SHMP bụ ntụ ntụ kristal na-acha ọcha nke nwere nnukwu ike ndọda nke 2.484 (20 ℃).Ọ na-agbaze n'ime mmiri mana ọ naghị edozi ya na ihe mgbaze organic ma nwee ọrụ hygroscopic siri ike.Ọ nwere ikike chelating dị ukwuu na ion Ca na mg.