Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Nitric Acid 20% Technical Grade
Technical · 20%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 7697-37-2
- Structure
Structure · PubChem - Grade
- Technical · 20%
- Assay specification
- 19.5 - 20.5%
- Answer summary
Sample specification reference for Nitric Acid 20% 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 |
|---|---|---|---|
| Assay (HNO3) | 19.5 - 20.5% | 20.11 % | — |
| Appearance | Colorless to a pale yellow | Passes test | — |
| Color (APHA) | <= 100 | 10 | — |
| Nitrite (NO2) | <=100 ppm | 0.44 ppm | — |
| Chloride (Cl) | <= 10 ppm | 0.021 ppm | — |
| Iron (Fe) | <= 10 ppm | 0.0071 ppm | — |
| Phosphate (PO4) | 0.0001 % max | 0.0000019 % | Molybdenum blue colorimetric |
| Substances reducing permanganate (as HNO2) | 0.00015 % max | 0.000021 % | Titrimetric, KMnO4 decolorization |
| Lead (Pb) | 0.0000022% max | 0.00000018 % | — |
| Residue after Ignition | 4.5 ppm max | 0.25 ppm | — |
| Sulfates (SO4) | 1.6 ppm max | 0.044 ppm | — |
| fluoride | 1.5 ppm max | 0.015 ppm | — |
| oxides of nitrogen | 31 ppm max | 0.29 ppm | — |
| oxidizable constituents as hno2 | 4.6 ppm max | 0.21 ppm | — |
| non-volatiles | 0.016 % max | 0.000040 % | — |
| Specific gravity (20 °C) | 1.110 - 1.120 | 1.116 | — |
| Composition | 20 % nitric acid 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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