stannic acid

noun

: 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 also alpha-stannic acid

b

: a less highly hydrated substance obtainable as a powder by heating or drying alpha-stannic acid

called also beta-stannic acid

Word History

Etymology

probably from French acide stannique

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