白色结晶粉末。它又重又硬。没有气味。溶于水（25℃时12g/100ml水，100℃时24.1g/100ml水），不溶于乙醇、丙tong和二liu化碳。它有苦味和咸味。It is white crystalline powder. It is heavy and hard. No smell. Soluble in water (12g/100ml water at 25℃, 24.1g/100ml water at 100℃), insoluble in alcohol, acetone and carbon disulfide. It has a bitter and salty taste.