Cheapest by volume
$6.55 per litre
Price per unit, converted to US dollars
At Lab Alley, United States
- Pack
- 208 litres for $1,363.96
- Grade
- Reagent grade · Solution · packs of 25 litres and up
Cheapest by volume
$6.55 per litre
Price per unit, converted to US dollars
At Lab Alley, United States
Smallest amount to spend
$32.95 for 500 grams
Total for one pack, in the store's own currency
At Science Company, United States
4 offers from 2 stores · Prices checked October 28, 2026 · Prices run from $6.55 to $110 per litre, because a bigger pack costs less per litre.
Liquids switch to the matching volume: microlitre, millilitre, litre, fluid ounce or US gallon.
4 prices, cheapest first
| Store | Grade and pack | Price | Link |
|---|---|---|---|
| Lab AlleyUnited States | Reagent grade · Solution · packs of 25 litres and up208 litres for $1,363.96 | $6.55 per litre | View at store |
| Lab AlleyUnited States | Reagent grade · Solution · packs of 1 to 25 litres20 litres for $243.14 | $12.16 per litre | View at store |
| Science CompanyUnited States | Grade not stated · packs of 50 grams to 1 kilogram500 grams for $32.95 | $65.90 per kilogram | View at store |
| Lab AlleyUnited States | Reagent grade · Solution · packs of 50 millilitres to 1 litre500 millilitres for $55.00 | $110 per litre | View at store |
Pick the strength and how much you need. We work out the grams of Zinc Sulfate 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.
22 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.