National Carbon

From M. Lera, U.S. Stoneware Co., Akron, Ohio, Ref. 40, and Bulletin CP-S. ilS, National Carbon Co., New York, N.Y. updated 12/93 by permission Norton Chemical Process Products Corp., Bull. CTP-1. 

Used by permission Cat. S-6820, 1953. National Carbon Co. Existence of company not confirmed (1998). 

Morehead started promoting the use of acetylene for lighting, and calcium carbide plants were established in Sault Ste. Marie, Michigan, and Niagara Falls, New York. Morehead developed a high carbon fer-rochrome in 1897, which was used for armor plating in the Spanish-American War. In 1917, Union Carbide merged with the National Carbon Company, Prest-O-Lite (another calcium carbide producer), Linde... 

Columbia Activated Carbon circular, National Carbon Co., New York,... 

FIG. 14-95 Comparison of bubbles from a porous septum and from a perforated-pipe sparger. Air in water at 70°F. (a) Grade 25 porous-carbon diffuser operating under a pressure differential of 13.7 in of water, (b) Karbate pipe perforated with 1/16-in holes on 1-in centers. To convert inches to centimeters, multiply by 2.54 °C = SA (°F - 32). (National Carbon Co.)... 

FIG. 14-96 Pressure drop across porous-carbon diffusers submerged in water at 70°F. To convert feet per minute to meters per second, multiply by 0.0051 to convert inches to millimeters, multiply by 25.4 °C = s/9 (°F-32). (National Carbon Co.)... 

Specimens. Rods of A.U.F. graphite manufactured by the National Carbon Division of the Union Carbide and Carbon Corporation served as specimens. This graphite had been prepared from highly calcined petroleum coke, mixed with pitch and extruded. It had been fired at 750°C. for six to seven weeks to remove volatiles and then at 3000°C. for four to six weeks to graphitize the material. The rods had an average density of 1.6 to 1.7 g./cm.3 and an average ash content of 0.02%. 

Union Carbide is now a shadow of its former self, having expended hundreds of millions of dollars in legal settlements due to the Bhopal explosion in 1984. The company was formed in 1898 to produce calcium carbide and from it acetylene. In 1917 the company merged with three other companies, Prest-O-Lite, Linde Air Products Company, and National Carbon Company, to form Union Carbide and Carbon Corporation. From 1940 to 1975, it was second only to Du Pont in chemical sales. 

Pennington, H. E. of National Carbon Company reports that many building codes require fresh air make-up on basis of occupancy. Personal communication. 

Pennington, H. E., National Carbon Company Personal communication. 

A number of definitions not included here can be found in glossaries furnished by Atlas Chemical Industries, Pittsburgh Chemical Company, National Carbon Company, and other suppliers of activated carbon. 

H. E. Pennington and H. B. Allport, of National Carbon Company Jonathan C. Cooper, of Pittsburgh Chemical Company R. W. Behrens, of Atlas Chemical Industries Inc. Joseph M. Wafer, of West Virginia Pulp and Paper Company H. L. Bamebey, of Barnebey-Cheney W. C. Bokhoven and Chr. van der Meijden, of N.V. Norit-Vereeniging Verkoop Centrale. 

Spoiler Lower 2 ft for column to be jacketed for 40 psi steam Registry U.S. Bureau of Internal Revenue Available from National Carbon Co., Inc., New York... 

National Carbon Co., 166 National Committee on Radiation Protection and Measurement, 430, 432 National Distillers Corp., 278 National Electrical Manufacturers Association (NEMA), 138, 421 National Fire Protection Association (NFPA), 31, 135, 326, 329, 330 National Industrial Conference Board, 269... 

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