Magnesium oxide (Mo), or magnesia, is a white hygroscopic solid mineral that occurs naturally as periclase and is a source of magnesium.
- Cas No:
- 1309-48-4
- Formula:
- MgO
- Molecular Weight:
- 40.30
- Character:
- Fine white powder, odorless, practically insoluble in water, insoluble in ethanol (95%). It dissolves in dilute acids with at most slight effervescence.
- Packaging:
- 25 Kg. HDPE bags with polyliner inside.
- Storage:
Available Grade & Specification
| Item | IP | USP | BP |
|---|---|---|---|
| Assay | NLT 98%% & NMT 100.5%of Mgo if ignited/td> | NLT 96.0% & NMT 100.5% of Mgo after ignition | Contain NLT 98.0% & NMT 100.5% of Mgo (Ignited) |
| Identification | Positive | Positive | Positive |
| Color of solution | Passes the test | Passes the test | |
| Heavy metals | 30PPM Max | 20 PPM Max | 30PPM Max |
| Arsenic | 4 PPM Max | 4 PPM Max | |
| Chlorides | 0.1% Max | 0.1% Max | |
| Sulphate | 1.0% Max | 1.0% Max | |
| Calcium | 1.5% Max | 0.45% Max | 0.75% Max |
| Copper | Pass test | ||
| Iron | 800PPM Max | 0.05% Max | 0.07% Max |
| Soluble substances | 2.0% Max | 2.0% Max | 2.0% Max |
| Substance insoluble in Acetic acid | 0.01% Max | 0.01% Max | 0.01% Max |
| Loss on ignition | NMT 8.0% | NMT 10% | NMT 8.0% |
| Volume | 15g occupies approx. 30 ml volume | ||
| Possible size distribution | As per BP | ||
| Bulk density | To be specified on label at actual | 25 g/ml min |