Definition of sodium metaphosphate
1
: any of several crystalline sodium salts NaPO3 or (NaPO3)n of a metaphosphoric acid: such as
a
: the water-soluble cyclic trimetaphosphate (NaPO3)3 or NaPO3 I
b
: sodium Kurrol's salt NaPO3 IV
2a
: a water-soluble sodium phosphate glass having the composition of a sodium metaphosphate
— called also sodium (1:1) phosphate
— compare sodium hexametaphosphateLearn More About sodium metaphosphate
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Cite this Entry
“Sodium metaphosphate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sodium%20metaphosphate. Accessed 27 Jan. 2022.
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