Calcium cyanamide
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CAS
156-62-7
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CaCN2
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RTECS
GS6000000
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Synonyms & Trade Names
Calcium carbimide, Cyanamide, Lime nitrogen, Nitrogen lime [Note: Cyanamide is also a synonym for Hydrogen cyanamide, NH2CN.]
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DOT ID & Guide
1403 / 138 (with >0.1% calcium carbide)
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Exposure
Limits
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NIOSH REL: TWA 0.5 mg/m3
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OSHA PEL†: none
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IDLH
N.D.
See: IDLH INDEX
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Conversion
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Physical Description
Colorless, gray, or black crystals or powder. [fertilizer] [Note: Commercial grades may contain calcium carbide.]
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MW: 80.1
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BP: Sublimes
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MLT: 2444°F
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Sol: Insoluble
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: 2.29
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Fl.P: NA
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UEL: NA
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LEL: NA
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Noncombustible Solid, but a fire risk if it contains calcium carbide.
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Incompatibilities & Reactivities
Water [Note: May polymerize in water or alkaline solutions to dicyanamide. Decomposes in water to form acetylene & ammonia.]
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Measurement Methods
NIOSH 0500
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: Daily
Provide: Eyewash, Quick drench
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
Not available.
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, respiratory system; headache, dizziness, rapid breathing, low blood pressure, nausea, vomiting; skin burns, sensitization; cough; Antabuse-like effects
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Target Organs
Eyes, skin, respiratory system, vasomotor system
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