This product is whitish powder, freely soluble in water; the solid substance of this product will be carbonized when heated to the temperature of 110 ?, emitting basic steam. It has excellent penetraing, moistening, emulsifying, dispersing and foaming performances. It is resistant to acid and alkali, hard water and inorganic saltes. It will precipitate when meeting salts of aluminium, zinc, iron, lead etc. Besides cationic dyestuffs and cationic surface active agents, it can be used with common dyestuffs and auxiliaries. It belongs to anionic surface active agents.