Abstract
Coniferyl alcohol was found to be a minor degradation product when guaiacylglycerol-β-guaiacyl ether reacted with 0.2M NaHS at alkalinities between 0.025 and 1,1 M NaOH at 130°C. During similar treatments with 0.2M S 0 as polysulphide, coniferyl alcohol was released in yields varying with NaOH concentration, suggesting different mechanisms for the formation of degradation products by HS and by polysulphide. The formation of polysulphide and thiosulphate was found to be negligible under comparable, kraft-pulping-like conditions, which supports the conclusion that coniferyl alcohol is not formed during HS treatment of guaiacylglycerol-β-guaiacyl ether at temperatures below 130°C.
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