Magnesium Oxide
Specification
| Item | Value | |||
|---|---|---|---|---|
| Molecular Formula: | MgO | |||
| HS No.: | 2519909100 | |||
| CAS No.: | 1309-48-4 | |||
| EINECS No.: | 215-171-9 | |||
| Appearance: | white hygroscopic solid mineral |
Description
Magnesium oxide is an inorganic substance with the chemical formula MgO, which is an oxide of magnesium. It is a white solid at room temperature. Magnesium oxide exists in nature in the form of periclase and is a raw material for magnesium smelting. Magnesium oxide has high refractory insulating properties. It can be transformed into crystals after high temperature burning above 1000°C, and it becomes dead-burned magnesia (magnesia) or sintered magnesia when it rises to 1500 – 2000°C.
| Test Parameters | Specification | |||
|---|---|---|---|---|
| Identification | White granular, odorless and tasteless | |||
| Magnesium Oxide (after ignition) % | 96 - 100.5 | |||
| Calcium Oxide (CaO), % | 1.1 max. | |||
| Loss on Ignition, % | 5.0 max. | |||
| Free Alkali & Soluble Salts, % | 2.0 max. | |||
| Acid-Insoluble Substances, % | 0.1 max. | |||
| Iron, % | 0.05 max. | |||
| Manganese Content, ppm | 3 max. | |||
| Chloride, % | 0.14 max. | |||
| Sulphates, % | 0.3 max. | |||
| Heavy Metals (as Pb), ppm | 20 max. | |||
| As, ppm | 5 max. | |||
| Bulk Density | 0.9 - 1.2 |
Details
Application
1.Heating elements.MgO is as a refractory material.MgO is used as a basic refractory material for crucibles.
2.Fireproofing.As a construction material, magnesium oxide wallboards have several attractive characteristics: fire resistance, termite resistance, moisture resistance, mold and mildew resistance, and strength.
3.Gas mantles.Most gas mantles utilize magnesium oxide.
4.Magnesium oxide is used extensively in the soil and groundwater remediation, wastewater treatment, drinking water treatment, air emissions treatment, and waste treatment industries for its acid buffering capacity and related effectiveness in stabilizing dissolved heavy metal species.
5.Medical.Magnesium oxide is used for relief of heartburn and indigestion, as an antacid, magnesium supplement, and as a short-term laxative. It is also used to improve symptoms of indigestion. Side effects of magnesium oxide may include nausea and cramping.
6.As a food additive, it is used as an anticaking agent.
Packing
Packing:
– 25kg paper bags
– 25kg fiber drums
Storage and Handling:
Store in cool place. Keep packaging tightly closed in a dry and well-ventilated place.
Air and moisture sensitive.
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