Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Potassium Hydroxide 45% Solution ACS Grade
ACS Reagent · 45%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 1310-58-3
- Structure
Structure · PubChem - Grade
- ACS Reagent · 45%
- Assay specification
- 44.0% - 46.0 % (w/w)
- Answer summary
Sample specification reference for Potassium Hydroxide 45% Solution ACS Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-08-27.
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (KOH) | 44.0% - 46.0 % (w/w) | 45.0 % | — |
| Appearance | Colorless liquid | Passes test | — |
| Chloride (Cl) | Max 0.005% | 0.0008% | — |
| Other Heavy Metals (as Ag) | Max 0.0005% | 0.00005% | — |
| Iron (Fe) | Max 0.0002% | 0.00002% | — |
| Phosphate (PO4) | Max 0.0002% | 0.00002% | — |
| Potassium Carbonate (K2CO3) | Max 0.2% | 0.05 % | — |
| Sodium (Na) | Max 0.25% | 0.08 % | — |
| Sulfate (SO4) | Max 0.001% | 0.00015% | — |
| Nitrogen compounds (as N) | Max 0.0005% | 0.00005% | Nessler colorimetric after Devarda reduction |
| Calcium (Ca) | Max 0.002% | 0.0002% | ICP-OES |
| Magnesium (Mg) | Max 0.001% | 0.00005% | ICP-OES |
| Nickel (Ni) | Max 0.0005% | 0.00001% | ICP-OES / AAS |
| Specific gravity @ 20 °C | 1.452 - 1.462 | 1.457 | ASTM D891 / hydrometer |
Specification limits and source-record results are reproduced from the current product reference used by the TDS. This sample is not an issued certificate and does not identify a tested lot. Contact Alliance Chemical with the product and lot number for lot-specific documentation.
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