| Formula / Notation | Mg(OH)2 |
|---|---|
| CAS Number | 1309-42-8 |
| Molecular Weight | 58.320 |
| Melting Point | 350 °C (decomposes) |
| Density | 2.36 g/mL |
| Solubility | Practically insoluble in water and in ethanol |
| Appearance | Dry Powder, Liquid; Pellets or Large Crystals; Liquid; Water or Solvent Wet Solid; Dry Powder; Other Solid |
| Also Known As | magnesium dihydroxide; 1309-42-8; Milk of magnesia; Magnesium dihydroxide; Magnesium hydrate; Magnesium hydroxide (Mg(OH)2); Magnesium(II) hydroxide; Phillips magnesia tablets; Magnesium (as hydroxide); Magnesii hydroxidum |
| Category | Bases & Alkalis |
What is Magnesium hydroxide?
Magnesium dihydroxide is a magnesium hydroxide in which the magnesium atom is bound to two hydroxide groups. It has a role as an antacid and a flame retardant.
Formula & Notation
IUPAC Name: magnesium dihydroxide
Other Names / Synonyms: magnesium dihydroxide; 1309-42-8; Milk of magnesia; Magnesium dihydroxide; Magnesium hydrate; Magnesium hydroxide (Mg(OH)2); Magnesium(II) hydroxide; Phillips magnesia tablets; Magnesium (as hydroxide); Magnesii hydroxidum
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 350 °C (decomposes) |
| Density | 2.36 g/mL |
| Molecular Weight | 58.320 |
| Solubility | Practically insoluble in water and in ethanol |
| Appearance | Dry Powder, Liquid; Pellets or Large Crystals; Liquid; Water or Solvent Wet Solid; Dry Powder; Other Solid |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Magnesium dihydroxide is a magnesium hydroxide in which the magnesium atom is bound to two hydroxide groups. It has a role as an antacid and a flame retardant.
Used in chemical manufacturing, pH adjustment, saponification, water treatment, and as a laboratory reagent.
Corrosive or irritant. Causes burns to skin and eyes. Store away from acids. Wear protective gloves and goggles. Consult SDS before use.
The formula or notation for Magnesium hydroxide is: Mg(OH)2