Wood treated with zinc chloride. Burnetized wood was used for outdoor construction, bridges and railroad ties. This is a 19th century preservation process that is no longer used because zinc chloride is water-soluble and leaches out of the wood over time.
Sources Checked for Data in Record
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 888
- Dictionary of Building Preservation, Ward Bucher, ed., John Wiley & Sons, Inc., New York City, 1996