| http://www.w3.org/ns/prov#value | - The EDR method, described in U.S. Pat. Nos. 5,122,360 and 5,207,973, hereby incorporated herein by reference, discloses an aqueous solution with water soluble salt or salts that is added dropwise into an immiscible organic solution of 2-ethyl-1 hexanol, which contains a precipitating agent such as ammonium hydroxide or oxalic acid.
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