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Furfural

Synonyms & Trade Names
Fural, 2-Furancarboxaldehyde, Furfuraldehyde, 2-Furfuraldehyde
CAS No.
98-01-1
RTECS No.
LT7000000
DOT ID & Guide
1199 132P
Formula
C₅H₄O₂
Conversion
1 ppm = 3.93 mg/m3
IDLH
100 ppm
See: 98011
Exposure Limits
NIOSH REL
See 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 Weight
96.1
Boiling Point
323°F
Freezing Point
-34°F
Solubility
8%
Vapor Pressure
2 mmHg
Ionization Potential
9.21 eV
Specific Gravity
1.16
Flash Point
140°F
Upper Exposive Limit
19.3%
Lower Explosive Limit
2.1%
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 canister
Any appropriate escape-type, self-contained breathing apparatus

Important additional information about respirator selection

See also
INTRODUCTION   ICSC CARD: 0276   MEDICAL TESTS: 0252

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