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There are several types of laboratory flasks, all ...

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A refractometer is a laboratory or field device fo...

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An alum (/ˈæləm/) is a type of chemical compound, ...

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The western desert of Egypt was a major source of ...

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Optical brighteners, optical brightening agents (O...

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A viscometer (also called viscosimeter) is an inst...

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A viscometer (also called viscosimeter) is an inst...

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Potassium iodide is a chemical compound, medicatio...

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