FURFURAL†

Chemical Identification
CAS # 98-01-1
Formula

C₅H₄O₂

Synonyms

fural; 2-furancarboxaldehyde; furfuraldehyde; 2-furfuraldehyde

Physical Properties
Physical description Colorless to amber liquid with an almond-like odor.
Boiling point 323°F Molecular weight 96.1
Freezing point/melting point -34°F Vapor pressure 2 mmHg
Flash point 140°F Vapor density
Specific gravity 1.16 Ionization potential 9.21 eV
Lower explosive limit (LEL) 2.1% Upper explosive limit (UEL) 19.3%
NFPA health rating 3 NFPA fire rating 2
NFPA reactivity rating 1 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 1325
Sampling group
Sampler/Sampling media Anasorb 747 (140/70 mg) [SKC 226-81A]
Sampling time*

180 min

Sampling volume (TWA)*

180 L

Sampling flow rate (TWA)*

1 L/min

Sampling volume (STEL/Peak/C)*

15 L

Sampling flow rate (STEL/Peak/C)*

1 L/min

Analytical method instruments GC-FID
Method reference OSHA 72 (fully validated)
Notes
 

 

Special requirements
 

 

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Wipe Method
Sampler/Sampling media
 

 

Bulk Method
Bulk Method
 

 

On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA
 

5 ppm (20 mg/m³)

REL-TWA
 

 

TLV-TWA
 

0.2 ppm [2016]

PEL-TWA
 

2 ppm (8 mg/m³)

PEL-STEL
 

 

REL-STEL
 

 

TLV-STEL
 

 

PEL-STEL
 

 

PEL-C
 

 

REL-C
 

 

TLV-C
 

 

PEL-C
 

 

Skin notation
 

Y

Skin notation
 

N

Skin notation
 

Y

Skin notation
 

Y

Notes:
 

See 29 CFR 1910.1000 Table Z-1.

Notes:
 

See Appendix D - Substances with No Established RELs.

Notes:
 

BEI®

Notes:
 

 

Health factors:  See NIH-NLM PubChem. IDLH
 

100 ppm

Carcinogenic classifications: IARC-3, TLV-A3 Notes:
 

 

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
 

2 ppm/10 ppm/50 ppm

Last Updated Date : 12/29/2020