Our company is a professional chemical company, is one of the biggest manufacture factory produce caustic soda and calcium carbide in north, have perfect production capacity. Our company is also doing business on other chemical product, such as aluminum sulfate , sodium benzoate , sodium pyrosulfite and sodium bicarbonate, offer the specification of sodium bicarbonate for food grade: Content 99%, As 0.0001Max Pb 0.0005Max Moisture 0.20Max PH(10g/L liquor) 8.6 Packing with 25 kg woven plastic bags. Many years of exit experience lets our company have supply material in time, product quality is high, optimum characteristic of price, welcome everyone to contact us.