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Table 1 Properties of crude glycerol

From: Characterization of polyurethane foams prepared from liquefied sawdust by crude glycerol and polyethylene glycol

Samples Content (wt.%)
Free glycerol 26.6 ± 0.1
FAMEs 29.1 ± 1
FFAs 4 ± 0.1
Glycerides 6 ± 0.1
Water 3.6 + 0.1
Methanol 7.9 ± 0.1
Soap 18.5 ± 0.1