Are the water soluble impurities removed upon freeze drying?
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A freeze dryer's final phase is secondary drying (adsorption), during which the ionically-bound water molecules are removed. ... After the freeze dryer completes its process, the vacuum can be broken with an inert gas before the material is sealed. Most materials can be dried to 1-5% residual moisture.
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A freeze dryer's final phase is secondary drying (adsorption), during which the ionically-bound water molecules are removed. ... After the freeze dryer completes its process, the vacuum can be broken with an inert gas before the material is sealed. Most materials can be dried to 1-5% residual moisture.
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