Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Sodium Hydroxide 50% Solution ACS Grade
ACS Grade · 50%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 1310-73-2
- Structure
Structure · PubChem - Grade
- ACS Grade · 50%
- Assay specification
- 49.5-52.0%
- Answer summary
Sample specification reference for Sodium Hydroxide 50% Solution ACS Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-07-06 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (NaOH) | 49.5-52.0% | 50.1 % | — |
| Ammonium hydroxide precipitate | Max 0.01% | 0.0009% | — |
| Calcium (Ca) | Max 0.0025% | 0.000039% | — |
| Chloride (Cl) | Max 0.002% | 0.00073% | — |
| Color (APHA) | Max 20 | 4 | — |
| Heavy metals (as Ag) | Max 0.001% | 0.000019% | — |
| Iron (Fe) | Max 5 ppm (0.0005%) | 0.29 ppm | — |
| Magnesium (Mg) | Max 0.001% | 0.000018% | — |
| Mercury (Hg) | Max 0.05 ppm | 0.0007 ppm | — |
| Nickel (Ni) | Max 5 ppm (0.0005%) | 0.18 ppm | — |
| Nitrogen compounds (as N) | Max 5 ppm (0.0005%) | 0.39 ppm | — |
| Phosphate (PO4) | Max 5 ppm (0.0005%) | 0.11 ppm | — |
| Potassium (K) | Max 0.01% | 0.0014% | — |
| Sodium carbonate | 0.00-0.25 % (w/w) | 0.123 % | — |
| Sulfate (SO4) | Max 0.001% | 0.00027% | — |
| Specific gravity @ 20 C | 1.520 - 1.545 | 1.5339 | 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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