DIISOPROPYLAMINE†

Chemical Identification

CAS # 108-18-9
Formula

C₆H₁₅N

Synonyms

DIPA; N-(1-methylethyl)-2-propanamine

Physical Properties

Physical description Colorless liquid with an ammonia- or fish-like odor.
Boiling point 183°F Molecular weight 101.2
Freezing point/melting point -78°F Vapor pressure 70 mmHg
Flash point 20°F Vapor density 3.5
Specific gravity 0.72 Ionization potential 7.73 eV
Lower explosive limit (LEL) 1.1% Upper explosive limit (UEL) 7.1%
NFPA health rating 3 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.) 0925
Sampling group
Sampler/Sampling media Midget fritted glass bubbler (MFGB) containing 10 mL Sulfuric Acid (0.1 M) [Infrequently Requested Method - OSHA staff please contact SLTC before sampling 801-233-5100]
Sampling time*
Sampling volume (TWA)*

120 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 NIOSH S141 (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
Model/Type Miran 1A & 1B
Sampling information
(see manufacturer instructions)
0.4 ppm@8.5 µm

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 ppm (20 mg/m³)

REL-TWA

5 ppm (20 mg/m³)

TLV-TWA

5 ppm [1979]

PEL-TWA

5 ppm (20 mg/m³)

PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

Y

Skin notation

Y

Skin notation

Y

Skin notation

Y

Notes:

See 29 CFR 1910.1000 Table Z-1.

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

200 ppm

Carcinogenic classifications: Not listed Notes:
AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

Last Updated Date : 01/22/2024