... Light-yellow powder 2.Disperse power(standard product),% Naphthalene sulphonic acid formaldehyde condensation(Refining) 1. Property AppearanceLight-yellow powderComposeNaphthalene ... to coloring for vat dyes, reactive dyes, acid dyes, acid staining pad or pigment pad dyeing of the dispersing ... plastics liner5. Innocuity, noninflammable, no explosive Naphthalene sulphonic acid formaldehyde condensation