BENZOPHENONE

Chemical Identification
CAS # 119-61-9
Formula

C₁₃H₁₀O

Synonyms

Diphenylmethanone; diphenyl ketone; benzoylbenzene; alpha-oxodiphenylmethane; alpha-oxoditane; oxodiphenylmethane; oxoditane

Physical Properties
Physical description White solid with flowery odor.
Boiling point 583°F Molecular weight 182.22
Freezing point/melting point 119°F Vapor pressure
Flash point Vapor density
Specific gravity 1.085 Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) B505
Sampling group
Sampler/Sampling media Chromosorb® 106 (100/50 mg) [SKC 226-110]
Sampling time*
Sampling volume (TWA)*

48 L

Sampling flow rate (TWA)*

0.2 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FID
Method reference OSHA PV2130 (partially 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 REL-TWA TLV-TWA PEL-TWA
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

NA

Skin notation

NA

Skin notation

NA

Skin notation

NA

Notes:

Not established

Notes:

Not established

Notes:

Not established

Notes:

Not established

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Last Updated Date : 12/17/2020