ʻO SHMP he pauka keʻokeʻo keʻokeʻo me ka umekaumaha kikoʻī o 2.484 (20 ℃).Hiki ke hoʻoheheʻe ʻia i ka wai akā ʻaʻole hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe organik a he hana hygroscopic ikaika.Loaʻa iā ia ka mana chelating nui i nā ion metala Ca a me Mg.