Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Ammonium Hydroxide 20% Technical Grade
Technical · 20%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 1336-21-6
- Structure
Structure · PubChem - Grade
- Technical · 20%
- Assay specification
- 19.7 - 20.3 %
- Answer summary
Sample specification reference for Ammonium Hydroxide 20% Technical Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (NH3) | 19.7 - 20.3 % | 20.03 % | Titration |
| Limit of nonvolatile residue | 0.034% | 0.0041 % | — |
| Iron (Fe) | Max 0.7 ppm | 0.08 ppm | 1,10-phenanthroline colorimetry / AAS |
| Heavy metals | 0.0009% max | 0.000061 % | Heavy metals (as Pb), sulfide colour comparison against lead standard on the evaporation residue |
| Readily oxidizable substances | the pink color does not completely disappear within 10 minutes | Passes test | 4.0 mL sample + 6 mL water, slight excess 2 N sulfuric acid, 0.10 mL 0.1 N potassium permanganate |
| Composition | 20 % ammonium hydroxide in deionized water, by weight | Conforms | By formulation; confirmed by specific gravity |
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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