PROPYLENE DICHLORIDE (1,2-DICHLOROPROPANE)†

Chemical Identification

CAS # 78-87-5; 26638-19-7(mixed isomers)
Formula

C₃H₆Cl₂

Synonyms

dichloro-1,2-propane; 1,2-dichloropropane

Physical Properties

Physical description Colorless liquid with a chloroform-like odor.
Boiling point 206°F Molecular weight 112.99
Freezing point/melting point 149°F Vapor pressure 40 mmHg
Flash point 60°F Vapor density 3.9
Specific gravity 1.16 Ionization potential 10.87 eV
Lower explosive limit (LEL) 3.4% Upper explosive limit (UEL) 14.5%
NFPA health rating 2 NFPA fire rating 3
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.) 2190
Sampling group
Sampler/Sampling media Anasorb 747 (140/70 mg) [SKC 226-81A]
Sampling time*
Sampling volume (TWA)*

0.1-3.5 L

Sampling flow rate (TWA)*

0.01-0.2 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FID
Method reference NIOSH 1013 (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 Infrared spectrophotometer Organic vapor analyzer
Model/Type Miran 1A & 1B
Sampling information
(see manufacturer instructions)
0.8 ppm@9.9 µm follow mfr 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

75 ppm (350 mg/m³)

REL-TWA TLV-TWA

10 ppm [2005]

PEL-TWA

75 ppm (350 mg/m³)

PEL-STEL REL-STEL TLV-STEL PEL-STEL

110 ppm (510 mg/m³)

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:

CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION (LOQ 0.03 ppm). See Appendix A, NIOSH Potential Occupational Carcinogens.

Notes:

dermal sensitization (DSEN)

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

400 ppm

Carcinogenic classifications: IARC-3, NIOSH-Ca,TLV-A4 Notes:

Ca

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

Last Updated Date : 01/11/2021