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.
Need the Certificate of Analysis for your lot? Just ask.
Tell us the lot number from the container label and we will send the certificate over at no charge.