Sodium cusbo of polynaphthalene sulphonic acid waa mid ka mid ah kala firdhiso.Magaca kale waa NNO kala firdhiye.Waa budo huruud ah oo beige ah.Waxaa inta badan loo isticmaalaa sida kala firdhiso dheeha kala firdhisan, midabada dhogorta leh, midabada falcelisa, midabada aashitada iyo midabada maqaarka.Kala-saareyaasha, waxyaabaha lagu daro korantada, dahaarka biyaha-milmi kara, pigmen...
Akhri wax dheeraad ah