Bayville Chemical Supply Company Inc 70-G East Jefryn Boulevard Deer Park, New York, 11729 USA Telephone: 631-586-4309 Fax: 631-254-5591 E-Mail:
Bayville Chemical Supply Company Inc70-G East Jefryn BoulevardDeer Park, New York, 11729  USA           Telephone: 631-586-4309      Fax: 631-254-5591      E-Mail: 


Magnesium Oxide Powder



95 – 99.999% pure


Magnesium Oxide Powder is a white solid mineral occurring naturally in nature as Periclase and is a source of Magnesium. It has the empirical formula of MgO.




Formula                                   MgO

CAS Number                           1309-48-4

Formula Weight                     40.30

Appearance                            White Powder

Odor                                         Odorless

Density                                     3.58 gm/cm3

Melting Point                          2852oC

Boiling Point                           3600oC

Solubility in Water                 0.086 gm/L

Crystal Structure                    Cubic

Refractive Index                     1.735 (nD)




MgO is used as a desiccant because of its moisture absorbency, in medicines for relief of heartburn and as a laxative. In industrial and laboratory use MgO is used as an insulator in industrial cables as a basic refractory material for ceramics and as a fire proofing material. MgO is used extensively in electrical heating as a component of “CalRod” style heating elements. MgO is pressed into optical materials and melted to form optical single crystals for infrared optics.


Where to Find Us:

Bayville Chemical
70 East Jefryn Boulevard
Suite G
Deer Park, NY 11729

Phone: 631 586-4309

What's New

New larger location

As of August 2014, we have moved to this new, larger, modern facility to better service your needs.


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