DI-N-OCTYL PHTHALATE

Chemical Identification
Chemical Identification
CAS # 117-84-0
Formula

C₂₄H₃₈O₄

Synonyms

di-n-octyl ester benzenedicarboxylic acid; DNOP; n-dioctyl phthalate

Physical Properties
Physical Properties
Physical description A clear liquid with a mild odor.
Boiling point 428°F Molecular weight 390.62
Freezing point/melting point -13°F Vapor pressure <0.2 mmHg at 302°F
Flash point 219°F Vapor density
Specific gravity 0.98 Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 1 NFPA fire rating 1
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.) 1000
Sampling group
Sampler/Sampling media OSHA versatile sampler (OVS-Tenax®) - 13 mm Tenax® tube (140/70 mg) with GFF enclosed [SKC 226-56]
Sampling time*

240 min

Sampling volume (TWA)*

240 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 104 (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 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:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Di-n-octyl phthalate

NIOSH: Pocket Guide to Chemical Hazards - Di-n-octyl phthalate

Literature References

Last Updated Date : 12/28/2020