Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Potassium Hydroxide (KOH)
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Sample COA. Lot-specific COAs ship with each order.
Last reviewed 2026-05-20.
COA · Answer summary
Typical certificate of analysis for Potassium Hydroxide (KOH). Lot-specific results ship with every order.
- Assay (computed)
- 91.50%
Specifications
| Parameter | Specification | Typical Result | Test Method |
|---|---|---|---|
| Assay (Titration) | 90 – 91.5 % | 91.5 % | Titration |
| Appearance | — | — | Visual Inspection |
| Arsenic (As) | — | — | ICP-MS |
| Carbonate | ≤ 2 % | 0.4 % | Titration |
| Chloride | ≤ 1000 ppm | 210 ppm | Ion chromatography |
| Copper (Cu) | — | — | ICP-MS |
| Heavy Metals (as Pb) | ≤ 10 ppm | 3 ppm | ICP-MS (as Pb) |
| Iron | ≤ 5 ppm | 3 ppm | ICP |
| Lead (Pb) | — | — | ICP-MS |
| Mercury (Hg) | — | — | ICP-MS |
| Nickel (Ni) | — | — | ICP-MS |
| Nickel (Ni) | ≤ 4 ppm | 2 ppm | ICP-MS |
| Nitrogen | ≤ 20 ppm | 6 ppm | Kjeldahl / Chemiluminescence |
| Phosphate | ≤ 0.5 ppm | 0 ppm | Per specification |
| Sodium (Na) | — | 5900 ppm | ICP-MS |
| Sulfate | ≤ 13 ppm | 0 ppm | Ion chromatography |
Generated . Published by Alliance Chemical from first-party canonical product data. Our authority is hands-on chemical handling, DOT/GHS-compliant shipping, and government-registered distribution — not bench chemistry. Values are representative of typical production lots and reflect the published specification range. Lot-specific COAs are provided with every shipment.