a.1.(Chem.) Pertaining to, or designating, an acid found in galipot, and isomeric with abietic acid.
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The resin is a typical non-modified colophony resin, mainly composed by abietic and pimaric acids (90 wt%), with softening point of 73 [degrees] C.
Composition Value Neutral 10% Double-bonded acids type abielic 53% Dihydro-acids (types abietic and pimaric) 13% Tetrahydro-acids (containing pimaric type acids) 16% Dehydroabietic acids 2% Bicarbonate-soluble (oxidized acids) 6% Property Value Softening point 73 [degree] C Color (Warner) 8 Acid equivalent (g NaOH) 186 TABLE 2.
In these residues, the identification of abietic acid, pimaric acid and related degradation products, including dehydroabietic acid, indicates that Pinaceae resin was associated with the mortarium, and further, the presence of the methyl ester of dehydroabietic acid is indicative that the resin was heated (e.
Rosin is mainly composed of five resin acids: abietic acid, neoabietic acid, palustric acid, pimaric acid, and isopimaric acid (Fig.
And the rosin resins are mainly composed of a mixture of C20 such as tricyclic fused-ring namely pimaric and abietic acids.
40, 41, 43-48); including structures based on pimaric, abietic and agathic acids.