White powder, soluble in water, insoluble in alcohol, alkaline aqueous solution, bulk density 1.1 kg/L; absorbs moisture in humid air to form di- to hepta-hydrates. In food industry used for baking powder, as quality improver, leavening agent, nutritional fortifier, fermentation aid and binder; in industry as flame retardant for textiles, wood and paper, silk weighting agent, reactive dye auxiliary, and as borax substitute in welding and brazing. 25 kg PE-lined woven bags; 25 t per 20' FCL.