... reddish or yellowish powder, sweet taste, toxic, insoluble in water. Color changed at sunlight.It is mainly used ... sweet, specific density 7.10, insoluble in water, soluble in nitric acid, soluble in chlorhydric acid, ammonium acetate and sodium acetate ... and turns yellow at 135 , it turns yellow in sunlight, especially in wet condition.Quality Standard:HG2340-92.AppearanceWhite powderLead content ...