1,1-DIMETHYLPROPYLACETATE

Chemical Identification

CAS # 625-16-1
Formula
 

C₇H₁₄O₂

Synonyms
 

tert-amyl acetate; pentylacetate

Physical Properties

Physical description Colorless to yellow watery liquid with a weak odor of bananas.
Boiling point 256.5°F Molecular weight 130.18
Freezing point/melting point >-148°F Vapor pressure
Flash point 79°F Vapor density
Specific gravity 0.874 at 66.2°F Ionization potential
Lower explosive limit (LEL) 1% Upper explosive limit (UEL) 7.5%
NFPA health rating 1 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.)
Sampling group
Sampler/Sampling media
Sampling time*
 

 

Sampling volume (TWA)*
 

 

Sampling flow rate (TWA)*
 

 

Sampling volume (STEL/Peak/C)*
 

 

Sampling flow rate (STEL/Peak/C)*
 

 

Analytical method instruments
Method reference
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
Model/Type
Sampling information
(see manufacturer 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
 

 

REL-TWA
 

 

TLV-TWA
 

50 ppm [1997]

PEL-TWA
 

50 ppm (266 mg/m³)

PEL-STEL
 

 

REL-STEL
 

 

TLV-STEL
 

100 ppm [1997]

PEL-STEL
 

100 ppm 532 (mg/m³)

PEL-C
 

 

REL-C
 

 

TLV-C
 

 

PEL-C
 

 

Skin notation
 

NA

Skin notation
 

NA

Skin notation
 

N

Skin notation
 

N

Notes:
 

Not established

Notes:
 

Not established

Notes:
 

 

Notes:
 

 

Health factors:  See NIH-NLM PubChem. IDLH
Carcinogenic classifications: Not listed Notes:
 

 

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

 

Additional Resources and Literature References

Last Updated Date : 12/14/2020