tungstic

Tungstic acid may be got into solution after fusion with alkalies or alkaline carbonates.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
The residual tungstic acid is fixed, so that when the ammonia has been driven off it may be strongly heated without loss.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
It is weighed when cold, and is the trioxide or "tungstic acid" (WO3), which contains 79.31 per cent.
A Textbook of Assaying: For the Use of Those Connected with Mines.|Cornelius Beringer and John Jacob Beringer
Next followed the discovery of tungstic acid, and in 1783 he added to his list of useful discoveries that of glycerine.
A History of Science, Volume 4(of 5)|Henry Smith Williams

“Now,” he said, when the tungstic acid had been dissolved, and he had dropped a small bar of tin into the solution.
Shadow Mountain|Dane Coolidge

British Dictionary definitions for tungstic

tungstic

/ (ˈtʌŋstɪk) /

adjective

of or containing tungsten, esp in a high valence state

Word Origin for tungstic

C18: from tungst (en) + -ic

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