Collapse Intensity in Two Eucalypts After Treatment with Hydrochloric Acid and Sodium Chloride Solutions

After treating with various concentrations of hydrochloric acid and sodium chloride solutions, 1 inch cubes of sapwood and heartwood were dried under four conditions. None of the hydrochloric acid solutions caused significant reduction in shrinkage, but actually increased shrinkage severely. With the higher concentrations, there was no significant recovery. Collapse remained pronounced after treatment with 0.1 N hydrochloric acid, in contrast with results previously reported in Israel. Sodium chloride solutions produced a significant reduction in collapse, particularly in concentrations over 0.3 N.

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