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Calcium cyanamide																				Related Pages
Synonyms & Trade Names
			Calcium carbimide, Cyanamide [Calcium 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 RELTWA 0.5 mg/m3OSHA PEL none See Appendix G
	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.]													
										
Molecular Weight80.1	
	Boiling PointSublimes
	Melting Point2444°F
	SolubilityInsoluble
	Vapor Pressure0 mmHg (approx)
	Ionization PotentialNA											
Specific Gravity2.29	
	Flash PointNA
	Upper Explosive LimitNA
	Lower Explosive LimitNA
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
					  ICSC CARD: 1639

			
							

			Page last reviewed:  October 30, 2019						Content
							source: 	National Institute for Occupational Safety and Health NIOSH Pocket Guide to Chemical Hazards
Introduction
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Appendices
A – NIOSH Potential Occupational Carcinogens
B – Thirteen OSHA-Regulated Carcinogens
C – Supplementary Exposure Limits
D – Substances with No Established RELs
E – OSHA Respirator Requirements for Selected Chemicals
F – Miscellaneous Notes
G – 1989 Air Contaminants Update Project: Exposure Limits NOT in Effect
Type C & CE – Definitions for Type C and Type CE Respirators
Personal Protection and Sanitation Codes
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