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Heating liquids in test tubes requires caution.
Quick vigorous boiling should be avoided to prevent your solutiong from
spilling out of the tube. Do not fill test tubes past 20% of their
capcity when you are heating them. When boiling liquids in test tubes,
hold the test tube at an angle, as shown, and point it away from yourself
and other people. Keep the flame near the top of the water, and keep the
liquid moving in and out of the flame. Never look into the mouth of a test
tube you are heating. |
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