NIOSH Pocket Guide to Chemical Hazards


CAS 7440-74-6


RTECS NL1050000
Synonyms & Trade Names
Indium metal
DOT ID & Guide


NIOSH REL*: TWA 0.1 mg/m3 [*Note: The REL also applies to other indium compounds (as In).]
OSHA PEL†: none
IDLH N.D. See: IDLH INDEX Conversion
Physical Description
Ductile, shiny, silver-white metal that is softer than lead.
MW: 114.8
BP: 3767°F
MLT: 314°F
Sol: Insoluble
VP: 0 mmHg (approx)

Sp.Gr: 7.31
Fl.P: NA

Noncombustible Solid in bulk form, but may ignite in powdered or dust form.
Incompatibilities & Reactivities
(Dinitrogen tetraoxide + acetonitrile), mercury(II) bromide (at 662°F), sulfur (mixtures ignite when heated) [Note: oxidizes readily at higher temperatures.]
Measurement Methods
NIOSH 7303, P&CAM173 (II-5); OSHA ID121
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
Skin: No recommendation
Eyes: No recommendation
Wash skin: No recommendation
Remove: No recommendation
Change: No recommendation

First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash
Breathing: Respiratory support
Swallow: Medical attention immediately
Important additional information about respirator selection
Respirator Recommendations Not available.
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, respiratory system; possible liver, kidney, heart, blood effects; pulmonary edema
Target Organs Eyes, skin, respiratory system, liver, kidneys, heart, blood
See also: INTRODUCTION   See ICSC CARD: 1293