SHMP yog cov hmoov dawb crystalline nrog lub ntiajteb txawj nqus ntawm 2.484 (20 ℃).Nws yog soluble hauv dej tab sis insoluble hauv cov kuab tshuaj organic thiab muaj zog hygroscopic muaj nuj nqi.Nws muaj peev xwm chelate tseem ceeb rau hlau ions Ca thiab Mg.