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Adiponitrile

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Synonyms & Trade Names
1,4-Dicyanobutane, Hexanedinitrile, Tetramethylene cyanide
CAS No.
111-69-3
RTECS No.
AV2625000
DOT ID & Guide
2205 153
Formula
NC(CH₂)₄CN
Conversion
1 ppm = 4.43 mg/m3
IDLH
N.D.
See: IDLH INDEX
Exposure Limits
NIOSH REL
TWA 4 ppm (18 mg/m3)
OSHA PEL
none
Measurement Methods
NIOSH Nitriles Crit. Doc.
See: NMAM or OSHA Methods
Physical Description
Water-white, practically odorless, oily liquid. [Note: A solid below 34°F. Forms cyanide in the body.]
Molecular Weight
108.2
Boiling Point
563°F
Freezing Point
34°F
Solubility
4.5%
Vapor Pressure
0.002 mmHg
Ionization Potential
?
Specific Gravity
0.97
Flash Point
(oc) 199°F
Upper Explosive Limit
5.0%
Lower Explosive Limit
1.7%
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
Oxidizers (e.g., perchlorates, nitrates), strong acids (e.g., sulfuric acid) [Note: Decomposes above 194°F, forming hydrogen cyanide.]
Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
irritation eyes, skin, respiratory system; headache, dizziness, lassitude (weakness, exhaustion), confusion, convulsions; blurred vision; dyspnea (breathing difficulty); abdominal pain, nausea, vomiting
Target Organs
Eyes, skin, respiratory system, central nervous system, cardiovascular 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

NIOSH

Up to 40 ppm:
(APF = 10) Any supplied-air respirator

Up to 100 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode

Up to 200 ppm:
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece

Up to 250 ppm:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is 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 (gas mask) with a chin-style, front- or back-mounted organic vapor canister
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0211
Page last reviewed: October 30, 2019
Content source: National Institute for Occupational Safety and Health