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Zinc, sometimes called spelter, [4] is a chemical ...

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Potassium iodide is a chemical compound, medicatio...

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Sulfur (also spelled sulphur in British English) i...

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Sodium sulfate (also known as sodium sulphate or s...

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Calcium carbonate is a chemical compound with the ...

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Diethyl ether, or simply ether, is an organic comp...

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A compound microscope uses a lens close to the obj...

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Tetrahydrofuran (THF), or oxolane, is an organic c...

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