements must be followed whenever workplace conditions warrant a respirator’s use.

Hand protection

Chemical resistant protective gloves

Eye protection

Safety glasses with side-shields conforming to EN 166.  Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166 (EU).

Skin and body protection

Impervious clothing.  The type of protective equipment must be selected according to the concentration and amount of the dangerous substance at the specific workplace.

Hygiene measures

Handle in accordance with good industrial hygiene and safety practice.

Wash hands thoroughly before breaks and at the end of the day.

Contaminated clothing should not be allowed out of the workplace.

Wash contaminated clothing before reuse.

Keep work areas clean.

Do not eat, drink, chew gum, use tobacco products, or apply cosmetics in work areas.

SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES

Appearance

        Form                                       Powder

        Color                                       White

        Odor                                       Odorless

        Odor threshold                        not applicable

Safety data

pH                                          not applicable

Melting/freezing point               655°C (1,211°F)

Boiling point                            1,425°C (2,594°F)

Flash point                              not applicable

Evaporation rate                      not applicable

Flammability                            non-combustible

Flammability Limit in Air

     Upper Flammability Limit     non-combustible

     Lower Flammability Limit     non-combustible

Vapor pressure                       none at normal conditions

Vapor density                          no information available

Bulk density                            ≈60 lbs.ft3

Specific gravity                        5.67 g/cm3

Water solubility                        370±37 µg/L

Solubility in other solvents        no information available

Partition coefficient                   not applicable

Auto ignition temperature          not applicable

Decomposition temperature     does not decompose

Viscosity, kinematic                 not applicable

Viscosity, dynamic                   not applicable

Explosive properties               non-explosive

Oxidizing properties                non-oxidizing

Molecular weight                      291.52 g/mol

Kst                                           St 0 (0 bar m/s)

SECTION 10. STABILITY AND REACTIVITY

 

Reactivity                                 None under normal use conditions

Chemical stability                    Stable under normal conditions

Possibility of hazardous reactions         Reaction with strong reducing agents can produce toxic and flammable stibine gas.

Conditions to avoid                  Strong acids

                                                Strong bases

                                                Strong oxidizing agents

                                                Strong reducing agents

                                                Hot perchloric acid

Incompatible materials             Strong reducing agents

                                                Strong oxidizing agents

Hazardous decomposition products      Hazardous decomposition products formed under fire conditions: Fumes of antimony oxide, arsenic 
  oxide and lead oxide

 

SECTION 11. TOXICOLOGICAL INFORMATION

Acute toxicity

Oral LD50

LD50 Oral – rat >34,600 mg/kg

 

Inhalation LC50

No data available

 

Dermal LD50

LD50 Dermal – rabbit >2,000 mg/kg

 

Other information on acute toxicity

LD50 Intraperitoneal – rat 3,250 mg/kg

LD50 Intraperitoneal – mouse 172 mg/kg

 

Skin corrosion/irritation           May irritate skin

May cause temporary small itchy pustules (antimony measles) in hot and humid conditions.

 

Serious eye damage/irritation  May irritate eyes; Eyes – rabbit – Mild eye irritation – Draize Test

 

Respiratory or skin sensitizer   Not a respiratory nor skin sensitizer. (IAOIA Risk Assesment 2004 – 2005)

 

Information on toxicological effects

Symtoms                                 No information available

 

Delayed and immediate effects as well as chronic effects from short and long-term exposure

 

Acute effects                            Gastro-intestinal distress

Chronic toxicity

Prolonged and excessive inhalation exposures to antimony trioxide may result in respiratory effects, antimony pneumoconiosis, pulmonary fibrosis, inflammation of the lungs, airway obstruction, broncospasms, reproductive effects, gastrointestinal upset, liver effects, and neurological effects (muscle weakness, subnormal gait).

Prolonged and excessive oral exposure may result in gastrointestinal discomfort and ulcers, blood effects, liver effects, neurological effects inflammation of the mucous membranes and stomatitis.

In a recent 90 day oral study in male and female rats, no adverse effects were observed at doses of 1000, 5000, and 20000 ppm.  The No Adverse Effect Level for antimony trioxide was 20000 ppm for both sexes.

In a developmental study in Sprague-Dewley rats consisting of three treatment groups and a control group, each containing 26 females at doses of 2.6, 4.4, and 6.3 mg/m3, no developmental effects were observed.  The LOAEL for material toxicity was established at 2.6 mg/m3.  The NOEL for developmental toxicity was 6.3 mg/m3, the highest exposure level evaluated.

 

Mutagenicity                            no data available

 

Carcinogenicity

 

Carcinogenicity – rat – Inhalation

Tumorigenic:  Carcinogenic by RTECS criteria.  Respiration: Lungs, Thorax, Tumors Liver: Tumors

 

Limited evidence of carcinogenicity in animal studies.

 

IARC      Class 2B: Possibly carcinogenic to humans (antimony)

              Class2A: Probably carcinogenetic to humans (lead)

              Class 1: Carcinogenetic to humans (arsenic)

 

NTP       No component of this product present at levels greater than or equal to 0.1% is identified as a known or anticipated carcinogen by NTP.

