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m-Phthalodinitrile

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Synonyms & Trade Names
1,3-Benzenedicarbonitrile, 1,3-Dicyanobenzene, m-Dicyanobenzene, Isophthalodinitrile, m-PDN
CAS No.
626-17-5
RTECS No.
CZ1900000
DOT ID & Guide
Formula
C₆H₄(CN)₂
Conversion
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 5 mg/m3
OSHA PEL
none See Appendix G
Measurement Methods
None available
See: NMAM or OSHA Methods
Physical Description
Needle-like, colorless to white, crystalline, flaky solid with an almond-like odor.
Molecular Weight
128.1
Boiling Point
Sublimes
Melting Point
324°F (Sublimes)
Solubility
Slight
Vapor Pressure
0.01 mmHg
Ionization Potential
?
Specific Gravity
4.42
Flash Point
?
Upper Explosive Limit
?
Lower Explosive Limit
?
Combustible Solid and a severe explosion hazard.
Incompatibilities & Reactivities
Strong oxidizers (e.g., chlorine, bromine, fluorine)
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
headache, nausea, confusion; In Animals: irritation eyes, skin
Target Organs
Eyes, skin, central nervous system
Personal Protection/Sanitation
(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
Wash skin:Daily
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   ICSC CARD: 1583
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health