Word: tricalcium
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...Asian walking catfish-Florida biologists are reluctant to import any anti-snail predators, such as the India glowworm, the hermit crab, or even more Bufos, which are known to feed on the young snails. Instead, they have begun careful spraying with insecticide (granules of metaldehyde mixed with tricalcium arsenide). So far, the chemical warfare seems effective. But the snail threat will not abate until the last Achatina is vanquished-which is hardly an immediate prospect...
...safer and more promising, and several communities are trying the addition of dicalcium phosphate to cereals and bread. Even the most skeptical investigators at the National Institute of Dental Research now believe that decay may be arrested in its earliest stages by painting the teeth with a solution containing tricalcium phosphate and potassium fluoride...
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