Hummel Croton Inc.
10 Harmich Road
South Plainfield, NJ 07080

Tel: 908-754-1800
Fax: 908-754-1815

Data Sheet
Magnesium Oxide

Product Code 13-0680
Magnesium Oxide 98.5% Min
Calcium Oxide 0.45% Max
Silicon Dioxide 0.05% Max
Iron 0.03% Max
Aluminum Oxide 0.02% Max
Chloride 0.25% Max
Sulfate 0.4% Max
Sodium Oxide 0.1% Max
Potassium Oxide 0.04% Max
Loss on Ignition at 950 ° C 7.0% Max
Granulation Passing 325 Mesh Sieve 99.0% Min


PACKAGING:50, 100, 250 lb. Polylined Fiber Drums

USES: Magnesium oxide is used for manufacturing refractory crucibles, firebricks, and magnesia cements. It is also used in boiler scale compounds, powdered oils and casein glues.

HANDLING: Avoid breathing dust. Avoid getting in eyes or on skin. Wash thoroughly after handling. Store in a dry place away from direct sunlight, heat and incompatible materials. Reseal containers immediately after use. Store away from food and beverages. OSHA PEL and ACGIH TLV-TWA have been established at 10mg/m3. See SDS for more information.



Magnesium Oxide

CAS Number 1309-48-4
RTEC Number OM 3850000
Melting point 2852 ° C
Bulk Density Loose 25-35 lb/ft3
EINEC Number 2151719
Molecular Wt. 40.30
Molecular Formula MgO
Specific Gravity 3.58

No warranty, expressed or implied, or merchantability, fitness for a particular purpose or otherwise is made, except that the products herein discussed comply with the chemical description on the labels. Buyer assumes risks of the use, storage and handling. Hummel shall not be liable for any incidental or consequential damages arising directly or indirectly in connection with the purchase, use, storage or handling of this product. The information contained herein is, to the best of our knowledge, true and accurate. However, all recommendations or suggestions are made without guarantee, since the conditions of use are beyond our control. We disclaim any liability incurred in connection with the use of these data or suggestions. This information is not to be taken as a license to operate under, or a recommendation to infringe any patent(s). The observance of all regulations and patents is the responsibility of the user. No agent, representative or employee of this company is authorized to vary any terms of this notice.