 

OSHA    No component of this product present at levels greater than or equal to 0.1% is identified as a known or anticipated carcinogen by OSHA.

 

Antimony trioxide has been classified by IRAC as a Class 2B. An IARC 2B material exhibits sufficient evidence in animal tests to be a possible human carcinogen.  Antimony oxide production has been determined by ACGIH to be a carcinogenic risk.  Antimony trioxide has been identified by the EPA as a suspected lung carcinogen.  Historical studies have concluded that exposure to elevated levels of antimony oxide may cause lung carcinoma.  However, the most recent study conducted under the EPA’s Voluntary Test Program by the Antimony Oxide Industry Association (AOIA), has concluded that antimony oxide does not cause lung cancer in rats at occupational exposure levels.  The levels tested ranged from 0.005 mg/m3 to 6 mg/m3 (from one tenth to ten times the OSHA TWA Threshold Limit Value.

 

Reproductive toxicity

Reproductive toxicity – rat – inhalation

Effects on Fertility:  Post-implant mortality (e.g., dead and/or resorbed implants per total number of implants).  Effects on Embryo or Fetus:  Fetal Death.

 

Teratogenicity                          no data available

 

Specific target organ toxicity (STOT) – single exposure (Globally Harmonized System)

                                                no data available

 

Specific target organ toxicity (STOT) – repeated exposure (Globally Harmonized System)

                                                See “Repeated dose toxicity” below

 

Repeated dose toxicity

 

Prolonged and excessive inhalation exposures to antimony trioxide may result in respiratory effects, antimony pneumoconiosis, pulmonary fibrosis, inflammation of the lungs, airway obstruction, broncospasms, reproductive effects, gastrointestinal upset, liver effects, and neurological effects (muscle weakness, subnormal gait).

Prolonged and excessive oral exposure may result in gastrointestinal discomfort and ulcers, blood effects, liver effects, neurological effects inflammation of the mucous membranes and stomatitis.

In a recent 90 day oral study in male and female rats, no adverse effects were observed at doses of 1000, 5000, and 20000 ppm.  The No Adverse Effect Level for antimony trioxide was 20000 ppm for both sexes.

In a developmental study in Sprague-Dewley rats consisting of three treatment groups and a control group, each containing 26 females at doses of 2.6, 4.4, and 6.3 mg/m3, no developmental effects were observed.  The LOAEL for material toxicity was established at 2.6 mg/m3.  The NOEL for developmental toxicity was 6.3 mg/m3, the highest exposure level evaluated.

 

Aspiration hazard                     no data available

Synergistic effects                    no data available

 

Symptoms of overexposure      Reddening of the eyes

                                                Skin irritation

                                                Eye irritation

                                                Respiratory irritation

                                                Shortness of breath

                                                Nose bleeding

                                                Headache

                                                Dizziness

                                                Nausea

                                                Vomiting

                                                Gastrointestinal discomfort

 

Further information                  The toxicological properties of this material have not been fully characterized.

 

NTP                                          US National Toxicity Program (NTP) Report on Carcinogens

                                                This product contains a component at levels greater than or equal to 0.1% that is identified as probable, possible, or confirmed human carcinogen by the US National Toxicology Program Report on Carcinogens.

 

IARC                                        US IARC Monographs on Occupational Exposure to Chemical Agents

                                                This product contains a component at levels greater than or equal to 0.1% that is identified as probable, possible, or confirmed human carcinogen by IARC.

 

OSHASP                                  US OSHA Specially Regulated Substances (29 CFR 1910.1001-1050

                                                This product contains a component at levels greater than or equal to 0.1% that is identified as probable, possible, or confirmed human carcinogen by OSHA.

 

 ACGIH                                      US ACGIH Threshold Limit Values

                                                This product contains a component at levels greater than or equal to 0.1% that is identified as probable, possible, or confirmed human carcinogen by ACGIH.

 

SECTION 12. ECOLOGICAL INFORMATION

 

Avoid releases to the environment.  Harmful to aquatic life.

 

Toxicity to fish, LC50                Species:  Pimephales promelas (flathead minnow)

                                                Dose:  21.9 mg/l

                                                Exposure time:  96 h

                                                For antimony ion (Sb+3)

 

Toxicity to daphnia and            Species:  Daphnia magna (Water flea)

other aquatic invertabrates,      Dose:  18.8 mg/l

LC50                                        Exposure time:  48 h

                                                For antimony ion (Sb+3)

 

Chronic toxicity to daphnia      Species:  Daphnia magna (Water flea)

And other aquatic                     Concentration:  1.74 mg/l

Invertebrates, NOEC                 Exposure time:  21 d

                                                For antimony ion (Sb+3)

 

Toxicity to algae, EbC50           Species: Raphidocelis subcapatata (freshwater green alga)

                                                Dose:  >2.4 mg/l

                                                Exposure time:  72 h

                                                For antimony ion (Sb+3)

 

 

Toxicity to algae, EbC50           Species: Raphidocelis subcapatata (freshwater green alga)

                                                Dose:  >2.4 mg/l

                                                Exposure time:  72 h

                                                For antimony ion (Sb+3)

 

Additional ecological               In a 42 day chronic sediment test with Hyalella azteca, growth effects after 28

Information                       days resulted in an NOEC of 124 mg/kg dw

 

                                   In a 42 day soil toxicity test with Enchytraeus albidus, mortality and reproduction resulted in the same NOEC and
        LOEC values of 760 mg/kg dw and 2,012 mg/kg dw, respectively.

