Cheapest by weight
$12.57 per kilogram
Price per unit, converted to US dollars
At Lab Alley, United States
- Pack
- 25 kilograms for $314.33
- Grade
- USP grade · packs of 25 kilograms and up
Magnesium Hydroxide suppliers and prices
- Formula
- H2MgO2
- CAS number
- 1309-42-8
- Molar mass
- 58.32 g/mol
Smallest amount to spend
$73.98 for 500 grams
Total for one pack, in the store's own currency
At Lab Alley, United States
- Works out at
- $148 per kilogram
- Grade
- USP grade · packs of 50 grams to 1 kilogram
8 offers from 2 stores · Prices checked October 28, 2026 · Prices run from $12.57 to $240 per kilogram, because a bigger pack costs less per kilogram.
Show prices per
Every price we found
11 prices, cheapest first
| Store | Grade and pack | Price | Link |
|---|---|---|---|
| Lab AlleyUnited States | USP grade · packs of 25 kilograms and up25 kilograms for $314.33 | $12.57 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 25 kilograms and up25 kilograms for $314.33 | $12.57 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 1 to 25 kilograms22.7 kilograms for $292.21 | $12.88 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 1 to 25 kilograms22.7 kilograms for $292.21 | $12.88 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 25 kilograms and up25 kilograms for $424.35 | $16.97 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 1 to 25 kilograms22.7 kilograms for $394.48 | $17.39 per kilogram | View at store |
| Lab DepotUnited States | USP grade · packs of 1 to 25 kilograms12 kilograms for $1,034.60 | $86.22 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 50 grams to 1 kilogram500 grams for $73.98 | $148 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 50 grams to 1 kilogram500 grams for $73.98 | $148 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 50 grams to 1 kilogram500 grams for $73.98 | $148 per kilogram | View at store |
| Lab DepotUnited States | USP grade · packs of 50 grams to 1 kilogram500 grams for $119.99 | $240 per kilogram | View at store |
Making a solution?
Pick the strength and how much you need. We work out the grams of Magnesium Hydroxide and what they cost at the cheapest store we track.
- You need
- 58.3 grams
- of Magnesium Hydroxide, molar mass 58.32 g/mol
- That much costs
- $0.73
- $0.73 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
17 companies make or distribute it, as reported to the US Environmental Protection Agency in 2020 and 2024.
- AvientDistributor · Ohio
- BASFMaker · New Jersey, Ohio, Pennsylvania
- HallstarMaker · Illinois
- ICLMaker · Missouri
- International Trade SolutionsMaker · North Dakota
- Omni Oxide Indiana OxideMaker · Indiana
- Tetra TechnologiesMaker · Arkansas
- ChemspecDistributor · Ohio · last reported 2020
- MitsuiDistributor · California, New York, Texas · last reported 2020
- AlbemarleMaker · North Carolina · last reported 2020
- Dallas Group of AmericaMaker · Indiana · last reported 2020
- Dow ChemicalMaker · Michigan · last reported 2020
- Johnson MattheyMaker · Georgia · last reported 2020
- Nouryon Pulp & Performance ChemicalsMaker · Georgia · last reported 2020
- Premier MagnesiaMaker · Pennsylvania · last reported 2020
- SolvayMaker · Georgia · last reported 2020
- Techno-UMG AmericaMaker · Ohio · last reported 2020
Your company? List it free and get bulk buyer requests.
Chemical identity
- Formula
- H2MgO2
- Molar mass
- 58.32 g/mol
- CAS number
- 1309-42-8
- InChIKey
- VTHJTEIRLNZDEV-UHFFFAOYSA-L
- Official record
- PubChem 73981
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.