Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Soda Ash Technical Grade
Technical
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 497-19-8
- Structure
Structure · PubChem - Grade
- Technical
- Answer summary
Sample specification reference for Soda Ash 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 |
|---|---|---|---|
| Sodium Chloride (NaCl) | 1,000 ppm Maximum | 158 ppm | — |
| Iron (Fe) | 20 ppm Maximum | 5.5 ppm | — |
| Loss on ignition, 27 - 300 C | max. 0.4 % | 0.13 % | — |
| Organic matter (as C) | 0.01 % Max | 0.0033 % | — |
| Screen analysis, U.S. Standard sieves (dense soda ash) | On 30 mesh (>600 micron): 8.0% Maximum cumulative; On 100 mesh (>150 micron): 85.0% Minimum cumulative; Through 200 mesh (<75 micron): 3.0% Maximum through | Passes test | — |
| Silica (SiO2) | 0.03 % Max | 0.0076 % | — |
| Sodium Carbonate (as Na2CO3) | 99.2% Minimum | 99.78 % | — |
| Sodium Oxide (Na2O) | 58.0% Minimum | 58.4 % | — |
| Matter insoluble in water | Max. 0.15% (% Mass, dry basis) | 0.024 % | ASTM E359 |
| Sodium Sulfate (Na2SO4) | 2,000 ppm Maximum | 293 ppm | — |
| Volatiles | 0.80% Maximum | 0.041 % | — |
| pH, 1% w/w aqueous solution @ 25 C | 11.2 - 11.6 | 11.4 | Potentiometric, glass electrode (ASTM E70) |
| +20screen | 0.4 max | 0.14 | — |
| +40screen | 50 max | 30.37 | — |
| bd lb/ft3 | 56 lb/ft3 min | 60.03 | — |
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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