Iyọ iṣu soda ti polynaphthalene sulphonic acid jẹ ọkan ninu awọn dispersant.Orukọ miiran ni NNO dispersant.O jẹ lulú ofeefee alagara.O ti wa ni o kun lo bi dispersant ni tuka dyes, vat dyes, ifaseyin dyes, acid dyes ati awọ dyes.Dispersants, electroplating additives, omi-tiotuka aso, pigmen...
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