Gum rosin pine
Offer type: salePublished: 01.04.2015
Gum rosin
pine - hard, brittle,
glassy transparent resin light yellow (rarely dark red) color,
a part of the resinous substance of coniferous trees remaining after the distillation of
tar turpentine.
Rosin
very soluble in ether, alcohol, acetone, turpentine and benzene, worse - in
gasoline, kerosene and furfural; not soluble in water. The softening temperature of
rosin 52-70°C; the boiling point of 250°; heat capacity 0, 54 kcal/kg;
the thermal conductivity of 0, 11 kcal/m . hour . deg; latent heat of fusion 15, 8
kcal/kg, the coefficient of expansion of the molten rosin 0, 055; calorific value
9074-9171 kcal/kg.
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