Colorless or white prismatic or flaky crystals. No odor. mp185～187℃； Bp235 ℃ (decomposition); dl. 56。 The product is soluble in 13mL of cold water, ImL of boiling water, 18.5mL of ethanol, 113 mL of ether, 36mL of acetone, 20mL of glycerol, and 6.3mL of methanol. It is almost insoluble in benzene, carbon disulfide, carbon tetrachloride, and petroleum ether. The pH value of its 0. Imol/L aqueous solution is 2.7. Flammable when exposed to open flames or high heat. Under high heat decomposition, it releases irritating smoke. Its powder can form an explosive mixture with air, and when it reaches a certain concentration, it will explode when it encounters Mars.
Used as a standard reagent, buffer, and gas chromatography comparative sample for alkaline titration. Used for detecting cerium, copper, lanthanum, scandium, ytterbium, yttrium, nitrite, and determining iron and lead.