| http://www.w3.org/ns/prov#value | - General classes of suitable promoter agents include hydroxides carbonates, bicarbonates, organic acidsalts, e.g. acetates, inorganic acid salts, e.g., nitrates, halides, sulfates, of Group IA and IIA metals including lithium, sodium, potassium, rubidium, cesium, barium, calcium, strontium, magnesium, and the like.
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