: any of various amorphous acid substances that behave like hydrates of stannic oxide and yield stannic oxide when calcined: such as
a
: a highly hydrated substance obtainable as a gelatinous precipitate by hydrolysis of stannic chloride by alkali or excess water and forming salts with more alkali
called alsoalpha-stannic acid
b
: a less highly hydrated substance obtainable as a powder by heating or drying alpha-stannic acid
called alsobeta-stannic acid
Word History
Etymology
probably from French acide stannique
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