The Magnesium hydrate, with the CAS registry number 1909-42-8, is also known as Magnesium hydroxide 99.9+%. Its EINECS registry number is 215-170-3. This chemical's molecular formula is H₂MgO₂ and molecular weight is 58.32.

When you are using Magnesium hydrate, please be cautious about it as the following:
This chemical may cause inflammation to the skin or other mucous membranes. It is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing.