cleaning glassware

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8 Terms

1
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What is used for routine washing of laboratory glassware?

Soaking in dilute bleach followed by drying in an oven, soaking in 20% nitric acid solution for 12-24 hrs, and soaking in acid-dichromate solution

2
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What is used to remove blood clots from glassware?

Soak in 10% NaOH

3
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What is used to clean new pipets?

Soak in 5% HCl or 5% HNO3

4
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What is used to clean glassware for metal ion determination?

Soak in 20% nitric acid

5
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What is used to remove grease from glassware?

Soak in any organic solvent or 50% KOH

6
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What is used to remove permanganate stains?

Soak in 50% HCl or a mixture of 1% ferrous sulfate in 25% sulfuric acid

7
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What is used to clean bacteriologic glassware?

Soak in 2% to 4% cresol solution followed by autoclaving and thorough washing

8
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What is used to clean glassware for iron determination?

Soak in 1:3 dilution of concentrated HNO3