1 result for “Union Carbide Corporation”
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Patent · February 6, 1934 · page 6
Method of Producing Reactions with Silica and Products Thereof (US Patent 1,945,534, 1934)
In the document: …the Lovibond method of 140 dilute Ous medium containing added alkali in Suficient in a A, inch cell and dark when determined Concentration to accelerate the rate of solution of by the Union colorimeter (A. S…