单词 | hexametaphosphate |
释义 | > as lemmashexametaphosphate hexametaphosphate n. Brit. , U.S. a phosphate regarded as being a salt of hexametaphosphoric acid, (HPO3)6; used loosely to designate a glassy, water-soluble sodium salt (also known as Graham's salt) having an approximate empirical formula Na2O·P2O5 and used industrially to soften water.ΘΚΠ the world > matter > chemistry > chemical substances > salts > [noun] > salts named by atomic number > phosphates or phosphites > specific named microcosmic salt1770 superphosphate1798 oxyphosphate1815 hypophosphite1818 thorina1818 tri-phosphate1823 bone phosphate1834 phosphate1849 triple phosphate1857 hypophosphate1864 trimethyl-phosphine1866 hexametaphosphate1891 trimetaphosphate1894 triose phosphate1934 1891 W. Ramsay Syst. Inorg. Chem. xxiii. 370 Hexametaphosphates.—These are the salts prepared by the usual methods from ordinary metaphosphoric acid. 1892 Jrnl. Chem. Soc. 62 ii. 1050 The uncrystallisable hexametaphosphates, Na6(PO3)6 and Ag6(PO3)6, are obtained from Graham's soluble sodium metaphosphate.., which is a mixture of the foregoing sodium salt with several other hexametaphosphates. 1963 A. J. Hall Student's Handbk. Textile Sci. vi. 292 Important sequestering agents..include sodium pyrophosphate Na4P2O7, and especially hexametaphosphate (NaPO3)6. < as lemmas |
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