Propylene glycol n-butyl ether Chemical Properties

Melting point:

-100℃

Boiling point:

170.1℃

Density 

0.8843

refractive index 

1.4174

Flash point:

68℃

pka

14.89±0.10(Predicted)

EPA Substance Registry System

3-Butoxy-1-propanol (10215-33-5)

Safety Information

RIDADR 

3271

HazardClass 

3.2

PackingGroup 

III

Propylene glycol n-butyl ether Usage And Synthesis

Industrial uses

The longer C4 alkyl carbon chain in propylene glycol n-butyl ether (PnB) affords more organic solvency as compared to the shorter methyl side chain group found in dipropylene glycol methyl ether (DPM). The PnB solvent is a better choice for a coalescent solvent than the DPM since the DPM solvent is completely water soluble. Complete water solubility limits the all important organic solubility necessary for good latex film formation.

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