September 2010
NIOSH Publication Number 2010-168c

Hydrogenated terphenyls

Synonyms & Trade Names
Hydrogenated diphenylbenzenes, Hydrogenated phenylbiphenyls, Hydrogenated triphenyls [Note: Complex mixture of terphenyl isomers that are partially hydrogenated.]
CAS No.
61788-32-7
RTECS No.
WZ6535000
DOT ID & Guide
Formula
(C6Hn)3
Conversion
1 ppm = 12.19 mg/m3 (40% hydrogenated)
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
: TWA 0.5 ppm (5 mg/m3)
OSHA PEL
†: none
Measurement Methods

None available
Physical Description
Clear, oily, pale-yellow liquids with a faint odor. [plasticizer/heat-transfer media]
MW:
298 (40% hydrogenated)
BP:
644°F (40% hydrogenated)
FRZ:
?
Sol:
Insoluble
VP:
?
IP:
?
Sp.Gr(77°F): 1.003-1.009 (40% hydrogenated)
Fl.P:
315°F (40% hydrogenated)
UEL:
?
LEL:
?
Class IIIB Combustible Liquids
Incompatibilities & Reactivities
None reported [Note: When heated, irritating vapors will be released.]
Exposure Routes
inhalation, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; liver, kidney, hematopoietic damage
Target Organs
Eyes, skin, respiratory system, liver, kidneys, hematopoietic system
Personal Protection/Sanitation
(See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
First Aid
(See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations

Not available.

Important additional information about respirator selection

See also: INTRODUCTION   See ICSC CARD: 1249