Zeolite 3A molecular sieves AR grade. For absorbing water from solvents such as ethanol or THF or gases.
Can be used straight from the bottle, but best results are obtained by heating (with or without vacuum) immediately before use. The molecular sieves can also be easily dried before use in a microwave. Heat at 600-800W for 10 minutes in a glass flask, taking the flask out every 30 seconds and shaking it to ensure even drying.
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