ANTIMONY

SYNONYMS: ANTIMONIO (Spanish); ANTIMONY BLACK; ANTIMONY METAL; ANTIMONY REGULUS; C.I. 77050; EINECS No. 231-146-5; SILVER GLO BP; SILVER GLO 3KBP; SILVER GLO 33BP; STIBIUM; THERMOGUARD CPA

IDENTIFICATION:

CAS: 7440-36-0

DOT ID: UN1549 (inorganic, solid, n.o.s.); UN2871 (powder); UN3141 (inorganic liquid, n.o.s.)

Hazard Class or Division: 6.1 (POISONOUS/TOXIC MATERIALS)

ERG Guide: 157 (UN1549, UN3141); 170 (UN2871)

Formula: Sb

RTECS No.: CC4025000

Properties: Brittle solid; scale-like crystals P powder. Silver-white lustrous solid; dark gray lustrous powder. Moderate explosion hazard in the form of dust when exposed to flame. Poisonous gases released when exposed to heat or fire.

Uses: In many alloys including antifriction; increases the hardness of lead.

HEALTH & SAFETY INFORMATION

• IDLH: 50 mg[Sb]/m3

• The U. S. Department of Health and Human Services, the International Agency for Research on Cancer (IARC), and the Environmental Protection Agency (EPA) have not classified antimony as to its human carcinogenicity. Lung cancer has been observed in some studies of rats that breathed high levels of antimony. No human studies are available.

• NIOSH Criteria Document : NIOSH 78-216

• OSHA Table Z-1 Air Contaminant

• Exposure to antimony at high level s can result in a variety of adverse health effects. Breathing high levels for a long time can irritate your eyes and lungs and can cause heart and lung problems, stomach pain, diarrhea, vomiting, and stomach ulcers. In short-term studies, animals that breathed very high levels of antimony died. Animals that breathed high levels had lung, heart, liver, and kidney damage. Repeated exposure may cause headache, sleeplessness,  dizziness, metallic taste, ulcers, weight loss, nausea, vomiting, diarrhea, and loss of sense of smell; pain and tightness in chest; heart and liver damage; and skin sores and ulcers. In long-term studies, animals that breathed very low levels of antimony had eye irritation, hair loss, lung damage, and heart problems. Problems with fertility were also noted. In animal studies, problems with fertility have been seen when rats breathed very high levels of antimony for a few months. Ingesting large doses of antimony can cause vomiting. It is unknown what other effects may be caused by ingesting it. Longterm animal studies have reported liver damage and blood changes when animals ingested antimony. Antimony can irritate the skin if it is left on it. Antimony can have beneficial effects when used for medical reasons. It has been used as a medicine to treat people infected with parasites.

Exposure Limits:

• ACGIH TLV: 0.5 mg[Sb]/m3 TWA

• NIOSH REL: 0.5 mg[Sb]/m3 TWA

• OSHA PEL: 0.5 mg[Sb]/m3 TWA

Respirator: 5 mg/m3: DMXSQ [if not present as a fume] (any dust and mist respirator except single-use and quarter mask respirators) P SA (any supplied-air respirator) 12.5 mg/m3: SA:CF (any supplied-air respirator operated in a continuous-flow mode); PAPRDM [if not present as a fume] (any powered, airpurifying respirator with a dust and mist filter) 25 mg/m3: HiEF (any air-purifying, full-facepiece respirator with a high-efficiency particulate filter) SAT:CF (any supplied-air respirator that has a tightfitting facepiece and is operated in a continuous-flow mode) P PAPRTHiE (any powered, air-purifying respirator with a tight-fitting facepiece and a highefficiency particulate filter)   SCBAF (any selfcontained breathing apparatus with a full facepiece)   SAF (any supplied-air respirator with a full facepiece). 50 mg/m3: SA:PD,PP (any supplied-air respirator operated in a pressure-demand or other positivepressure mode). Emergency or Planned Entry into Unknown Concentrations or IDLH Conditions SCBAF:PD,PP (any self-contained breathing apparatus that has a full faceplate and is operated in a pressuredemand or other positive-pressure mode) SAF:PD,PP:ASCBA (any supplied-air respirator that has a full facepiece and is operated in a pressuredemand or other positive-pressure mode in combination with an auxiliary self-contained breathing apparatus operated in a pressure-demand or other positive- pressure mode). Escape: HiEF (any airpurifying, full-facepiece respirator with a highefficiency particulate filter) P SCBAE (any appropriate escape-type, self-contained breathing apparatus).

Reactivity: Violent reaction with strong oxidizers, strong acids. Forms explosive mixtures with chloric and perchloric acid. Contact with oxidizers, acids, especially halogenated acids, produce toxic stibine gas (antimony hydride). Mixtures with nitrates or halogenated compounds may cause combustion. Decomposes when heated above 190°C, producing toxic and corrosive fumes of ammonia and nitrogen oxides.

FIRE INFORMATION: If material or contaminated runoff enters waterways, notify downstream users of potentially contaminated water.

Hazard Classifications: (powder)

Health Hazard (Blue) . . . . . . . . . . . . . . 2

Flammability (Red) . . . . . . . . . . . . . . . 2

Reactivity (Yellow) . . . . . . . . . . . . . . . . 1

FIRST AID: Inorganic, n.o.s.; inorganic liquid compounds, n.o.s.: Move victim to fresh air. Call emergency medical care. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion, or skin contact) may be delayed. Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect themselves. Powder: Move victim to fresh air. Call emergency medical care. Apply artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. Keep victim warm and quiet. Ensure that medical personnel are aware of the material(s) involved, and take precautions to protect themselves.

ENVIRONMENTAL REGULATIONS

• Clean Air Act: Section 307 Priority Pollutants.

• Clean Water Act: Section 313 Priority Chemicals; Toxic Pollutant (Section 401.15).

• RCRA Section 261 Hazardous Constituents: Waste number not listed.

• RCRA Land Ban Waste

• Safe Drinking Water Act: MCL, 0.006 mg/L; MCLG, 0.006 mg/L.

• RCRA Universal Treatment Standards: Wastewater (mg/L), 1.9; Nonwastewater (mg/L), TCLP

• RCRA Ground Water Monitoring List: Suggested methods (PQL μ g/L): 6010(300); 7040(2,000); 7041(30)

• EPCRA Section 304: Reportable Quantity (RQ): CERCLA, 5000 lb (2270 kg) only if the diameter of pieces of solid metal has a diameter equal to or > 0.004 in.

• EPCRA Section 313: Form R de minimis concentration reporting level: 1.0%.

• California LOL: DGIMNO

• WHMIS, Ingredients Disclosure List (Canada): 1%