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Antimony |
CAS 7440-36-0 |
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Sb |
RTECS CC4025000 |
Synonyms & Trade Names
Antimony metal, Antimony powder, Stibium |
DOT ID & Guide
1549 157 (inorganic compounds, n.o.s.)
2871 170 (powder)
3141 157 (inorganic liquid compounds, n.o.s.) |
Exposure
Limits |
NIOSH REL*: TWA 0.5 mg/m3 [*Note: The
REL also applies to other antimony compounds (as Sb).] |
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OSHA PEL*: TWA 0.5 mg/m3 [*Note: The
PEL also applies to other antimony compounds (as Sb).] |
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IDLH 50 mg/m3 (as Sb) |
Conversion |
Physical Description
Silver-white, lustrous, hard, brittle solid; scale-like crystals; or a
dark-gray, lustrous powder. |
MW: 121.8
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BP: 2975°F
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MLT: 1166°F
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Sol: Insoluble
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: 6.69
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Fl.P: NA
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UEL: NA
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LEL: NA
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Noncombustible Solid in bulk form, but a
moderate explosion hazard in the form of dust when exposed to flame.
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Incompatibilities & Reactivities
Strong oxidizers, acids, halogenated acids [Note: Stibine is formed when
antimony is exposed to nascent (freshly formed) hydrogen.] |
Personal Protection & Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
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First Aid
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations NIOSH/OSHA
Up to 5 mg/m3: (APF = 10) Any dust and mist
respirator except single-use and quarter-mask respirators^/(APF = 10) Any
supplied-air respirator
Up to 12.5 mg/m3: (APF = 25) Any supplied-air
respirator operated in a continuous-flow mode/(APF = 25) Any powered, air-purifying
respirator with a dust and mist filter^
Up to 25 mg/m3: (APF = 50) Any air-purifying,
full-facepiece respirator with a high-efficiency particulate filter/(APF =
50) Any supplied-air respirator that has a tight-fitting facepiece and is
operated in a continuous-flow mode/(APF = 50) Any powered, air-purifying
respirator with a tight-fitting facepiece and a high-efficiency particulate
filter/(APF = 50) Any self-contained breathing apparatus with a full
facepiece/(APF = 50) Any supplied-air respirator with a full facepiece
Up to 50 mg/m3: (APF = 1000) Any supplied-air
respirator operated in a pressure-demand or other positive-pressure mode
Emergency or planned entry into unknown concentrations or IDLH
conditions: (APF = 10,000) Any self-contained breathing apparatus
that has a full facepiece and is operated in a pressure-demand or other
positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a
full facepiece and is operated in a pressure-demand or other positive-pressure
mode in combination with an auxiliary self-contained positive-pressure
breathing apparatus
Escape: (APF = 50) Any air-purifying, full-facepiece
respirator with a high-efficiency particulate filter/Any appropriate escape-type,
self-contained breathing apparatus |
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, nose, throat, mouth; cough; dizziness; headache;
nausea, vomiting, diarrhea; stomach cramps; insomnia; anorexia; unable to
smell properly |
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Target Organs
Eyes, skin, respiratory system, cardiovascular system
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