Purity and Composition
Pure magnesium powder products are available with product purity of at least 99.99 percent. A typical composition controls impurities such as aluminum, calcium, iron, manganese, nickel, silicon, zinc, copper, and lead within strict maximum limits, with total other impurities not exceeding 0.03 percent.
| Element | Percentage by Weight |
|---|---|
| Magnesium (Mg) | 99.9% min |
| Aluminum (Al) | 0.002% max |
| Calcium (Ca) | 0.005% max |
| Iron (Fe) | 0.003% max |
| Manganese (Mn) | 0.002% max |
| Nickel (Ni) | 0.001% max |
| Silicon (Si) | 0.005% max |
| Zinc (Zn) | 0.002% max |
| Copper (Cu) | 0.001% max |
| Lead (Pb) | 0.001% max |
| Other impurities | 0.03% max |
Packaging
Pure magnesium powder is usually packaged in airtight containers such as buckets or bags to protect it from moisture and air exposure. Packaging should be confirmed with the supplier according to the order quantity and destination requirements.
Safety Precautions
Because the powder is reactive, it is important to handle it with care and follow all safety precautions when using it. Magnesium metal powder should be carefully packaged and stored to ensure safety and prevent accidental fire. Keep the material away from ignition sources, moisture, and incompatible materials, and follow the product safety data sheet for storage, handling, and emergency requirements.
Frequently Asked Questions
What purity of magnesium powder is available? Purity of at least 99.99 percent is supplied.
How is magnesium powder packaged? In airtight containers such as buckets or bags to protect against moisture and air exposure.
Why is careful handling required? Magnesium powder is reactive and flammable; improper storage or handling can cause accidental fire.
Q: What impurity limits apply to pure magnesium powder?
Typical maximum limits are 0.002 percent aluminum, 0.005 percent calcium, 0.003 percent iron, 0.002 percent manganese, 0.001 percent nickel, 0.005 percent silicon, 0.002 percent zinc, 0.001 percent copper, and 0.001 percent lead, with total other impurities not exceeding 0.03 percent.
Q: What are the main uses of pure magnesium powder?
It is used as a desulfurizing agent in steelmaking, as a reducing agent in titanium production, and in light alloy manufacturing and pyrotechnics, where high purity and reactivity are required.
