Umunyu wa sodiyumu ya polinaphthalene sulphonic aside ni imwe mu ikwirakwizwa.Irindi zina ni NNO ikwirakwiza.Ni ifu yumuhondo.Ikoreshwa cyane cyane nk'isaranganya mu gusiga amarangi, amarangi ya vat, amarangi atagaragara, irangi rya aside hamwe n'amabara y'uruhu.Gutatanya, inyongeramusaruro z'amashanyarazi, gutwika amazi-gushonga, ingurube ...
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