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m-Phthalodinitrile																				Related Pages
Synonyms & Trade Names
			1,3-Benzenedicarbonitrile, 1,3-Dicyanobenzene, m-Dicyanobenzene, Isophthalodinitrile, m-PDN
CAS No.
			626-17-5
	RTECS No.
			CZ1900000
	DOT ID & Guide

FormulaC6H4(CN)2
	Conversion
	IDLH
			N.D.See: IDLH INDEX

Exposure Limits
			NIOSH RELTWA 5 mg/m3OSHA PEL none See Appendix G
	Measurement Methods
			None available 
					
					See: NMAM or OSHA Methods
										
Physical Description
			Needle-like, colorless to white, crystalline, flaky solid with an almond-like odor.													
										
Molecular Weight128.1	
	Boiling PointSublimes
	Melting Point324°F (Sublimes)
	SolubilitySlight
	Vapor Pressure0.01 mmHg
	Ionization Potential?											
Specific Gravity4.42	
	Flash Point?
	Upper Explosive Limit?
	Lower Explosive Limit?
Combustible Solid and a severe explosion hazard.
Incompatibilities & Reactivities
			Strong oxidizers (e.g., chlorine, bromine, fluorine)
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			headache, nausea, confusion; In Animals: irritation eyes, skin
Target Organs
			Eyes, skin, central nervous system
										
Personal Protection/Sanitation
			(See protection codes) **Skin:**Prevent skin contact
							**Eyes:**Prevent eye contact
							**Wash skin:**Daily
							**Remove:**When wet or contaminated
							**Change:**Daily
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Soap wash immediately
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			Not available.
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 1583

			
							

			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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Chemical Names, Synonyms and Trade Names
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CAS Numbers
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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
First Aid Procedures Follow NIOSH Facebook
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