232 



FOREST PRODUCTS 



wood used in both the destructive and steam distillation processes based 

 upon an average cord of raw wood material weighing about 4000 lb.: 



UTILIZATION OF PRODUCTS 



The wood turpentine secured from the destructive process of softwood 

 distillation is generally classed in the markets as inferior to gum turpen- 

 tine chiefly because of its peculiar odor. The wood turpentine derived 

 from steam distillation is of more uniform quality and better flavored 

 than the product from destructive distillation. Both are sold at a small 

 discount below the price secured for gum turpentine and are used mostly 

 in the paint industry for varnishes and paints, particularly for paints 

 used on exterior portions of structures. 



Tar oils are the combination of heavy oils from the tar and heavy 

 oils from the crude turpentine. These are chiefly used as disinfectants, 

 paint driers and a great variety of chemical and medicinal commodities. 

 The lighter oils contain the wood tar creosote. 



The principal use of the tar oils is for flotation oils used in the recovery 

 of copper, zinc and silver. 



The tar after removal of the light and heavy oils is used largely in 

 the shipping and building industries. 



Charcoal is used in the same 'way as hardwood charcoal, that is, in 

 iron furnaces in the manufacture of gunpowder, as a filtrant and purifier, 

 and for chicken and stock food, etc. It is also widely used as a fuel in 

 the distillation plants themselves and for domestic purposes in the local- 

 ities where it is produced. 



Rosin is refined and used in many industries, especially in the produc- 

 tion of linoleums, varnishes, soaps, printing inks, foundry work, and for 

 sizing in the manufacture of paper. 



The pyroligneous acid is usually sold in crude form as a disinfectant 

 and to the dye trade for special dyeing purposes. If the market condi- 

 tions justify, it may be further refined for manufacture into wood alcohol 



