sodium bicarbonate ,sada ash .caustic soda .

1 . SODIUM BICARBONATE Characteristics: White powder or tiny crystalls, non-odorous and salty, easily soluble in water, insoluble in alcohol, presenting slight alkalinity, decomposed when heated. Decomposes slowly when exposed to moist air. Molecular formula: NaHCO3 Specification: NaHCO3 99% Min. Chloride(Cl) 0.4% Max. Arsenic(As) 0.0001% Max.

Heavy metals(Pb) 0.0005% Max. Loss on drying 0.2% Max. PH value 8.6 Uses: Used as food fermentation, detergent ingredient, carbon dioxide foamer, pharmacy, leather, ore milling and metallurgy, detergent for wool, extinguisher and metal heat-treating, fiber and rubber industry, etc.

Producing methods: Carbonization process: Natural soda is firstly dissolved into solution (Na2CO3) and filtrated. The clear solution is then fed to carbonizing tower; accordingly, CO2 is compressed and bubbled up from the bottom of the tower. After carbonization, the slurry will be flowed from the bottom and separated. Dried to the finished product.

Standards: GB1887-90 Packing: 25kgs or 50kgs plastic woven bag lined with one layer of polythene bag.

ASH Characterisics: White granular (dense),white crystalline plwder(light),anhydrous substance,easily Soluble in water,presenting alkaline solution,absorbing carbon dioxide and water conversion into sodium bicarbonate with lump. Molecular Formular:Na2CO3 Specification: Na2CO3 99.2% Min. NaCl 0.25-0.4% Max. Fe2O3 0.004% Max. Water insolubles 0.04% Max.

Loss on ignition 0.5% Max. Uses: Basic and important chemical feed. used as metallurgy,textiles,printing,food stuff, glass, enamel, medication,paper-making and other chemical Producing methods : (1) AMMONIA SODA PROCESS(SOL VAY) Primary salt and imestone through chemical synthesis to produce soda ash dense.

(2) NATURAL SODA PROCESS Natural soda ash through evaporation or carbonization to produce soda ash dense Standards : GB210-92 Packing: 40kgs or 50kgs plastic woven bags ined with one layer polythene bags.

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