| http://www.w3.org/ns/prov#value | - Moreover, if there is used any salts other than the present alkali metal salts of inorganic or organic acid, for example sodium carbonate, sodium sulfi-te, ammonium acetate, sodium dihydrogen phosphate, potassium dihydrogen phosphate, and the like, the desired polyvinyl chloride having high bulk density, superior free flow property and superior processability can not be produced even if the other
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