Lapse in Appropriations
For workplace safety and health, please call 800-321-6742; for mine safety and health, please call 800-746-1553; for Job Corps, please call 800-733-5627 and for Wage and Hour, please call 866-487-9243 (866-4-US-WAGE). This website is currently not being updated due to the suspension of Federal government services. The last update to the site was 10/1/2025. Updates to the site will start again when the Federal government resumes operations.
DIETHYL PHTHALATE
CAS # | 84-66-2 |
---|---|
Formula |
C₁₂H₁₄O₄ |
Synonyms |
DEP; diethyl ester of phthalic acid; ethyl phthalate |
Physical description | Colorless to water-white, oily liquid with a very slight, aromatic odor. | ||
---|---|---|---|
Boiling point | 563°F | Molecular weight | 222.3 |
Freezing point/melting point | -41°F | Vapor pressure | 0.002 mmHg at 77°F |
Flash point | 284°F | Vapor density | 7.66 |
Specific gravity | 1.12 | Ionization potential | |
Lower explosive limit (LEL) | 0.7% at 367°F | Upper explosive limit (UEL) | 0.75 at 368°F |
NFPA health rating | 1 | NFPA fire rating | 1 |
NFPA reactivity rating | 0 | NFPA special instruction | |
Vapor hazard ratio (VHR) | |||
Historical exceedance percentage | |||
Target organs |
Analyte code (IMIS no.) | 0933 |
---|---|
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* | |
Sampling volume (TWA)* | 240 L |
Sampling flow rate (TWA)* | 1 L/min |
Sampling volume (STEL/Peak/C)* | |
Sampling flow rate (STEL/Peak/C)* | |
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 Sampler/Sampling media | |
---|---|
Bulk Method |
Device | |||||
---|---|---|---|---|---|
Model/Type | |||||
Sampling information (see manufacturer instructions) |
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 |
|||||
---|---|---|---|---|---|---|---|
PEL-TWA | REL-TWA |
5 mg/m³ |
TLV-TWA |
5 mg/m³ [1996] |
PEL-TWA |
5 mg/m³ |
|
PEL-STEL | REL-STEL | TLV-STEL | PEL-STEL | ||||
PEL-C | REL-C | TLV-C | PEL-C | ||||
Skin notation |
NA |
Skin notation |
N |
Skin notation |
N |
Skin notation |
N |
Notes:
Not established |
Notes: | Notes: | Notes: | ||||
Health factors: See NIH-NLM PubChem. | IDLH | ||||||
Carcinogenic classifications: TLV-A4, EPA-D | Notes: | ||||||
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3: |
Additional Resources and Literature References
NOAA: CAMEO Chemicals - Diethyl phthalate NIOSH: Pocket Guide to Chemical Hazards - Diethyl phthalate Literature References
|
Last Updated Date : 01/29/2021