Food & beverage
Acidity regulator and anticaking agent.
Ingredients / Mineral salts / Magnesium Oxide
Mineral salts
Magnesium Oxide (E 530)
Magnesium oxide for U.S. manufacturers, from vetted producers. FCC / USP grade on request. Download the sample spec sheet, then send us your grade and quantity.
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Key facts
| CAS No. | 1309-48-4 |
|---|---|
| E-number (EU) | E 530 |
| Synonyms | Magnesium oxide |
| Chemical formula | MgO |
| Molecular weight | 40,31 |
| Description | A very bulky, white powder known as light magnesium oxide or a relative dense, white powder known as heavy magnesium oxide. 5 g of light magnesium oxide occupy a volume of at least 33 ml, while 5 g of heavy magnesium oxide occupy a volume of not more than 20 ml |
| Solubility | Practically insoluble in water. Insoluble in ethanol |
| Grades | EU Reg. 231/2012 (E 530) sample spec · FCC / USP available on request for U.S. food/pharma use |
| Origin | Confirmed in every offer; stated per lot on the COA |
| Storage, shelf life, packaging | Per the producer's specification, on request |
What magnesium oxide is
Chemical name: Magnesium oxide. Formula MgO, molecular weight 40,31. A very bulky, white powder known as light magnesium oxide or a relative dense, white powder known as heavy magnesium oxide. 5 g of light magnesium oxide occupy a volume of at least 33 ml, while 5 g of heavy magnesium oxide occupy a volume of not more than 20 ml. Practically insoluble in water. Insoluble in ethanol. (Source: EU Regulation 231/2012, E 530.)
Applications by industry
Agriculture & animal nutrition
Mineral source in feed.
Chemical & industrial
Alkaline inorganic for chemical processes.
Sample specification
Values from EU Regulation 231/2012 (E 530), consolidated text of 18.08.2026. Actual values depend on the producer; the producer's specification and the COA for your lot are available on request.
| Assay | Content not less than 98,0 % on the ignited basis |
|---|---|
| Loss on ignition | Not more than 5,0 % (ca. 800 °C to constant weight) |
| Calcium oxide | Not more than 1,5 % |
| Arsenic | Not more than 3 mg/kg |
| Lead | Not more than 2 mg/kg |
Download the full spec sheet (PDF)
Documents and sourcing
Droplet promise. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Data sheet, SDS and COA on request. Every delivery ships with a COA linked to the delivered lot.
Questions buyers ask
What is magnesium oxide used for?
Typical uses by industry. Food & beverage: Acidity regulator and anticaking agent. Agriculture & animal nutrition: Mineral source in feed. Chemical & industrial: Alkaline inorganic for chemical processes. Suitability for your product and market is confirmed with the producer's specification.
Which grades can McBoeck supply?
Food grade to EU Regulation 231/2012 (E 530). FCC / USP grade is available on request for U.S. food and pharma use. Particle size and other grade details follow the producer's specification, on request.
Which documents come with magnesium oxide?
Every delivery ships with a COA linked to the delivered lot. Origin confirmed in every offer. Sample lot record on request, from the producer. SDS, allergen and other statements on request.
What does the sample spec sheet show?
Limits for assay, loss on ignition, calcium oxide, arsenic and lead, taken from EU Regulation 231/2012. Actual values depend on the producer; the producer's specification and the lot COA are available on request.
How do I get a quote?
Send us the grade, quantity and delivery location through the quote form or at [email protected]. We work with vetted producers and give you access to U.S.- and EU-stocked material through our partner network.
Related mineral salts
Need magnesium oxide?
Send us the grade, quantity and delivery location. Email [email protected] or call +1 (713) 766-6811.