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Furfural																				Related Pages
Synonyms & Trade Names
			Fural, 2-Furancarboxaldehyde, Furfuraldehyde, 2-Furfuraldehyde
CAS No.
			98-01-1
	RTECS No.
			LT7000000
	DOT ID & Guide
			1199 132P

FormulaC5H4O2
	Conversion
			1 ppm = 3.93 mg/m3
	IDLH
			100 ppmSee: 98011

Exposure Limits
			NIOSH RELSee Appendix D
					OSHA PEL TWA 5 ppm (20 mg/m3) [skin] See Appendix G
	Measurement Methods
			**NIOSH** 2529;**OSHA** 72
					
					See: NMAM or OSHA Methods
										
Physical Description
			Colorless to amber liquid with an almond-like odor.
					[Note: Darkens in light and air.]													
										
Molecular Weight96.1	
	Boiling Point323°F
	Freezing Point-34°F
	Solubility8%
	Vapor Pressure2 mmHg
	Ionization Potential9.21 eV											
Specific Gravity1.16	
	Flash Point140°F
	Upper Explosive Limit19.3%
	Lower Explosive Limit2.1%
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities
			Strong acids, oxidizers, strong alkalis
					[Note: May polymerize on contact with strong acids or strong alkalis.]
Exposure Routes
			inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms
			irritation eyes, skin, upper respiratory system; headache; dermatitis
Target Organs
			Eyes, skin, respiratory 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:**No recommendation
	First Aid
			(See procedures)**Eye:**Irrigate immediately
							**Skin:**Water flush promptly
							**Breathing:**Respiratory support
							**Swallow:**Medical attention immediately
Respirator Recommendations
			**OSHA****Up to 50 ppm**: (APF = 10) Any chemical cartridge respirator with organic vapor cartridge(s)*(APF = 10) Any supplied-air respirator***Up to 100 ppm**: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode*(APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)*(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister(APF = 50) Any self-contained breathing apparatus with a full facepiece(APF = 50) Any supplied-air respirator with a full facepiece**Emergency or planned entry into unknown concentrations or IDLH conditions:** (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus**Escape:** (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canisterAny appropriate escape-type, self-contained breathing apparatus
				Important additional information about respirator selection
See also
			INTRODUCTION
					  ICSC CARD: 0276
					  MEDICAL TESTS: 0252

			
							

			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
RTECS Numbers
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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