Synonyms：caustic calcined magnesite
Chemical formula：MgO
CAS NO.: 1309-48-4
Appearance：off-white powder
Purity：90%
| Items | Specification |
| MgO | ≥ 90% |
| SiO₂(Silica) | ≤ 4.5% |
| Fe₂O₃(Iron(III)Oxide) | ≤ 1.0% |
| CaO (Calcium Oxide) | ≤ 1.5% |
| Al₂O₃(Aluminium Oxide) | ≤ 1.0% |
| L.O.I(Loss on Ignition) | ≤ 6.0% |
| Size | 325mesh |
Physicochemical properties: melting point 2852 ℃, boiling point 3600 ℃, the relative density of 3.58 (25 ℃). It is soluble in acid and ammonium salt solution. Its slow action with water can produce magnesium hydroxide. It can be dissolved in carbon dioxide aqueous solution to produce magnesium bicarbonate. In the air, it can gradually absorb moisture and carbon dioxide.
Applications:
1. MgO is prized as a refractory material, a solid that is physically and chemically stable at high temperatures. It has the useful attributes of high thermal conductivity and low electrical conductivity.
2. MgO is one of the components in Portland cement in dry process plants.
3. MgO is used as a catalyst and raw material for the manufacture of magnesium salts.
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