Cheapest by weight
$7.78 per kilogram
Price per unit, converted to US dollars
At Lab Alley, United States
- Pack
- 25 kilograms for $194.61
- Grade
- Laboratory grade · packs of 25 kilograms and up
Cheapest by weight
$7.78 per kilogram
Price per unit, converted to US dollars
At Lab Alley, United States
Smallest amount to spend
$12.95 for 500 grams
Total for one pack, in the store's own currency
At Science Company, United States
25 offers from 5 stores · Prices checked October 28, 2026 · Prices run from $7.78 to $272 per kilogram, because a bigger pack costs less per kilogram.
Liquids switch to the matching volume: microlitre, millilitre, litre, fluid ounce or US gallon.
27 prices, cheapest first
| Store | Grade and pack | Price | Link |
|---|---|---|---|
| Lab AlleyUnited States | Laboratory grade · packs of 25 kilograms and up25 kilograms for $194.61 | $7.78 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 25 kilograms and up25 kilograms for $196.63 | $7.87 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 25 kilograms and up25 kilograms for $201.38 | $8.06 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 1 to 25 kilograms22.7 kilograms for $183.59 | $8.09 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 1 to 25 kilograms22.7 kilograms for $183.59 | $8.09 per kilogram | View at store |
| Lab AlleyUnited States | USP grade · packs of 1 to 25 kilograms22.7 kilograms for $185.68 | $8.19 per kilogram | View at store |
| Science CompanyUnited States | Grade not stated · packs of 1 to 25 kilograms2.5 kilograms for $29.95 | $11.98 per kilogram | View at store |
| Lab AlleyUnited States | ACS grade · packs of 25 kilograms and up25 kilograms for $430.15 | $17.21 per kilogram | View at store |
| Lab AlleyUnited States | Grade not stated · Solution 0.9% · packs of 1 to 25 litres4 litres for $75.40 | $18.85 per litre | View at store |
| Lab AlleyUnited States | ACS grade · packs of 1 to 25 kilograms12.5 kilograms for $317.86 | $25.43 per kilogram | View at store |
| Science CompanyUnited States | Grade not stated · packs of 50 grams to 1 kilogram500 grams for $12.95 | $25.90 per kilogram | View at store |
| Lab DepotUnited States | USP grade · packs of 1 to 25 kilograms12 kilograms for $533.16 | $44.43 per kilogram | View at store |
| Lab DepotUnited States | EP grade · packs of 1 to 25 kilograms12 kilograms for $533.16 | $44.43 per kilogram | View at store |
| Lab DepotUnited States | Food grade · packs of 1 to 25 kilograms12 kilograms for $579.05 | $48.25 per kilogram | View at store |
| Lab DepotUnited States | Molecular biology grade · packs of 1 to 25 kilograms12 kilograms for $622.35 | $51.86 per kilogram | View at store |
| Wards ScienceUnited States | Grade not stated · packs of 50 grams to 1 kilogram500 grams for $29.65 | $59.30 per kilogram | View at store |
| Boreal ScienceCanada | Grade not stated · packs of 50 grams to 1 kilogram500 grams for 46.85 CAD | $66.95 per kilogram | View at store |
| Lab AlleyUnited States | Grade not stated · Solution 0.9% · packs of 50 millilitres to 1 litre500 millilitres for $49.48 | $98.96 per litre | View at store |
| Lab AlleyUnited States | USP grade · packs of 50 grams to 1 kilogram500 grams for $70.90 | $142 per kilogram | View at store |
| Lab AlleyUnited States | Food grade · packs of 50 grams to 1 kilogram500 grams for $70.90 | $142 per kilogram | View at store |
| Lab AlleyUnited States | Laboratory grade · packs of 50 grams to 1 kilogram500 grams for $70.90 | $142 per kilogram | View at store |
| Lab AlleyUnited States | ACS grade · packs of 50 grams to 1 kilogram500 grams for $86.37 | $173 per kilogram | View at store |
| Lab AlleyUnited States | Grade not stated · Solution 10% · packs of 50 millilitres to 1 litre500 millilitres for $95.43 | $191 per litre | View at store |
| Lab DepotUnited States | USP grade · packs of 50 grams to 1 kilogram500 grams for $113.00 | $226 per kilogram | View at store |
| Lab DepotUnited States | EP grade · packs of 50 grams to 1 kilogram500 grams for $113.00 | $226 per kilogram | View at store |
| Lab DepotUnited States | Food grade · packs of 50 grams to 1 kilogram500 grams for $125.16 | $250 per kilogram | View at store |
| Lab DepotUnited States | Molecular biology grade · packs of 50 grams to 1 kilogram500 grams for $135.99 | $272 per kilogram | View at store |
Pick the strength and how much you need. We work out the grams of Sodium Chloride and what they cost at the cheapest store we track.
Weigh it out, dissolve it in less water than you need, then top up to the full amount.
46 companies make or distribute it, as reported to the US Environmental Protection Agency in 2020 and 2024.
Your company? List it free and get bulk buyer requests.
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.