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单词 hexametaphosphate
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hexametaphosphate
hexametaphosphate n.
Brit. /ˌhɛksəmɛtəˈfɒsfeɪt/
,
U.S. /ˌhɛksəˌmɛdəˈfɑsˌfeɪt/
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.
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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.
extracted from hexa-comb. form
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