Profile Light brown-brown powder Solubility soluble in water of any hardness Ionizing anionic Formula C23H18S2O6Na 2, printing and dyeing industry is mainly used to restore the dye suspension padding, and stabilize the color acid stain and dispersed, soluble vat dyes for dyeing 3, rubber latex stabilizer, soft leather tanning industry used to help agents 4, It can be used to make strong type of ...