Propanol, [2-(2-butoxymethylethoxy)methylethoxy]-
CASRN#
55934-93-5
INCI Name
PPG-3 BUTYL ETHER
Alternate Names
Tripropylene glycol butyl ether
Common Trade Names
DOWANOL TPnB Glycol Ether; TPnB
Molecular Weight
248.4 g/mol
Functional Uses
Solvent, coalescing agent, film-forming agent
Common Impurities
-
Vapor Pressure
0.00308 mm Hg
Octanol-water partition coefficient (log Kow)
1.9
Solubility at 25 C
4.02E+4 mg/l
Boiling Point
274 °C
Particle size range as aerodynamic diameter
- - - μm
Hazard Summary
Assessed by
U.S. EPA Low Priority Chemical report.
Assessment Date
Jul 10, 2020
Assessment Expires
Jul 9, 2025
Executive Summary
Tripropylene glycol n-butyl ether (TPnB) is a P-series glycol ether, meaning that it is made from propylene oxide. Glycol ethers are organic chemical compounds that contain both an alcohol functional group (R-OH) and an ether functional group, which is an oxygen atom connected to two alkyl groups (RO-R’). TPnB is a linear molecule that can be composed of three isomeric propylene oxide groups linked together through ether groups, terminating in a n-butyl carbon chain on one end and an alcohol on the other. Shorter chain ethers and esters, such as TPnB, are liquids capable of dissolving other substances and typically function as solvents. TPnB is a colorless to light yellow hydrophobic liquid with a high boiling point and low volatility. These properties make TPnB a useful solvent, coalescing agent, and filmforming agent in a variety of applications and product sectors.
Hazard Tables
How to read the GHS Hazard Summary Table
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- Explosives: Not classified
- Flammable Gases: Not classified
- Aerosols: Not classified
- Oxidizing Gases: Not classified
- Flammable Liquids: Not classified
- Flammable Solids: Not classified
- Self-reactive substances and mixtures: Not classified
- Pyrophoric Liquids: Not classified
- Pyrophoric Solids: Not classified
- Self-heating Substances and Mixtures: Not classified
- Substances and Mixtures which in contact with water, emit flammable gases: Not classified
- Oxidizing Liquids: Not classified
- Oxidizing Solids: Not classified
- Organic Peroxides: Not classified
- Corrosive to Metals: Not classified
- Desensitized Explosives: Not classified
How to read the C2CC Hazard Summary Table
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