ISOPROPYL ETHER†

Chemical Identification
Chemical Identification
CAS # 108-20-3
Formula

C₆H₁₄O

Synonyms

diisopropyl ether; diisopropyl oxide; 2-isopropoxy propane; isopropylether

Physical Properties
Physical Properties
Physical description Colorless liquid with a sharp, sweet, ether-like odor.
Boiling point 154°F Molecular weight 102.2
Freezing point/melting point -123°F Vapor pressure 119 mmHg
Flash point -18°F Vapor density
Specific gravity 0.73 Ionization potential 9.20 eV
Lower explosive limit (LEL) 1.4% Upper explosive limit (UEL) 7.9%
NFPA health rating 2 NFPA fire rating 3
NFPA reactivity rating 1 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.) 1565
Sampling group
Sampler/Sampling media CSC tube (100/50 mg) [SKC 226-01]
Sampling time*
Sampling volume (TWA)*

01-3 L

Sampling flow rate (TWA)*

0.01-0.05 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-FID
Method reference NIOSH 1618 (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 Infrared spectrophotometer
Model/Type Miran 1A & 1B
Sampling information
(see manufacturer instructions)
0.2 ppm@9 µm
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

500 ppm (2100 mg/m³)

REL-TWA

500 ppm (2100 mg/m³)

TLV-TWA

250 ppm [1979]

PEL-TWA

250 ppm (1050 mg/m³)

PEL-STEL REL-STEL TLV-STEL

310 ppm [1979]

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

1400 ppm

Carcinogenic classifications: Not listed Notes:

10% of LEL

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Diisopropyl ether

NIOSH: Pocket Guide to Chemical Hazards - Isopropyl ether

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Isopropyl ether. See annual publication for most recent information.

Last Updated Date : 12/31/2020