Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Tert Butyl Acetate (TBA) Technical Grade
Technical
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 540-88-5
- Structure
Structure · PubChem - Grade
- Technical
- Assay specification
- 99.5 wt. %, min.
- Answer summary
Sample specification reference for Tert Butyl Acetate (TBA) 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 / GC purity (tert-butyl acetate) | 99.5 wt. %, min. | 99.8 wt. % | Internal Method |
| 2,4,4-three Methyl 1 Pentene | Less than 0.2% | Passes test | — |
| Appearance | Colorless and transparent | Passes test | — |
| pH | 6 ~ 7 | Passes test | — |
| Evaporation residue | No more than 0.002% | 0.0005% | — |
| Relative Density (20 ºC) | 0.860 ~ 0.866 g/cm3 (Water=1) | Passes test | — |
| Tertiary Butyl Alcohol | Less than 0.2% | Passes test | — |
| Water | 0.05 wt. %, max. | 0.015 wt. % | ASTM E-203 |
| Acidity (as acetic acid) | 0.01 wt. %, max. | 0.003 wt. % | ASTM D-1613 |
| Distillation range @ 760 mm Hg | 95.0 - 98.5 °C | 96.75 °C | ASTM D1078 |
| Refractive index @ 20 °C | 1.384 - 1.388 | 1.386 | ASTM D1218 / Abbe refractometer |
| Flash point (closed cup) | Report (typical -9 °C / 16 °F) | Passes test | ASTM D56 (Tag closed cup) |
| Odour | Characteristic ester odour; free of foreign odour | Passes test | ASTM D1296 / organoleptic |
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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