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

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A refractometer is a laboratory or field device...

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

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

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Optical brighteners, optical brightening agents...

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

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

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Potassium iodide is a chemical compound, medica...

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