Calcium cyanamide |
Synonyms & Trade Names Calcium carbimide, Cyanamide, Lime nitrogen, Nitrogen lime [Note: Cyanamide is also a synonym for Hydrogen cyanamide, NH2CN.] |
CAS No. 156-62-7 |
RTECS No. GS6000000 |
DOT ID & Guide 1403 138 (with >0.1% calcium carbide) |
FormulaCaCN2 |
Conversion |
IDLH N.D.
See: IDLH INDEX |
Exposure Limits NIOSH REL: TWA 0.5 mg/m3
OSHA PEL†: none |
Measurement Methods
NIOSH 0500
See: NMAM or OSHA Methods |
Physical Description Colorless, gray, or black crystals or powder. [fertilizer] [Note: Commercial grades may contain calcium carbide.] |
MW: 80.1 |
BP: Sublimes |
MLT: 2444°F |
Sol: Insoluble |
VP: 0 mmHg (approx) |
IP: NA |
Sp.Gr: 2.29 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Solid, but a fire risk if it contains calcium carbide. |
Incompatibilities & Reactivities Water [Note: May polymerize in water or alkaline solutions to dicyanamide. Decomposes in water to form acetylene & ammonia.] |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin, respiratory system; headache, dizziness, rapid breath, low blood pressure, nausea, vomiting; skin burns, sensitization; cough; Antabuse-like effects |
Target Organs Eyes, skin, respiratory system, vasomotor 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: Soap flush immediately
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations Not available.
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 1639
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