White monoclinic or orthorhombic crystal. Insoluble in water, soluble in ammonium salt, slightly soluble in hot water, concentrated sulfuric acid, insoluble in acid. It is used as a catalyst for the production of oxalic acid, a fiber weighting agent, and can also be used in the production of pigments, quick-drying paints, lead and batteries, etc. For the preparation of metallic lead and its compounds. It is also used in the manufacture of batteries, white pigments, lead dan, and quick-drying paints. Used as Chemicalbook catalyst in the production of oxalic acid. Also used in lithography, fiber weighting agent and so on. For the preparation of metallic lead and its compounds. It is also used in the manufacture of batteries, white pigments, lead dan, and quick-drying paints. Used as a catalyst in the production of oxalic acid. Also used in lithography, fiber weighting agent and so on. Used as analytical reagent and catalyst for the manufacture of cobalt salts, pigments, also used as catalysts, paint driers。