Malononitrile |
Synonyms & Trade Names Cyanoacetonitrile, Dicyanomethane, Malonic dinitrile |
CAS No. 109-77-3 |
RTECS No. OO3150000 |
DOT ID & Guide 2647 153 |
FormulaNCCH2CN |
Conversion 1 ppm = 2.70 mg/m3 |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 3 ppm (8 mg/m3)
OSHA PEL: none |
Measurement Methods
NIOSH Nitriles Crit. Doc.
See: NMAM or OSHA Methods |
Physical Description White powder or colorless crystals. [Note: Melts above 90°F. Forms cyanide in the body.] |
MW: 66.1 |
BP: 426°F |
MLT: 90°F |
Sol: 13% |
VP: ? |
IP: 12.88 eV |
Sp.Gr: 1.19 |
Fl.P(oc): 266°F |
UEL: ? |
LEL: ? |
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| Combustible Solid |
Incompatibilities & Reactivities Strong bases [Note: May polymerize violently on prolonged heating at 265°F, or in contact with strong bases at lower temperatures.] |
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, nose, throat; headache, dizziness, lassitude (weakness, exhaustion), confusion, convulsions; dyspnea (breathing difficulty); abdominal pain, nausea, vomiting |
Target Organs Eyes, skin, respiratory system, central nervous system, cardiovascular system |
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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
Provide: Eyewash, Quick drench |
First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations NIOSH Up to 80 mg/m3:
(APF = 10) Any supplied-air respirator Up to 200 mg/m3:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 400 mg/m3:
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece Up to 667 mg/m3:
(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 See ICSC CARD: 1466
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