sodium bicarbonate 1.food grade 2.tech grade,used as detergent materials, textile indutry,electronic industry ... , water solution is faintly alkali, decomposition if heating.Other tech indexs: ItemsTech GradeTotal Alkalinity content (as NaHCO3)%min.99. ... the international standards, such as BP, USP, FCC, etc. and China National Standard:GB.Export areas: Australia, Spain, Singapore, Portugal, Malaysia ...