HEXANE (N-HEXANE)†

Chemical Identification
Chemical Identification
CAS # 110-54-3
Formula

C₆H₁₄

Synonyms
 

hexyl hydride; normal-hexane

Physical Properties
Physical Properties
Physical description Colorless liquid with a gasoline-like odor.
Boiling point 156°F Molecular weight 86.2
Freezing point/melting point -219°F Vapor pressure 124 mmHg
Flash point -7°F Vapor density 2.97
Specific gravity 0.66 Ionization potential 10.18 eV
Lower explosive limit (LEL) 1.1% Upper explosive limit (UEL) 7.5%
NFPA health rating NFPA fire rating 3
NFPA reactivity rating 0 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 1380
Sampling group OVSG-1
Sampler/Sampling media CSC tube (100/50 mg) [SKC 226-01]
Sampling time*
 

98 min

Sampling volume (TWA)*
 

4.9 L

Sampling flow rate (TWA)*
 

0.05 L/min

Sampling volume (STEL/Peak/C)*
 

 

Sampling flow rate (STEL/Peak/C)*
 

 

Analytical method instruments GC-FID
Method reference OSHA 5000 (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
Wipe Method
Sampler/Sampling media
 

 

Bulk Method
Bulk Method
 

 

On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
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
 

500 ppm (1800 mg/m³)

REL-TWA
 

50 ppm (180 mg/m³)

TLV-TWA
 

50 ppm [1996]

PEL-TWA
 

50 ppm (176 mg/m³)

PEL-STEL
 

 

REL-STEL
 

 

TLV-STEL
 

 

PEL-STEL
 

 

PEL-C
 

 

REL-C
 

 

TLV-C
 

 

PEL-C
 

 

Skin notation
 

N

Skin notation
 

N

Skin notation
 

Y

Skin notation
 

Y

Notes:
 

See 29 CFR 1910.1000 Table Z-1.

Notes:
 

 

Notes:
 

BEI®

Notes:
 

 

Health factors:  See NIH-NLM PubChem. IDLH
 

1100 ppm

Carcinogenic classifications: EPA-II Notes:
 

10% of LEL

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

 

Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - N-Hexane

NIOSH: Pocket Guide to Chemical Hazards - n-Hexane

Literature References

 

Last Updated Date : 04/13/2021