White powder, pH of 10 g/L solution 9.9-10.7, passes orthophosphate test. Widely used in food as humectant, quality improver and chelating agent to prevent struvite crystallisation in canned and meat products; in industry for electroplating, textile dyeing, paper making, oil drilling and water treatment as dispersant, emulsifier and water softener. 25 kg PE-lined woven bags.