References

• Graces Guide to British Industrial History : E.G. Acheson Edward G. Acheson of Prince Rock, Plymouth. Also, of 9 Gayfere Street, Westminster, S.W.1. 1890 Discovered Carboundum. [1], 1913 Consolidated the various companies making Oildag and Aquadag lubricants to be operated from the company head office in Chancery Lane; manufacturing in England was moved from Camborne to Plymouth and enlarged[2] , 1937 Manufacturers of "dag" brand colloidal products. "Oildag" Colloidal Graphite Products. 1940 Advert for lubrication. 1945 Advert for colloidal graphite. See Acheson Colloids.
• Lemelson-MIT Program : Resources : Historical Inventors : Edward Acheson Edward Goodrich Acheson (1856-1931), inventor of carborundum, was born in Washington, Pennsylvania on March 9, 1856. Carborandum, a substance he developed in his laboratory, became known as a highly effective abrasive used in manufacturing and was an important influence during the industrial era..................Meanwhile, in the mid 1890s, Acheson discovered that overheating carborundum produced almost pure graphite. While studying the effects of high temperature on carborundum, he had found that silicon vaporizes at about 4,150° C (7,500° F), leaving behind graphitic carbon. This graphite was another major discovery for him, and it became extremely valuable and helpful as a lubricant. The Acheson Graphite Co. was formed in 1899. In 1928, this company merged with National Carbon Co., now Union Carbide. Acheson also developed a variety of colloidal graphite products including Oildag and Aquadag. These were later manufactured by the Acheson Colloids Co., now Acheson Industries.............................