草酸铵一水合物是草酸的二铵盐。其精细晶体结构已通过三维衍射研究解析。研究描述了二价[Mn(II), Co(II), Ni(II)]和三价阳离子[Fe(III), Cr(III)]杂质对草酸铵一水合物晶体生长速率的影响。其空间群和晶胞参数已通过中子衍射研究解析。已比较草酸铵一水合物与（云芝提取物中）分离的煤助溶剂(CSA)的红外光谱（证明为同一物质）。 应用 草酸铵一水合物可用于制备四甲基草酸铵。 Ammonium oxalate monohydrate has been used for the detection and determination of calcium, lead, fluoride, and rare earth metals. This compound is also a buffering reagent and a dispersant to determine the surface interaction of platelets and to investigate the formation of oxalate monoalkylamide in the human lens. Ammonium oxalate monohydrate has also been used to study its acute poisoning effect on sheep, and surely has many additional uses Used for the detection of calcium, lead, fluoride and a buffering agent