Southern pine sapwood, volumetric swelling

Tables I, II, and III give volumetric swelling coefficients for southern pine sapwood for various potential reagents, catalysts, and solvents (JO). These coefficients were determined under two sets of conditions. Specimens from oven-dried southern pine sapwood blocks were measured and their volumes were determined. Ten specimens from this set were submerged in a solution and either treated at 120 °C and a pressure of 150 Ib/in. for 1 h, or they were soaked at 25 for 48 h.

Table I. Volumetric Swelling CoefBcients (S) for Southern Pine Sapwood in Various Reagents...

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