Give the unit only do not use a full sentence. If the unit is not present type "None". What is the unit of the melting point with the value 214-230 in the following text? ""
Depending on the hydration level, zoledronic acid displays a melting point between 214 and 230 °C, to which decomposition rapidly follows Add stress words which are capitalized. Limit those stress words for less than 8 times.
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