Cheapest by volume
$6.86 per litre
Price per unit, converted to US dollars
At Lab Alley, United States
- Pack
- 208 litres for $1,427.52
- Grade
- Laboratory grade · Solution 40% · packs of 25 litres and up
Potassium Hydroxide suppliers and prices
- Formula
- HKO
- CAS number
- 1310-58-3
- Molar mass
- 56.11 g/mol
Smallest amount to spend
9.90 GBP for 1 kilogram
Total for one pack, in the store's own currency
At The Soap Kitchen, United Kingdom
- Works out at
- $13.18 per kilogram
- Grade
- Grade not stated · packs of 1 to 25 kilograms
31 offers from 5 stores · Prices checked October 28, 2026 · Prices run from $6.86 to $404 per litre, because a bigger pack costs less per litre.
Show prices per
Liquids switch to the matching volume: microlitre, millilitre, litre, fluid ounce or US gallon.
Every price we found
36 prices, cheapest first
| Store | Grade and pack | Price | Link |
|---|---|---|---|
| Lab AlleyUnited States | Laboratory grade · Solution 40% · packs of 25 litres and up208 litres for $1,427.52 | $6.86 per litre | View at store |
| Lab AlleyUnited States | Laboratory grade · Solution 45% · packs of 25 litres and up208 litres for $1,545.84 | $7.42 per litre | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 25 kilograms and up25 kilograms for $235.47 | $9.42 per kilogram | View at store |
| The Soap KitchenUnited Kingdom | Grade not stated · packs of 1 to 25 kilograms1 kilogram for 9.90 GBP | $13.18 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 1 to 25 kilograms12.5 kilograms for $185.81 | $14.86 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · Solution 40% · packs of 1 to 25 litres20 litres for $304.62 | $15.23 per litre | View at store |
| Lab AlleyUnited States | Laboratory grade · Solution 45% · packs of 1 to 25 litres20 litres for $317.06 | $15.85 per litre | View at store |
| Lab AlleyUnited States | ACS grade · Solution 40% · packs of 25 litres and up208 litres for $6,233.98 | $29.94 per litre | View at store |
| Lab AlleyUnited States | ACS grade · Solution 45% · packs of 25 litres and up208 litres for $6,837.66 | $32.84 per litre | View at store |
| Science CompanyUnited States | Grade not stated · packs of 50 grams to 1 kilogram500 grams for $16.95 | $33.90 per kilogram | View at store |
| Lab AlleyUnited States | ACS grade · Solution 40% · packs of 1 to 25 litres20 litres for $978.52 | $48.93 per litre | View at store |
| Lab AlleyUnited States | ACS grade · packs of 1 to 25 kilograms22.7 kilograms for $1,175.24 | $51.82 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 1 to 25 kilograms22.7 kilograms for $1,175.24 | $51.82 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 1 to 25 kilograms22.7 kilograms for $1,175.24 | $51.82 per kilogram | View at store |
| Lab AlleyUnited States | ACS grade · packs of 25 kilograms and up25 kilograms for $1,316.08 | $52.64 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 25 kilograms and up25 kilograms for $1,316.08 | $52.64 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 25 kilograms and up25 kilograms for $1,316.08 | $52.64 per kilogram | View at store |
| Lab AlleyUnited States | ACS grade · Solution 45% · packs of 1 to 25 litres20 litres for $1,074.49 | $53.72 per litre | View at store |
| Lab DepotUnited States | Reagent grade · Solution 45% · packs of 1 to 25 litres20 litres for $1,451.13 | $72.56 per litre | View at store |
| GFS ChemicalsUnited States | Grade not stated · Solution · packs of 1 to 25 litres4 litres for $305.68 | $76.42 per litre | View at store |
| Lab DepotUnited States | ACS grade · packs of 1 to 25 kilograms12 kilograms for $974.23 | $81.19 per kilogram | View at store |
| Lab DepotUnited States | USP grade · packs of 1 to 25 kilograms12 kilograms for $1,156.34 | $96.36 per kilogram | View at store |
| Lab DepotUnited States | Food grade · packs of 1 to 25 kilograms12 kilograms for $1,168.70 | $97.39 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · Solution 40% · packs of 50 millilitres to 1 litre500 millilitres for $56.80 | $114 per litre | View at store |
| Lab AlleyUnited States | Laboratory grade · Solution 45% · packs of 50 millilitres to 1 litre500 millilitres for $57.12 | $114 per litre | View at store |
