Blown oil
From Infogalactic: the planetary knowledge core
A blown oil is a drying oil which has been modified through an oxidative process.
Description
Oils are "blown" through partial oxidation of the oil at elevated temperatures. A typical blowing process involves heating the oil to 70 to 120 °C (158 to 248 °F) and passing air through the liquid.[1] The modification causes the formation of C-O-C and C-C cross links, and hydroxyl and carboxyl functional groups.[1]
Blown oils are chemically different from oils modified only by heating,[1] which are known as stand oils.[2]
Some common types of oils that can be blown include linseed oil, rapeseed oil, castor oil and soybean oil.
References
<templatestyles src="Asbox/styles.css"></templatestyles>
 |
This material-related article is a stub. You can help Wikipedia by expanding it. |
