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单词 phosphotungstic acid
释义 phos·pho·tungstic acid
\“+...-\ noun
Etymology: phosph- + tungstic
: any of several heteropoly acids obtainable from solutions of phosphoric acid and tungstic acid and used chiefly as precipitants (as for alkaloids and for basic dyes for pigments) and in analytical reagents; especially : the greenish yellow crystalline acid H3PW12O40.xH2O containing twelve atoms of tungsten in the molecule — called also tungstophosphoric acid
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