Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Methyl Ethyl Ketone (MEK) ACS Grade
ACS Grade
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 78-93-3
- Structure
Structure · PubChem - Grade
- ACS Grade
- Assay specification
- 99.0 % min
- Answer summary
Sample specification reference for Methyl Ethyl Ketone (MEK) ACS 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 (C4H8O) | 99.0 % min | 99.7 % | Gas chromatography (GC) |
| Titrable acid | 0.0005 meq/g max | 0.00011 meq/g | — |
| Color (APHA) | 15 max | 7 | — |
| Residue after evaporation | 0.0025 % max | 0.00047 % | — |
| Water (H2O) | 0.20 % max | 0.033 % | — |
| Substances darkened by sulfuric acid | Passes test | Passes test | ACS monograph colorimetric test |
| Identification (Infrared spectrum) | Conforms to structure | Passes test | FTIR vs. reference spectrum |
| Specific gravity @ 20/20 C | 0.804 - 0.807 | 0.8054 | ASTM D4052 |
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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