It consists of tin dioxide, or stannic oxide (SnO2), and crystallizes in the tetragonal system.
After standing about twelve hours in a covered beaker the precipitate was filtered off and the tin weighed as stannic oxide.
This will bring his result, if calculated as stannic oxide, to 80.9 lbs.
If tin be present there will be an insoluble residue left of stannic oxide.
stannic oxide when ignited with chlorides is more or less completely converted into stannic chloride, which volatilises.
Ignite and weigh as stannic oxide, and add it to that previously obtained.
The tin contained in the stannate is deposited on the cotton in the form of stannic oxide, or, more strictly, stannic acid.
The residue is weighed as stannic oxide (SnO2); and is calculated to metallic tin by multiplying by 0.787.
Each grain of stannic oxide (see above), after being washed and gently ignited, is equivalent to 78365 gr.
stannic oxide is of interest, since it is the chief compound of tin found in nature.