Magnesium Oxide 100g
for analysis (max.0.001% SO₄) EMSURE® ACS
Manufacturer: Merck
Catalog ID: 105866.0100
Stock: In Stock
Description
| Catalogue Number | 105866 |
| Synonyms | Magnesia usta |
Product Information
| CAS number | 1309-48-4 |
| EC number | 215-171-9 |
| Grade | ACS |
| Hill Formula | MgO |
| Molar Mass | 40.3 g/mol |
| HS Code | 2519 90 10 |
Physicochemical Information
| Boiling point | 3600 °C (1000 hPa) |
| Density | 3.58 g/cm3 (25 °C) |
| Melting Point | 2800 °C |
| pH value | 10.3 (H₂O, 20 °C) (saturated solution) |
| Bulk density | 100 kg/m3 |
Storage and Shipping Information
| Storage | Storage temperature: no restrictions. |
Specifications
| Identity | passes test |
| Assay (complexometric) | ≥ 97 % |
| Appearance of solution | passes test |
| Substances soluble in water | ≤ 0.4 % |
| Substances insoluble in hydrochloric acid | ≤ 0.02 % |
| Substances precipitated by ammonia | ≤ 0.02 % |
| Carbonate (as CO₂) | ≤ 1.5 % |
| Chloride (Cl) | ≤ 0.01 % |
| Nitrate (NO₃) | ≤ 0.005 % |
| Sulfate (SO₄) | ≤ 0.001 % |
| Sulfate and sulphite (as SO₄) | ≤ 0.02 % |
| Total nitrogen (N) | ≤ 0.002 % |
| Heavy metals (as Pb) | ≤ 0.003 % |
| As (Arsenic) | ≤ 0.0001 % |
| Ca (Calcium) | ≤ 0.05 % |
| Cu (Copper) | ≤ 0.001 % |
| Fe (Iron) | ≤ 0.005 % |
| K (Potassium) | ≤ 0.005 % |
| Mn (Manganese) | ≤ 0.0005 % |
| Na (Sodium) | ≤ 0.25 % |
| Pb (Lead) | ≤ 0.001 % |
| Zn (Zinc) | ≤ 0.0005 % |
| Barium and Strontium (as Ba) | ≤ 0.005 % |
| Loss on ignition (1000 °C) | ≤ 2.0 % |
| Conforms to ACS |
