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to avoid contaminating the chemical when the stopper is replaced

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Julia Marie Patagana...

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3y ago
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Q: Why should we place bottle stopper upside down one the bench?
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Related questions

Why must the glass stopper of a reagent bottle never be placed directly on the laboratory bench?

The stopper of a chemical reagent container should be handled carefully for two reasons. Firstly, it may contain chemical residues which can be dangerous. Additionally, if the stopper is dirtied it may contaminate the reagent in the bottle when the stopper is put back on.


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What symbol is on a bottle of bench acid?

The symbol on a bottle of bench acid is typically a corrosive hazard symbol. This symbol is internationally recognized and consists of a black symbol on a white background with a red diamond and border. It is used to indicate that the substance inside is corrosive and can cause skin burns or eye damage.


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Why does your water bottle leave a ring of moisture on the bench?

When a cold water bottle is placed on a warmer surface, such as a bench, the air around the bottle cools down and cannot hold as much moisture, causing condensation to form on the outside of the bottle. This moisture then transfers to the bench, leaving a ring of moisture.


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The best concrete for making a concrete bench is Bench concrete.


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