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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)
Formula
CaCN2
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
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
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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