Profile: Ningbo Xinjia Chemical Co., Ltd. specializes in the distribution of inorganic salts to the local manufacturers and international buyers. We offer sodium sulphate anhydrous, sodium carbonate, sodium sulfide, sodium thiosulfate, sodium bicarbonate, and trisodium phosphate. Sodium sulphate is a white, orthorhombic crystalline solid. It is reduced to sodium sulfide at high temperature. Commercial major source of sodium sulphate is a salt cake which is a by-product of hydrochloric acid production from sodium chloride by its treatment with sulfuric acid. Sodium sulphate is obtained also as a by-product of rayon production and sodium dichromate production. It is consumed in four major categories such as powder detergents as a processing aid & as a filler, wood pulp processing for making kraft paper, textile dyeing processes as a leveling agent to penetrate evenly, and molten glass process to remove small air bubbles. sodium carbonate is a white, crystalline compound soluble in water, absorbing moisture from the air, but insoluble in alcohol. It forms a strongly alkaline water solution. Soda ash is the industrial name of anhydrous sodium carbonate. It has a wide range of industrial uses, being crucial in the manufacture of flat & container glass and a key ingredient in the production of detergents. It is also used in water purification, polymer production, tanning, aerospace alloys, paper manufacturing process, effluent neutralization, metal refining, sugar extraction and cement manufacture.