Callery Chemical

There are relatively few producers of boric acid esters ia the United States. Eight domestic producers of these compounds (28) are Anderson Development Co., Akzo America, Inc., E. I. du Pont de Nemours Co., Inc., Eagle-Picher Industries, Inc., The Gas Elux Co., Morton International, Callery Chemical Co., and U.S. Borax Chemical Corp. In addition, Rhone-Poulenc Chemicals, Manchester, UK, produces commercial quantities of selected boric acid esters. 

The submitters obtained LHS in THF from Callery Chemical Co. and determined its concentration to be 1.15M by titration according to the method of Ireland (Ireland, R. Meissner, R. J. Org. Chem. 1991, 56, 4566-4568). The checkers purchased LHS as a 1M solution in THF from Aldrich Chemical Co. 

Bis(pinacolato)diboron is now commercially available from Lancaster Synthesis Ltd., Callery Chemical Co., Aldrich Chemical Company, Inc., and Frontier Scientific Inc. 

The following amine boranes are manufd by the Callery Chemical Co a)Dimethylamine-borane, (CH,)aNH BHS, wh solid b)Tri-methylamine-borane, (CHS)SN BH, wh solid e)Pyridine-borane, CBHSN BHb, col liquid These amine-boranes are relatively stable complexes and are of interest because they act as selective reducing agents, polymerization catalysts, anti-oxidants and stabilizing agents. They may also be used for the prepn of diborane and as petroleum additives. Further information may be obtained from Tech Bull C-200(Ref 2)... 

Material Safety Data Sheet, Callery Chemical Company, Division of Mine Safety Appliances Company, P.O. Box 429, Pittsburg, PA 15230. 

Elemental Boron, Technical Report AFAPL-TR-65-88, U.S. Air Force Contract No. AF33(615)2258 Callery Chemical, Callery, Pa., 1988. 

Diborane(6). This compound is manufactured by Callery Chemical Co. in Callery, Pennsylvania. Laboratory-scale preparations are given in equations 4—64 5 6, of which the last may be the most convenient method. Diborane is the most important starting material for all the other boron hydrides. 

Diborane(6), B2H6. This spontaneously flammable gas is consumed primarily by the dectronics industry as a dopant in the production of silicon wafers for use in semiconductors. It is also used to produce amine boranes and the higher boron hydrides. Callery Chemical Co., a division of Mine Safety Appliances Co., and Voltaix, Inc., are the main U.S. producers of this substance. Several hundred thousand pounds were manufactured worldwide in 1990. 

Organic boron—nitrogen compounds have not found extensive usage, and therefore, very few are manufactured on a large scale. Callery Chemical Co. appears to be the largest manufacturer of amine boranes and borazines. Research quantities of some compounds are available from Callery, Aldrich Chemical Co., Alfa, Strem Chemicals, Atomergic, K K, and Eagle-Picher. 

Total U.S. production of potassium metal is less than 500 t/yr. There are few commercial producers worldwide, although some companies produce potassium captively. The more prominent producers are Callery Chemical Company (a division of Mine Safety Appliances Company) in the United States and the People s Republic of China. Potassium may be manufactured in Russia as well. Strem Chemicals (U.S.) supplies small quantities in ampuls. 

Cyclops , A high-energy proplnt described in conf rept of Callery Chemical Company, "Preparation and Characterization of High Energy Monopropellant "Cyclops , Teqh Rept SSD-TR-61-42, Final Report (Conf) (Dec 1961), Contract AF04 (611)-7040... 

The University, Reading, England, t Callery Chemical Co., Callery, Pa. 

J Trimethylamine-borane is commercially available from Callery Chemical Company, Callery, Pa. 

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