Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Isopropyl Alcohol 70% USP Grade
USP Grade · 70%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS番号
- 67-63-0
- 構造
構造・PubChem - グレード
- USP Grade · 70%
- Assay specification
- 68.0 - 72.0 % v/v
- Answer summary
Sample specification reference for Isopropyl Alcohol 70% USP Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-07-15 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (isopropyl alcohol, by volume) | 68.0 - 72.0 % v/v | 70.2 % | Distillation of 50.0 mL, then specific gravity of the distillate at 25° <841> |
| Acidity | not more than 1.0 mL of 0.020 N sodium hydroxide | 0.10 | Potentiometric titration to pH 8.5 with 0.020 N sodium hydroxide, 50 mL sample |
| Color (APHA) | Max 5, Pt-Co | 2 | — |
| Specific gravity @ 20 °C | 0.872 - 0.883 | 0.8770 | — |
| Water (by volume) | 28.0 - 32.0 % v/v | 29.8 % | — |
| Limit of nonvolatile residue | does not exceed 5 mg (0.01%) | Passes test | Evaporate 50 mL to dryness on a steam bath, dry at 105° for 1 hour |
| Identification (A: Infrared Absorption; B: GC retention time) | Meets requirements | Passes test | USP <197A> / GC-FID retention time vs. USP Reference Standard |
| Each other individual known impurity (ethyl ether, acetone, diisopropyl ether, 1-propanol, 2-butanol) | 0.072 % max | 0.00023 % | Gas chromatography |
| Methanol | 0.014 % max | 0.00012 % | Gas chromatography |
| Total organic impurities | 0.72 % max | 0.0067 % | Gas chromatography |
| Titrable Base | 0.000064 meq/g max | 0.000024 meq/g | — |
| Carbonyl compounds (as acetone) | 0.0013 % max | 0.00022 % | — |
| Composition | 70 % isopropyl alcohol by volume of finished solution (68.3 volumes isopropyl alcohol 99.9 % + 31.7 volumes deionized water) | Conforms | By formulation; batch weights (scale ticket) |
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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