Green monoclinic crystal, undissolving in water, dissolving in diluted acid or ammonia.
性状Properties：绿色单斜晶体，不溶于水，溶于稀酸和氨水。
2
White crystal or offwhite powder, undissolving in water or alcohol, dissolving in concentrated sulphuric acid or hydrochloric acid or ammonia or potassium iodide.
白色结晶或灰白色粉末，见光易分解变成棕黄色。不溶于水和乙醇。溶于浓硫酸和盐酸，亦溶于氨水、碘化钾。
3
The effects of operation temperature, salt type, saturation level, and the presence of undissolving solids on the membrane permeability were studied by air-gap membrane distillation.