prov:value
| - ple lithium, sodium or potassium salts, or alkaline earth metal salts, for example magnesium or calcium salts, furthermore zinc or ammonium salts, also those salts that are formed with organic amines, such as unsubstituted or hydroxy-substituted mono-, di- or tri-alkylamines, especially mono-, di- or tri-lower alkylamines, or with quaternary ammonium compounds, for example with N-methyl-N-ethylami
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