September 2010
NIOSH Publication Number 2010-168c

Indium

Synonyms & Trade Names
Indium metal
CAS No.
7440-74-6
RTECS No.
NL1050000
DOT ID & Guide
Formula
In
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
*: TWA 0.1 mg/m3 [*Note: The REL also applies to other indium compounds (as In).]
OSHA PEL
†: none
Measurement Methods

NIOSH ID121
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)
IP:
NA
Sp.Gr:
7.31
Fl.P:
NA
UEL:
NA
LEL:
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.]
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
Personal Protection/Sanitation
(See protection codes)
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
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 1293