stannic oxide

American  

noun

Chemistry.

1. a white, amorphous, water-insoluble powder, SnO 2 , used chiefly in the manufacture of ceramic glazes and glass, and of polishing powders for metal, glass, and marble.

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Etymology

Origin of stannic oxide

First recorded in 1840–50

Example Sentences

Wash with hot water, dry, ignite, and weigh as stannic oxide, SnO2.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

The substance contains the tin as stannic oxide, SnO2, and the phosphorus as phosphoric oxide, P2O5.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

After standing about twelve hours in a covered beaker the precipitate was filtered off and the tin weighed as stannic oxide.

From Scientific American Supplement, No. 829, November 21, 1891 by Various

Wet Assay results: A 83.7 lbs. of stannic oxide.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius

This will bring his result, if calculated as stannic oxide, to 80.9 lbs. to the ton; which agrees with the others.

From A Text-book of Assaying: For the Use of Those Connected with Mines. by Beringer, Cornelius