 

                                                Inhibition action on bacteria (Pseudomonas putida):  At 3.5 mg/l no inhibiting action. 

 

Persistence and degradability

no data available

 

Bioaccumulative potential

no data available

 

Mobility in soil

no data available

 

PBT and vPvB assessment

no data available

 

SECTION 13. DISPOSAL CONSIDERATIONS

 

Dispose of waste material in compliance with all federal, state and local laws.

 

Dispose of waste in an approved waste disposal facility

 

SECTION 14. TRANSPORT INFORMATION

 

DOT (US)           UN-Number                                 3077

                          Proper shipping name                Environmentally hazardous substance, solid, n.o.s.

                          Class                                               9

                          Packing group                               III

                          Reportable Quantity (RQ)           1000 lb

 

IATA                  UN-Number                                  3077

                          Proper shipping name                 Environmentally hazardous substance, solid, n.o.s.

                          Class                                              9

                          Packing group                              III

 

Additional information

 

Regulated for transport in the United States only.  Not regulated for containers less than 1,000 lbs.

 

SECTION 15. REGULATORY INFORMATION

 

Federal regulatory information

 

OSHA Hazards                       This material is hazardous under the criteria of the  Federal OSHA Hazard Communications Standard 29CFR 1910.1200

 

                                                              Carcinogen

 

SARA Hazard category                           Acute Health Hazard

                                                              Chronic Health Hazard

 

US CERCLA                                           US Environmental Protection Agency (EPA); The 1980 Comprehensive Environmental Response, Compensation and Liability Act (CERCLA)

 

                                                              Reportable quantity (RQ)            1,000 lbs

 

                                                              Antimony Trioxide                     CAS     1309-64-4          >=99.7%

 

US SARA 313                        US Environmental Protection Agency (EPA); Title III of the Superfund Amendments and Reauthorization Act (SARA) of 1986 Section 313 Reportable Chemicals List, Toxic chemical listings and deminimis concentrations as amended by US Federal Register Final rules

 

                                                              Deminimis concentration:  1%

 

                                   This category listing is for chemicals listed under antimony compounds which are designated carcinogenic according to 29 CFR1910.1200(d)(4) which have a De Minimis concentration value of 1.0%

 

                                                              Antimony Trioxide                     CAS     1309-64-4          >=99.7%

 

US State Regulations

 

US MA RTK                         US.  The Commonwealth of Massachusetts Department of Public Health; Massachusetts Right-to-Know law; The Massachusetts Substance List, 105 CMR 670.000

 

                                                              Massachusetts hazardous substance

 

                                                              Antimony Trioxide                     CAS     1309-64-4          >=99.7%

 

US NJ RTK                          US.  New Jersey Department of Environmental Protection; Bureau of Hazardous Substances; New Jersey Right to Know L, Hazardous Substance List (P.L. 1983, C.135, NJSA 34:5A-1 et seq.

 

                                                              Hazardous substance

 

                                                              Antimony Trioxide                     CAS     1309-64-4          >=99.7%

 

US PA RTK                         US.  Commonwealth of Pennsylvania – Department of Labor and Industry; Pennsylvania Code Title 34, Labor and Industry Chapter 323

                                                              Environmental hazard, hazardous substance

                                                              Antimony Trioxide                     CAS     1309-64-4          >=99.7%

California Prop. 65                    WARNING!  This product contains a chemical known to the State of California to cause cancer.

                                    WARNING!  This product contains a chemical known to the State of California to cause birth defects or other reprocudtive harm.

 

                                                              Antimony Trioxide                     CAS     1309-64-4          >=99.7%

                                                              Carcinogen

 

                                                              Arsenic                                     CAS     7440-38-2          <0.1%

                                                              Developmental toxin

                                                              Female reproductive toxin

                                                              Male reproductive toxin

 

                                                              Lead                                         CAS     7439-92-1          <0.1%

                                                              Carcinogen

 

                                                              Lead                                         CAS     7439-92-1          <0.1%

                                                              Developmental toxin

                                                              Female reproductive toxin

                                                              Male reproductive toxin

 

 

The components of this product are reported in the following inventories:

 

TSCA                 Listed

DSL                   Listed

EINECS             Listed

AICS                  Listed

ENCS                 Listed

KECI                  Listed

PICCS                Listed

IECSC                Listed

 

SECTION 16. OTHER INFORMATION

 

No additional information

 

 

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