Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Sodium Bisulfite 40% ACS Grade
ACS Grade · 40%
Download PDF
Sample COA. Lot-specific COAs ship with each order.
Last reviewed 2026-05-20.
COA · Answer summary
Typical certificate of analysis for Sodium Bisulfite 40% ACS Grade. Lot-specific results ship with every order.
- Assay (computed)
- 40.00%
- Grade
- ACS Grade
Specifications
| Parameter | Specification | Typical Result | Test Method |
|---|---|---|---|
| Assay | 39.5 – 40.5 % | 40 % | Titration/Gravimetric |
| Appearance/Odor | — | — | Visual Inspection |
| Arsenic (As) | ≤ 0.01 ppm | 0.01 ppm | ICP-MS |
| Calcium (Ca) | ≤ 50 ppm | 20 ppm | ICP-MS |
| Chloride (Cl) | ≤ 50 ppm | 20 ppm | ICP |
| Insoluble Matter | ≤ 0.01 % | 0.01 % | Gravimetric |
| Iron | ≤ 10 ppm | 3 ppm | ICP |
| Magnesium (Mg) | ≤ 20 ppm | 10 ppm | ICP-MS |
| pH | 3.5 – 5 | 4 | pH Meter |
| Potassium (K) | ≤ 0.01 % | 0.01 % | ICP-MS |
| Specific Gravity @20°C | 1.31 – 1.37 g/mL | 1.33 g/mL | Hydrometer @ 25°C |
Generated . Published by Alliance Chemical from first-party canonical product data. Our authority is hands-on chemical handling, DOT/GHS-compliant shipping, and government-registered distribution — not bench chemistry. Values are representative of typical production lots and reflect the published specification range. Lot-specific COAs are provided with every shipment.