Cheapest by weight
$9.90 per kilogram
Price per unit, converted to US dollars
At Lab Alley, United States
- Pack
- 25 kilograms for $247.57
- Grade
- Laboratory grade · packs of 25 kilograms and up
Calcium Hydroxide suppliers and prices
- Formula
- CaH2O2
- CAS number
- 1305-62-0
- Molar mass
- 74.09 g/mol
Smallest amount to spend
$10.95 for 500 grams
Total for one pack, in the store's own currency
At Science Company, United States
- Works out at
- $21.90 per kilogram
- Grade
- Grade not stated · packs of 50 grams to 1 kilogram
13 offers from 3 stores · Prices checked October 28, 2026 · Prices run from $9.90 to $156 per kilogram, because a bigger pack costs less per kilogram.
Show prices per
Every price we found
16 prices, cheapest first
| Store | Grade and pack | Price | Link |
|---|---|---|---|
| Lab AlleyUnited States | Laboratory grade · packs of 25 kilograms and up25 kilograms for $247.57 | $9.90 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 1 to 25 kilograms22.7 kilograms for $231.64 | $10.21 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 25 kilograms and up25 kilograms for $315.42 | $12.62 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 25 kilograms and up25 kilograms for $315.42 | $12.62 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 1 to 25 kilograms22.7 kilograms for $292.12 | $12.88 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 1 to 25 kilograms22.7 kilograms for $292.12 | $12.88 per kilogram | View at store |
| Science CompanyUnited States | Grade not stated · packs of 50 grams to 1 kilogram500 grams for $10.95 | $21.90 per kilogram | View at store |
| GFS ChemicalsUnited States | ACS grade · packs of 1 to 25 kilograms2.5 kilograms for $150.83 | $60.33 per kilogram | View at store |
| GFS ChemicalsUnited States | Grade not stated · packs of 1 to 25 kilograms2 kilograms for $142.69 | $71.34 per kilogram | View at store |
| GFS ChemicalsUnited States | Grade not stated · packs of 50 grams to 1 kilogram500 grams for $53.40 | $107 per kilogram | View at store |
| Lab AlleyUnited States | ACS grade · packs of 1 to 25 kilograms2.5 kilograms for $272.78 | $109 per kilogram | View at store |
| GFS ChemicalsUnited States | ACS grade · packs of 50 grams to 1 kilogram500 grams for $59.75 | $120 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 50 grams to 1 kilogram500 grams for $72.27 | $145 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 50 grams to 1 kilogram500 grams for $72.27 | $145 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 50 grams to 1 kilogram500 grams for $72.27 | $145 per kilogram | View at store |
| Lab AlleyUnited States | ACS grade · packs of 50 grams to 1 kilogram500 grams for $78.11 | $156 per kilogram | View at store |
Making a solution?
Pick the strength and how much you need. We work out the grams of Calcium Hydroxide and what they cost at the cheapest store we track.
- You need
- 74.1 grams
- of Calcium Hydroxide, molar mass 74.09 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
21 companies make or distribute it, as reported to the US Environmental Protection Agency in 2020 and 2024.
- AirgasDistributor · Alaska, Michigan, Ohio and 1 more
- BWE ManchesterDistributor · New Hampshire
- LindeDistributor · Ohio, South Carolina
- Quadra ChemicalsDistributor · Texas
- Applied SpecialtiesMaker · Arizona, Arkansas, Louisiana and 2 more
- BASFMaker · New Jersey
- BPMaker · New Jersey
- ChemtradeMaker · Ohio, Virginia
- ClariantMaker · North Carolina
- Danchem TechnologiesMaker · Virginia
- ExxonmobilMaker · Kansas
- LanxessMaker · Connecticut, Pennsylvania
- Specialty MineralsMaker · Alabama, Maine, Washington and 1 more
- Syngenta Crop ProtectionMaker · Louisiana
- Airgas, NCNDistributor · California · last reported 2020
- BrenntagDistributor · Kentucky · last reported 2020
- ChempointDistributor · Washington · last reported 2020
- Itochu Chemicals AmericaDistributor · New York · last reported 2020
- BaerlocherMaker · Ohio · last reported 2020
- Pennzoil-Quaker StateMaker · Texas · last reported 2020
- PraxairMaker · California · last reported 2020
Your company? List it free and get bulk buyer requests.
Sold by
Chemical identity
- Formula
- CaH2O2
- Molar mass
- 74.09 g/mol
- CAS number
- 1305-62-0
- InChIKey
- AXCZMVOFGPJBDE-UHFFFAOYSA-L
- Official record
- PubChem 6093208
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.