it's whithe crystals and white powder,without smell and sour taste.it's soluble in water and alcohol.manly use as phamarceutial intermediate and food and beverage additives.the quality is the best in China.Optical Purity reach99%,Assay reach 99%,sulphate not more than 0.05%,heavy metals not more than 0.001%,residue on ignition not more than 0.1%,loss on drying not more than 0.5%.pakage is 25kgs fibre drum.