Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Sodium Hydroxide Flakes
Technical · 97%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS番号
- 1310-73-2
- 構造
構造・PubChem - グレード
- Technical · 97%
- Assay specification
- 98% Min
- Answer summary
Sample specification reference for Sodium Hydroxide Flakes. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-06-18 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Purity (dry basis), as NaOH | 98% Min | 99.6% | ASTM E291 |
| Appearance | White | Passes test | — |
| Sodium chloride (NaCl) | 100 Max ppm | 46 ppm | ASTM E291 |
| Heavy metals (as Pb) | ≤ 0.001% | 0.000072% | — |
| Iron (Fe) | 15 ppm max | 0.70 ppm | — |
| Nickel (Ni) | 5.0 Max ppm | 1.1 ppm | HACH 10220 |
| Sodium carbonate (Na2CO3) | 0.2 Max % | 0.13 % | ASTM E291 |
| Water (H2O) | 1.0 % Max | 0.4 % | Karl Fischer titration |
| Sodium sulfate (Na2SO4) | 0.05 % Max | 0.0008 % | Turbidimetric (BaSO4) |
| aluminum | 40 ppm max | 1.5 ppm | — |
| calcium | 45 ppm max | 0.7 ppm | — |
| copper | 1.5 ppm max | 0.13 ppm | — |
| excess sodium hydroxide | 98 % min | 99.0 % | — |
| magnesium | 30 ppm max | 0.30 ppm | — |
| manganese | 0.75 ppm max | 0.050 ppm | — |
| naclo3 | 40 ppm max | 13 ppm | — |
| retained 16mesh | 25 % max | 15.5 % | — |
| retained 4mesh | 95 % max | 82.6 % | — |
| silicon | 350 ppm max | 13 ppm | — |
| strontium | 15 ppm max | 0.33 ppm | — |
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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