| Lab AlleyUnited States | Grade not stated · Solution · packs of 50 millilitres to 1 litre500 millilitres for $67.16 | $134 per litre | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 50 grams to 1 kilogram500 grams for $68.81 | $138 per kilogram | View at store |
| Lab AlleyUnited States | ACS grade · Solution 40% · packs of 50 millilitres to 1 litre500 millilitres for $78.43 | $157 per litre | View at store |
| Lab AlleyUnited States | ACS grade · Solution 45% · packs of 50 millilitres to 1 litre500 millilitres for $80.51 | $161 per litre | View at store |
| Lab AlleyUnited States | USP grade · packs of 50 grams to 1 kilogram500 grams for $85.32 | $171 per kilogram | View at store |
| Lab AlleyUnited States | ACS grade · packs of 50 grams to 1 kilogram454 grams for $94.99 | $209 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 50 grams to 1 kilogram454 grams for $94.99 | $209 per kilogram | View at store |
| Lab DepotUnited States | ACS grade · packs of 50 grams to 1 kilogram500 grams for $138.56 | $277 per kilogram | View at store |
| Lab DepotUnited States | Reagent grade · Solution 45% · packs of 50 millilitres to 1 litre500 millilitres for $142.05 | $284 per litre | View at store |
| Lab DepotUnited States | USP grade · packs of 50 grams to 1 kilogram500 grams for $168.44 | $337 per kilogram | View at store |
| Lab DepotUnited States | Food grade · packs of 50 grams to 1 kilogram500 grams for $202.07 | $404 per kilogram | View at store |
Making a solution?
Pick the strength and how much you need. We work out the grams of Potassium Hydroxide and what they cost at the cheapest store we track.
- You need
- 56.1 grams
- of Potassium Hydroxide, molar mass 56.11 g/mol
- That much costs
- $0.53
- $0.53 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
43 companies make or distribute it, as reported to the US Environmental Protection Agency in 2020 and 2024.
- Ambyth ChemicalDistributor · Washington
- BEI HawaiiDistributor · Hawaii
- BrenntagDistributor · California, Kentucky, Texas
- Catalynt SolutionsDistributor · Washington
- Chemical Distribution NetworkDistributor · Illinois
- KantoDistributor · Oregon
- M ChemicalDistributor · California
- OCIDistributor · Texas
- Old World IndustriesDistributor · Illinois
- PhibrochemDistributor · New Jersey
- Rierden ChemicalDistributor · Illinois
- Toyota Tsusho AmericaDistributor · Michigan, New York
- Tricon InternationalDistributor · Texas
- Univar SolutionsDistributor · Texas, Washington
- AlbemarleMaker · North Carolina
- Avantor Performance MaterialsMaker · Kentucky, New Jersey
- BASFMaker · New Jersey
- Bayer CropscienceMaker · Missouri
- ClariantMaker · North Carolina
- Erco WorldwideMaker · Georgia, Wisconsin
- HF SinclairMaker · New Mexico
- INEOSMaker · Ohio
- LanxessMaker · Pennsylvania
- Occidental ChemicalMaker · Louisiana
- OlinMaker · Missouri, Tennessee
- Oxiteno USAMaker · Texas
- Pasadena Refining SystemMaker · Texas
- Phillips 66Maker · Louisiana
- Global Chemical ResourcesDistributor · Ohio · last reported 2020
- PVS ChemicalsDistributor · Michigan · last reported 2020
- RedoxDistributor · California · last reported 2020
- Samirian ChemicalsDistributor · California · last reported 2020
- Special MaterialsDistributor · New York · last reported 2020
- Valudor ProductsDistributor · California · last reported 2020
- Advanced Micronutrient ProductsMaker · Michigan · last reported 2020
- Ashta ChemicalsMaker · Ohio · last reported 2020
- Dow ChemicalMaker · Michigan · last reported 2020
- EMD MilliporeMaker · Massachusetts, Ohio · last reported 2020
- HoneywellMaker · New Jersey · last reported 2020
- SimplotMaker · Idaho · last reported 2020
- Veolia New Orleans CentralMaker · Louisiana · last reported 2020
- Veolia Texas CentralMaker · Texas · last reported 2020
- Veolia Water North AmericaMaker · Pennsylvania · last reported 2020
Your company? List it free and get bulk buyer requests.
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Used for
Chemical identity
- Formula
- HKO
- Molar mass
- 56.11 g/mol
- CAS number
- 1310-58-3
- InChIKey
- KWYUFKZDYYNOTN-UHFFFAOYSA-M
- Official record
- PubChem 14797
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.