DIMETHYLPHTHALATE†

Chemical Identification
Chemical Identification
CAS # 131-11-3
Formula

C₁₀H₁₀O₄

Synonyms

dimethyl ester of 1,2-benzenedicarboxylic acid; DMP; phthalic acid; dimethyl ester

Physical Properties
Physical Properties
Physical description Colorless, oily liquid with a slight, aromatic odor.
Boiling point 543°F Molecular weight 194.2
Freezing point/melting point 32°F Vapor pressure 0.01 mmHg
Flash point 295°F Vapor density 6.69
Specific gravity 1.19 Ionization potential 9.64 eV
Lower explosive limit (LEL) 0.9% at 358°F Upper explosive limit (UEL) 8%
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.) 0950
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

5 mg/m³

REL-TWA

5 mg/m³

TLV-TWA

5 mg/m³ [2005]

PEL-TWA

5 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

N

Skin notation

N

Notes:

See 29 CFR 1910.1000 Table Z-1.

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

2000 mg/m³

Carcinogenic classifications: EPA-D 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 - Dimethyl phthalate

NIOSH: Pocket Guide to Chemical Hazards - Dimethylphthalate

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Dimethyl phthalate. See annual publication for most recent information.
  • EPA Air Toxics Website: Dimethyl Phthalate. U.S. Environmental Protection Agency Technology Transfer Network.
  • Albro, P.W. and Moore, B.: Identification of the metabolites of simple phthalate diesters in rat urine. J. Chromatogr. 94(0): 209-218, 1974.
  • Field, E.A., et al.: Developmental toxicity evaluation of diethyl and dimethyl phthalate in rats. Teratology 48(1): 33-44, 1993.
  • Pohanish, R.P. (editor): Dimethyl Phthalate. In, Sittig's Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 1. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 936-939.
  • Scott, R.C., Dugard, P.H., Ramsey, J.D. and Rhodes, C.: In vitro absorption of some o-phthalate diesters through human and rat skin. Environ. Health Perspect. 74: 223-227, 1987.

Last Updated Date : 12/28/2020