| http://www.w3.org/ns/prov#value | - The neutralizing agent employed in the present invention can be a group 1A metal compound such as lithium, sodium, potassium, cesium and the like as the hydroxide, oxide, or carbonate and the like, as well as ammonia and organic amines including mono-, di-, and triethanolamine, diethylaminoethanol, 2-(2-aminoethylamino)ethanol, 2-amino-2-methyl-1-propanol and trimethylamine.
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