Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Sodium Bisulfite 25% ACS Grade
ACS · 25%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 7631-90-5
- Structure
Structure · PubChem - Grade
- ACS · 25%
- Assay specification
- 24.0 - 26.0 %
- Answer summary
Sample specification reference for Sodium Bisulfite 25% ACS Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-07-22.
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Chloride (Cl) | 0.005 % max | 0.00031 % | — |
| Heavy metals (as Pb) | 0.00025 % max | 0.000063 % | — |
| Insoluble matter | 0.0013 % max | 0.00025 % | — |
| Iron (Fe) | 0.0005 % max | 0.000075 % | — |
| Assay | 24.0 - 26.0 % | 25.0 % | — |
| Composition | 25 % sodium hydrogen sulfite 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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