Cheapest by weight
$17.60 per kilogram
Price per unit, converted to US dollars
At Lab Alley, United States
- Pack
- 22.7 kilograms for $399.18
- Grade
- Laboratory grade · packs of 1 to 25 kilograms
Magnesium Oxide suppliers and prices
- Formula
- MgO
- CAS number
- 1309-48-4
- Molar mass
- 40.30 g/mol
Smallest amount to spend
$18.18 for 454 grams
Total for one pack, in the store's own currency
At Micron Metals, United States
- Works out at
- $40.08 per kilogram
- Grade
- Grade not stated · packs of 50 grams to 1 kilogram
20 offers from 3 stores · Prices checked October 28, 2026 · Prices run from $17.60 to $3.28 per kilogram, because a bigger pack costs less per kilogram.
Show prices per
Every price we found
23 prices, cheapest first
| Store | Grade and pack | Price | Link |
|---|---|---|---|
| Lab AlleyUnited States | Laboratory grade · packs of 1 to 25 kilograms22.7 kilograms for $399.18 | $17.60 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 25 kilograms and up25 kilograms for $440.02 | $17.60 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 25 kilograms and up25 kilograms for $453.01 | $18.12 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 25 kilograms and up25 kilograms for $453.01 | $18.12 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 1 to 25 kilograms22.7 kilograms for $416.29 | $18.36 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 1 to 25 kilograms22.7 kilograms for $416.29 | $18.36 per kilogram | View at store |
| Lab AlleyUnited States | Grade not stated · packs of 25 kilograms and up25 kilograms for $616.12 | $24.64 per kilogram | View at store |
| Lab AlleyUnited States | Grade not stated · packs of 1 to 25 kilograms22.7 kilograms for $604.44 | $26.65 per kilogram | View at store |
| Micron MetalsUnited States | Grade not stated · packs of 50 grams to 1 kilogram454 grams for $18.18 | $40.08 per kilogram | View at store |
| Lab AlleyUnited States | Reagent grade · packs of 25 kilograms and up25 kilograms for $1,934.67 | $77.39 per kilogram | View at store |
| Lab AlleyUnited States | Reagent grade · packs of 1 to 25 kilograms12.5 kilograms for $988.65 | $79.09 per kilogram | View at store |
| Lab DepotUnited States | USP grade · packs of 1 to 25 kilograms12 kilograms for $1,186.45 | $98.87 per kilogram | View at store |
| Lab AlleyUnited States | Grade not stated · packs of 50 grams to 1 kilogram500 grams for $50.47 | $101 per kilogram | View at store |
| Lab DepotUnited States | Food grade · packs of 1 to 25 kilograms12 kilograms for $1,704.20 | $142 per kilogram | View at store |
| Lab AlleyUnited States | Reagent grade · packs of 50 grams to 1 kilogram454 grams for $68.50 | $151 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 50 grams to 1 kilogram500 grams for $76.26 | $153 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 50 grams to 1 kilogram500 grams for $76.26 | $153 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 50 grams to 1 kilogram500 grams for $76.26 | $153 per kilogram | View at store |
| Lab DepotUnited States | USP grade · packs of 50 grams to 1 kilogram500 grams for $238.59 | $477 per kilogram | View at store |
| Lab DepotUnited States | Food grade · packs of 50 grams to 1 kilogram500 grams for $255.46 | $511 per kilogram | View at store |
| Lab DepotUnited States | ACS grade · packs of 1 to 25 kilograms2.5 kilograms for $2,608.37 | $1,043 per kilogram | View at store |
| Lab DepotUnited States | ACS grade · packs of 50 grams to 1 kilogram500 grams for $828.26 | $1,657 per kilogram | View at store |
| Lab DepotUnited States | ACS grade · packs of 10 to 50 grams25 grams for $81.99 | $3.28 per gram | View at store |
Making a solution?
Pick the strength and how much you need. We work out the grams of Magnesium Oxide and what they cost at the cheapest store we track.
- You need
- 40.3 grams
- of Magnesium Oxide, molar mass 40.30 g/mol
- That much costs
- $0.71
- $0.71 per litre of solution, at the lowest price per gram we found
Weigh it out, dissolve it in less water than you need, then top up to the full amount.
Bulk suppliers in the US
36 companies make or distribute it, as reported to the US Environmental Protection Agency in 2020 and 2024.
- Basstech InternationalDistributor · New Jersey
- ChemspecDistributor · Ohio
- HB ChemicalDistributor · Ohio
- Johnson MattheyDistributor · Georgia, Illinois
- LG Chem AmericaDistributor · Georgia
- Quadra ChemicalsDistributor · Texas
- Wego Chemical & MineralDistributor · New York
- Advanced Micronutrient ProductsMaker · Michigan
- AlbemarleMaker · North Carolina, Texas
- AOCMaker · Tennessee
- BASFMaker · New Jersey
- Cameron ChemicalMaker · Virginia
- ClariantMaker · Kentucky, North Carolina
- Everris NAMaker · Missouri
- Haifa North AmericaMaker · Florida
- HallstarMaker · Illinois
- HoneywellMaker · Illinois
- New WaverlyMaker · Texas
- Southern IonicsMaker · Alabama, Louisiana
- W R GraceMaker · Maryland
- BrenntagDistributor · New Jersey · last reported 2020
- Itochu Chemicals AmericaDistributor · Michigan · last reported 2020
- Univar SolutionsDistributor · Texas · last reported 2020
- Valudor ProductsDistributor · California · last reported 2020
- Air ProductsMaker · Pennsylvania · last reported 2020
- Blanchard RefiningMaker · Texas · last reported 2020
- Brady MccaslandMaker · Illinois · last reported 2020
- Haldor TopsoeMaker · Texas · last reported 2020
- HydriteMaker · Wisconsin · last reported 2020
- Jost ChemicalMaker · Missouri · last reported 2020
- Omni Oxide Indiana OxideMaker · Indiana · last reported 2020
- Perstorp PolyolsMaker · Ohio · last reported 2020
- Porocel IndustriesMaker · Arkansas · last reported 2020
- ThatcherMaker · Montana · last reported 2020
- UOP MobileMaker · Alabama · last reported 2020
- Western Refining SouthwestMaker · New Mexico · last reported 2020
Your company? List it free and get bulk buyer requests.
Sold by
Chemical identity
- Formula
- MgO
- Molar mass
- 40.30 g/mol
- CAS number
- 1309-48-4
- InChIKey
- CPLXHLVBOLITMK-UHFFFAOYSA-N
- Official record
- PubChem 14792
How we compare: each store's own price, turned into US dollars at European Central Bank rates of 2026-10-29, then divided by the pack size. Shipping and tax are not included.