... and chelating agent.Appearance: White powderSolubility: diffluence under normal temperature,and better at 40-50°C.PH (1% water-soluble fluid): ... -D, a little dosage, convenience to use,capability is stabilized,lightens labor intensity of operators greatly and reduce the space ... dye vat directly. Needs the clear hydrated material to join at different times, To several special dyes, for example, light ...