CYCLOHEXANONE†

Chemical Identification

CAS # 108-94-1
Formula

C₆H₁₀O

Synonyms

anone; cyclohexyl ketone; pimelic ketone; ketohexamethylene

Physical Properties

Physical description Water-white to pale-yellow liquid with a peppermint- or acetone-like odor.
Boiling point 312°F Molecular weight 98.2
Freezing point/melting point -49°F Vapor pressure 5 mmHg
Flash point 146°F Vapor density 3.4
Specific gravity 0.95 Ionization potential 9.14 eV
Lower explosive limit (LEL) 1.1% Upper explosive limit (UEL) 9.4%
NFPA health rating 1 NFPA fire rating 2
NFPA reactivity rating 0 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA

Analyte code (IMIS no.) 0830
Sampling group
Sampler/Sampling media Chromosorb® 106 (100/50 mg) [SKC 226-110]
Sampling time*

200 min

Sampling volume (TWA)*

10 L

Sampling flow rate (TWA)*

0.05-0.2 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FID
Method reference OSHA 1 (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.

Bulk/Wipe Method

Wipe Sampler/Sampling media
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

50 ppm (200 mg/m³)

REL-TWA

25 ppm (100 mg/m³)

TLV-TWA

20 ppm [1990]

PEL-TWA

25 ppm (100 mg/m³)

PEL-STEL REL-STEL TLV-STEL

50 ppm [1990]

PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

N

Skin notation

Y

Skin notation

Y

Skin notation

Y

Notes:

See 29 CFR 1910.1000 Table Z-1.

Notes: Notes: Notes:
Health factors:  See NIH-NLM PubChem. IDLH

700 ppm

Carcinogenic classifications: IARC-3, TLV-A3 Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

Last Updated Date : 12/22/2020