o-Chlorobenzylidene malononitrile
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CAS
2698-41-1
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ClC6H4CH=C(CN)2
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RTECS
OO3675000
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Synonyms & Trade Names
2-Chlorobenzalmalonitrile, CS, OCBM
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DOT ID & Guide
2810 / 153
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Exposure
Limits
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NIOSH REL: C 0.05 ppm (0.4 mg/m3) [skin]
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OSHA PEL†: TWA 0.05 ppm (0.4 mg/m3)
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IDLH
2 mg/m3
See: 2698411
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Conversion
1 ppm = 7.71 mg/m3
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Physical Description
White crystalline solid with a pepper-like odor.
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MW: 188.6
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BP: 590-599°F
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MLT: 203-205°F
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Sol: Insoluble
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VP: 0.00003 mmHg
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IP: ?
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Sp.Gr: ?
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Fl.P: ?
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UEL: ?
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LEL: ?
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MEC: 25 g/m3
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Combustible Solid
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Incompatibilities & Reactivities
Strong oxidizers
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Measurement Methods
NIOSH P&CAM304 (II-5)
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated/Daily
Remove: When wet or contaminated
Change: Daily
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH/OSHA
Up to 2 mg/m3:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode£
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern and having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters.
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
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 canister providing protection against the compound of concern and having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection
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Exposure Routes
inhalation, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Pain, burn eyes, lacrimation (discharge of tears), conjunctivitis; erythema (skin redness) eyelids, blepharospasm; irritation throat, cough, chest tightness; headache; erythema (skin redness), skin vesiculation
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Target Organs
Eyes, skin, respiratory system
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