Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Hydrochloric Acid 31% Technical Grade
Technical Grade · 31%
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Sample COA. Lot-specific COAs ship with each order.
Last reviewed 2026-05-20.
COA · Answer summary
Typical certificate of analysis for Hydrochloric Acid 31% Technical Grade. Lot-specific results ship with every order.
- Assay (computed)
- 31.00%
- Grade
- Technical Grade
Specifications
| Parameter | Specification | Typical Result | Test Method |
|---|---|---|---|
| Assay (Titration) | 30.5 – 31.5 % | 31 % | Titration |
| Color (APHA/Hazen) | ≤ 10 APHA | 4 APHA | Spectrophotometry |
| Heavy Metals (as Pb) | ≤ 1 ppm | 0 ppm | ICP-MS (as Pb) |
| Iron (Fe) | ≤ 1 ppm | 0 ppm | ICP-MS |
| Residue on Evaporation | ≤ 50 ppm | 10 ppm | Evaporation |
| Specific Gravity @20°C | 1.15 – 1.16 g/mL | 1.149 g/mL | Hydrometer @ 25°C |
| Sulfate (SO4) | ≤ 16.76 ppm | 0.84 ppm | ICP |
| Sulfite (SO3) | ≤ 58.65 ppm | 0.42 ppm | ICP |
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.