ChemicalSuppliers

Magnesium Sulfate Heptahydrate suppliers and prices

Formula
H14MgO11S
CAS number
10034-99-8
Molar mass
246.48 g/mol

Found at 1 store we track

$7.84 per kilogram

Price per unit, converted to US dollars

At Essential Depot, United States

Pack
4.08 kilograms for $31.99
Grade
Grade not stated · packs of 1 to 25 kilograms
View at Essential Depot

Smallest amount to spend

$10.30 for 907 grams

Total for one pack, in the store's own currency

At Essential Depot, United States

Works out at
$11.35 per kilogram
Grade
Grade not stated · packs of 50 grams to 1 kilogram
View at Essential Depot

2 offers from 1 store · Prices checked October 28, 2026 · Prices run from $7.84 to $11.35 per kilogram, because a bigger pack costs less per kilogram.

Only one store we read sells Magnesium Sulfate Heptahydrate so far. Sell it, or know a store that does? Tell us.

Show prices per

Every price we found

2 prices, cheapest first

StoreGrade and packPriceLink
Essential DepotUnited StatesLowest price Grade not stated · packs of 1 to 25 kilograms4.08 kilograms for $31.99 $7.84 per kilogram View at store
Essential DepotUnited States Grade not stated · packs of 50 grams to 1 kilogram907 grams for $10.30 $11.35 per kilogram View at store

Making a solution?

Pick the strength and how much you need. We work out the grams of Magnesium Sulfate Heptahydrate and what they cost at the cheapest store we track.

You need
246 grams
of Magnesium Sulfate Heptahydrate, molar mass 246.48 g/mol
That much costs
$1.93
$1.93 per litre of solution, at the lowest price per gram we found
Cheapest way to buy it
$10.30
1 pack of 907 grams at Essential Depot
View at Essential Depot

Weigh it out, dissolve it in less water than you need, then top up to the full amount.

Bulk suppliers in the US

5 companies make or distribute it, as reported to the US Environmental Protection Agency in 2024.

Your company? List it free and get bulk buyer requests.

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Chemical identity

Formula
H14MgO11S
Molar mass
246.48 g/mol
CAS number
10034-99-8
InChIKey
WRUGWIBCXHJTDG-UHFFFAOYSA-L
Official record
PubChem 24843

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.