Acetone Extraction of "Phenolic Materials"
Abstract
The phenolic material studied is a thermo-setting solid produced by the condensation of phenol and formaldehyde. In the final product there remains some unreacted phenol and formaldehyde, some partially condensed, the dye that is often added to give color, and asbestos and a fibre to give the finished product strength. Of these products the unreacted base materials are readily soluble in acetone and the partially condensed product and the dye to a lesser extent. The ingredients soluble in acetone are extracted and the acetone is evaporated and the residue is weighed, giving a measure of the soluble constituents. This residue is believed to be a measure of the cure of the finished product. An incompletely cured product should have a larger per cent of acetone soluble components and one completely cured or over-cured should have a low percent of soluble material.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 04, 1939
- Accession Number
- AD1158907
Entities
People
- David Cook
- Frederick Magnusson
Organizations
- United States Naval Research Laboratory