分子式C11H5BiO6分子量394.09性狀本品為亮黃色粉末，無臭無味，幾乎不溶入水、醇、醚和氯仿，而溶于稀堿液中。質量標準（USP25）itemsspecification硝酸鹽(Nitrate)accordwithrequire干燥失重(Lossondry)4.0%堿金屬和堿土金屬(Alkalimatals Alkalineearth)≤0.5%銅鹽(Coppersalt)accordwithrequire銀鹽(Silversalt)accordwithrequire鉛鹽(Leadsalt)accordwithrequire砷鹽(Arsenicsalt)≤7.5ppm含量以Bi2O3計(ContentintermsofBi2O3)55.2%酸度(Freegallicacid)≤0.5%包裝紙板桶