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| Malononitrile | CAS 109-77-3 | ||
| NCCH2CN | RTECS OO3150000 | ||
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Synonyms & Trade Names Cyanoacetonitrile, Dicyanomethane, Malonic dinitrile |
DOT ID & Guide 2647 153 |
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Exposure Limits |
NIOSH REL: TWA 3 ppm (8 mg/m3) | ||
| OSHA PEL: none | |||
| IDLH N.D. | Conversion 1 ppm = 2.70 mg/m3 | ||
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Physical Description White powder or colorless crystals. [Note: Melts above 90°F. Forms cyanide in the body.] |
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MW: 66.1 |
BP: 426°F |
MLT: 90°F |
Sol: 13% |
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VP: ? |
IP: 12.88 eV |
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Sp.Gr: 1.19 |
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Fl.P(oc): 266°F |
UEL: ? |
LEL: ? |
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| Combustible Solid | |||
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Incompatibilities & Reactivities Strong bases [Note: May polymerize violently on prolonged heating at 265°F, or in contact with strong bases at lower temperatures.] |
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Measurement Methods NIOSH Nitriles Crit. Doc. |
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Personal Protection & Sanitation 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 |
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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 |
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| 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 | |
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Target Organs
Eyes, skin, respiratory system, central nervous system, cardiovascular system |
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| See also: INTRODUCTION |