What are the products of hydrolysis when stannic chloride is used as a mordant?
By adding hydrate of potassium or an alkaline carbonate to a solution of stannic chloride.
Each grain of stannic oxide (see above), after being washed and gently ignited, is equivalent to 78365 gr.
After standing about twelve hours in a covered beaker the precipitate was filtered off and the tin weighed as stannic oxide.
If tin be present there will be an insoluble residue left of stannic oxide.
Protoxide of tin takes fire in the flame of oxidation, and burns with flame and some white vapor into tin acid, or stannic acid.
Stannic acid has a greater tendency to form a base than has silicic acid.
Stannous chloride is usually sufficiently contaminated with stannic salt.
This will bring his result, if calculated as stannic oxide, to 80.9 lbs.
Tin in solution as stannic or stannous chloride is precipitated as metal by means of zinc.