Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Isopropyl Alcohol 50% USP Grade
USP · 50%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 67-63-0
- Structure
Structure · PubChem - Grade
- USP · 50%
- Assay specification
- 48-52 %
- Answer summary
Sample specification reference for Isopropyl Alcohol 50% USP Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-06-18 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (isopropyl alcohol) | 48-52 % | 50.1 % | Specific gravity |
| Appearance | Colorless liquid | Passes test | — |
| Color (APHA) | NMT 5 | 1 | APHA Pt-Co, ASTM D1209 |
| 1-Propanol | ≤ 0.0505 % | 0.00063 % | — |
| 2-Butanol | ≤ 0.0505 % | 0.00021 % | — |
| Acidity | NMT 0.35 mL of 0.020 N sodium hydroxide | 0.07 | Titration with 0.020 N sodium hydroxide, 50 mL sample |
| Benzene | ≤ 1.01 ppm | 0.043 ppm | — |
| Diisopropyl ether | ≤ 0.0505 % | 0.0029 % | — |
| Ethyl ether | ≤ 0.0505 % | 0.00052 % | — |
| Total volatile impurities | ≤ 0.505 % | 0.0058 % | — |
| Each other individual known impurity (ethyl ether, acetone, diisopropyl ether, 1-propanol, 2-butanol) | 0.048 % max | 0.00013 % | Gas chromatography |
| Methanol | 0.0097 % max | 0.000058 % | Gas chromatography |
| Total organic impurities | 0.48 % max | 0.0047 % | Gas chromatography |
| Titrable Base | 0.000043 meq/g max | 0.000009 meq/g | — |
| Carbonyl compounds (as acetone) | 0.00087 % max | 0.00018 % | — |
| Limit of nonvolatile residue | does not exceed 2.5 mg (0.005%) | Passes test | Evaporate 50 mL on a steam bath to dryness, heat at 105° for 1 hour |
| Composition | 50 % isopropyl alcohol / 50 % deionized water, by volume | 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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