Potassium Carbonate suppliers and prices

Formula: CK₂O₃
CAS number: 584-08-7
Molar mass: 138.21 g/mol

Cheapest by weight

$18.72 per kilogram

Price per unit, converted to US dollars

At Lab Alley, United States

Pack: 25 kilograms for $468.03
Grade: Food grade · packs of 25 kilograms and up

View at Lab Alley

Smallest amount to spend

$50.47 for 500 grams

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

At Lab Alley, United States

Works out at: $101 per kilogram
Grade: Laboratory grade · packs of 50 grams to 1 kilogram

View at Lab Alley

15 offers from 2 stores · Prices checked October 28, 2026 · Prices run from $18.72 to $358 per kilogram, because a bigger pack costs less per kilogram.

Buying in bulk?

Typical bulk price$1.26 per kilogram$1,256 per tonne

The cheapest store price we found, $18.72 per kilogram, is 15 times that.

Price by year, 2002 to 2025, US dollars per kilogram, not adjusted for inflation

In 2025, $1.32 per kilogram: 5.0 times the price in 2002. Lowest $0.27 in 2002, highest $1.65 in 2023.

$2$0 $1.32

20022025

Every year

Year	Per kilogram	Tonnes imported
2025	$1.32	28,363
2024	$1.29	40,230
2023	$1.65	19,689
2022	$1.26	53,514
2021	$0.80	49,507
2020	$0.75	50,803
2019	$0.71	51,691
2018	$0.69	44,912
2017	$0.66	39,466
2016	$0.68	38,350
2015	$0.71	34,734
2014	$0.76	38,970
2013	$0.84	34,292
2012	$0.81	25,359
2011	$0.87	22,837
2010	$0.84	22,025
2009	$1.16	17,500
2008	$0.95	22,689
2007	$0.62	37,829
2006	$0.61	22,350
2005	$0.43	28,245
2004	$0.36	38,348
2003	$0.32	35,512
2002	$0.27	38,253

Average paid for EU imports from outside the EU, September 2025 to August 2026, and each year since 2002. Our calculation from Eurostat data. Not a quote. All bulk prices

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Every price we found

15 prices, cheapest first

Store	Grade and pack	Price	Link
Lab AlleyUnited StatesLowest price	Food grade · packs of 25 kilograms and up25 kilograms for $468.03	$18.72 per kilogram	View at store
Lab AlleyUnited States	Food grade · packs of 1 to 25 kilograms22.7 kilograms for $431.64	$19.03 per kilogram	View at store
Lab AlleyUnited States	Laboratory grade · packs of 25 kilograms and up25 kilograms for $600.83	$24.03 per kilogram	View at store
Lab AlleyUnited States	Laboratory grade · packs of 1 to 25 kilograms22.7 kilograms for $582.81	$25.70 per kilogram	View at store
Lab DepotUnited States	Food grade · packs of 1 to 25 kilograms12 kilograms for $1,134.50	$94.54 per kilogram	View at store
Lab DepotUnited States	USP grade · packs of 1 to 25 kilograms12 kilograms for $1,154.70	$96.23 per kilogram	View at store
Lab DepotUnited States	ACS grade · packs of 1 to 25 kilograms12 kilograms for $1,191.97	$99.33 per kilogram	View at store
Lab AlleyUnited States	Laboratory grade · packs of 50 grams to 1 kilogram500 grams for $50.47	$101 per kilogram	View at store
Lab AlleyUnited States	ACS grade · packs of 25 kilograms and up25 kilograms for $2,892.73	$116 per kilogram	View at store
Lab AlleyUnited States	ACS grade · packs of 1 to 25 kilograms12.5 kilograms for $1,764.26	$141 per kilogram	View at store
Lab AlleyUnited States	Food grade · packs of 50 grams to 1 kilogram500 grams for $77.94	$156 per kilogram	View at store
Lab AlleyUnited States	ACS grade · packs of 50 grams to 1 kilogram500 grams for $128.58	$257 per kilogram	View at store
Lab DepotUnited States	USP grade · packs of 50 grams to 1 kilogram500 grams for $133.48	$267 per kilogram	View at store
Lab DepotUnited States	Food grade · packs of 50 grams to 1 kilogram500 grams for $135.99	$272 per kilogram	View at store
Lab DepotUnited States	ACS grade · packs of 50 grams to 1 kilogram500 grams for $178.98	$358 per kilogram	View at store

Making a solution?

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

Strength

Amount of solution

You need: 138 grams; of Potassium Carbonate, molar mass 138.21 g/mol
That much costs: $2.59; $2.59 per litre of solution, at the lowest price per gram we found
Cheapest way to buy it: $50.47; 1 pack of 500 grams at Lab Alley; View at Lab Alley

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

Bulk suppliers in the US

25 companies make or distribute it, as reported to the US Environmental Protection Agency in 2020 and 2024.

Catalynt SolutionsDistributor · Washington
Chemical Distribution NetworkDistributor · Illinois
Esseco USADistributor · New Jersey
HydriteDistributor · California, Wisconsin
OCIDistributor · Texas
Samirian ChemicalsDistributor · California
Wego Chemical & MineralDistributor · New York
Armand ProductsMaker · Alabama
BASFMaker · New Jersey
Delamin Nitriding Salts, U.SMaker · Tennessee
Dow ChemicalMaker · Michigan
HawkinsMaker · Illinois, Minnesota
INEOSMaker · Ohio
Nachurs Alpine SolutionsMaker · Iowa, Louisiana
ShellMaker · California
SolvayMaker · Georgia
SQM North AmericaMaker · Georgia
BEI HawaiiDistributor · Hawaii · last reported 2020
BrenntagDistributor · Kentucky, Oregon · last reported 2020
Rierden ChemicalDistributor · Illinois · last reported 2020
Tricon InternationalDistributor · Texas · last reported 2020
TrinternationalDistributor · Washington · last reported 2020
Valudor ProductsDistributor · California · last reported 2020
Ashta ChemicalsMaker · Ohio · last reported 2020
EvonikMaker · Alabama · last reported 2020

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Chemical identity

Formula: CK₂O₃
Molar mass: 138.21 g/mol
CAS number: 584-08-7
InChIKey: BWHMMNNQKKPAPP-UHFFFAOYSA-L
Official record: PubChem 11430

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.