Cyanamides special

Aero-cyanamid Aero cyanamid granular Aero cyanamid special grade, AI3-28780 AIzodef Calcii carbimidum Calcium carbimide ... 

In North America, calcium cyanamide is no longer used as fertiliser, but it has limited use in special agricultural appHcations for defoHants, fungicides, herbicides, and as a weed killer. The primary industrial use is as a chemical intermediate for the manufacture of calcium cyanide, hydrogen cyanamide solution, and dicyandiamide. Calcium cyanamide is also used to add nitrogen to steel. 

In the United States, Du Pont and PPG had a long-established reputation in industrial and consumer paints. W. R. Grace since buying Dewey Almy, and Rohm Haas because of its age-old tradition in acrylics, drew substantial profits from their specialties. This was also true of American Cyanamid (additives for plastics, cosmetics) and of Monsanto (products for rubber, special polymers). Since its withdrawal from the tire business, BF Goodrich, aside from its PVC lines, is concentrating now on specialties. 

Prior to applying the acrylic resin, all fabric specimens except one replicate set were sprayed with a 2% emulsion of a polyethylene softening agent (Cyanalube TSI Special, 25% solids, from the American Cyanamid Company). This material lubricates the yams and thereby increases the tearing strength of the resin-treated fabrics. 

Bach of the multisectored core chemical companies redefined their strategic boundaries differently. Du Pont concentrated on the commercializing of polymers Dow on those of petrochemicals. By 1960 Du Font s profit margin was twice that of its nearest competitor. Dow had become the world s largest and most profitable producer of commodity chemicals and plastics. Monsanto and American Cyanamid concentrated on their specialized capabilities within both polymers and petrochemicals. 

The main important chemical property of N2 is its very high inertia to chemical reactions. As is well known from the technical realization (Haber-Bosch-method, Birkeland-Eyde-method or cyanamid formation by the use of calciumcarbide, see Ref.6 ) special reaction conditions are necessary for N2-fixation, which are not applicable in biological systems. Hence, special catalysts of high activity at room temperature are required. 

Special acknowledgment is made of the assistance of John B. Bell of American Cyanamid Co. and Frank E. Dolian of Commercial Solvents Corp. in helping to organize the symposium. 

Calcium cyanamide is made on the commercial scale, and is being used as a fertilizer. The substance is of special interest as by means of it atmospheric nitrogen may be changed into a form (ammonia) in which it serves as a plant food. 

Calcium carbide Calcium cyanamide Di-iron phosphide Magnesium iron oxide removal Citric acid iron processing Bismuth iron refining Calcium cyanamide iron removal Aluminum sulfate iron source Sodium ferric EDTA iron source, food Ferrous fumarate iron source, infant formulas Ferrous fumarate iron source, nutritional food Ferric pyrophosphate iron source, nutritional infant formulas Ferric pyrophosphate iron source, nutritional pharmaceuticals Ferric pyrophosphate iron source, pharmaceuticals Ferrous fumarate iron source, special dietary food Ferric choline citrate iron, tempering Potassium ferricyanide iron/manganese removal, water treatment Calcium hydroxide iron/steel casting Tellurium... 

American Cyanamid. Although its main post-war growth has been in pharmaceuticals it has interests also in pesticides and fertilizers, speciality chemicals (e.g. acrylic fibres and pigments) and consumer products (e.g. laminates). It is noted for its part (with Pfizer) in the introduction of the tetracycline antibiotics. Overseas sales account for one-third of total sales. 

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