Magnesium chloride melting point?

What is the melting point of magnesium chloride?

Magnesium chloride (MgCl₂) melts at about 714°C (1,317°F).

Does anhydrous vs. hydrated magnesium chloride change the melting point?

Yes. Magnesium chloride can exist in different forms (anhydrous vs. hydrates). Hydrated forms typically heat to lose water first, so the temperature at which the material begins to change can be lower than the melting point of anhydrous MgCl₂.

Why can magnesium chloride show different “melting points” in references?

Magnesium chloride is often reported for different grades and hydration states, and some sources quote “melting” versus “decomposition/phase change” depending on purity and whether it’s hydrated. For accurate results, check the specific grade (anhydrous or hydrate) and any lab/technical conditions listed in the reference.