The ester alcohol coalescent — known commercially as Texanol (CAS 25265-77-4) — is a key raw material in waterborne coatings, and buying it right matters: the grade, the COA and the supplier all affect your paint’s consistency. This purchasing guide covers the specification sheet, what the COA should show, packaging and storage, and the supplier checklist for the ester alcohol coalescent.
1. Understanding the Specification
| Parameter | Typical value | Why it matters |
|---|---|---|
| Purity (ester content) | High (typically >98%) | Performance and batch consistency |
| Acid value | Low (<1 mg KOH/g) | High acid can affect paint pH stability |
| Water content | Low (<0.1%) | Impacts coalescent efficiency and can-cleanliness |
| Appearance | Clear, nearly colorless liquid | Visual QC on arrival |
| Boiling point | ~254 °C | Confirms low-VOC profile |
2. What a Complete COA Should Contain
- Product name and CAS number (25265-77-4)
- Batch number and production date
- Purity (measured)
- Acid value (measured)
- Water content (measured)
- Color (Gardner or APHA)
- Test methods and quality manager signature
3. Packaging, Storage and Shelf Life
- Packaging: typically drums (200 kg), IBC totes or bulk; confirm what suits your plant.
- Storage: sealed, cool, dry; the product is a stable liquid but keep containers closed to avoid moisture pickup and contamination.
- Shelf life: typically 24 months when stored properly.
- Handling: low acute toxicity but combustible; keep away from ignition sources and follow the SDS.
4. The Texanol Trademark Question
“Texanol” is a registered trademark of Eastman Chemical Company for its specific ester alcohol product. The generic chemical is 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate (CAS 25265-77-4), produced by multiple manufacturers. When buying:
- Specify the generic name and CAS number, not just the brand name, so you compare like-for-like.
- Verify the supplier’s product is the same chemical identity and meets your purity requirements.
- Brand is a quality reference point, but the COA is the contract.
5. How to Verify Quality on Arrival
- Check container integrity and labels against the COA batch number.
- Visual check: clear, colorless to pale liquid, no water layer or haze.
- Check acid value and water content with simple lab methods, comparing to the COA.
- Run a small paint trial (or MFFT measurement) against your current batch.
- Keep a retained sample per batch.
6. Supplier Checklist
- Manufacturer vs trader — manufacturers control purity and consistency.
- Consistent COA with measured purity/acid/water on every batch.
- Steady supply and reasonable lead time for your production schedule.
- Export documentation (invoice, packing list, COA, MSDS, certificate of origin).
- Price stability and landed cost comparison on a per-kg basis.
7. FAQ
Is generic ester alcohol the same as Texanol?
The chemical is the same (2,2,4-trimethyl-1,3-pentanediol monoisobutyrate, CAS 25265-77-4), but “Texanol” is Eastman’s trademarked brand. Compare by COA (purity, acid value, water), not just by name.
What purity should I require?
Typically above 98% for paint-grade use; confirm with your formulation and the supplier’s COA.
Is the ester alcohol coalescent a dangerous good?
It is combustible but generally not classified as a dangerous good for transport in drum quantities; confirm the SDS and shipping classification with your forwarder.
Can I get a trial sample?
Yes. PolyblueChem offers trial samples so you can validate the product in your formulation before ordering bulk.
8. References and Further Reading
- Eastman technical literature on Texanol ester alcohol
- Paint formulation handbooks (coalescent selection, quality control)
This article is published for industrial and technical reference by PolyblueChem. Specifications are typical industry values; always verify against the supplier’s COA.
PolyblueChem supplies the ester alcohol coalescent (Texanol-type, CAS 25265-77-4) with full COA and MSDS. See our ester alcohol coalescent guide and coalescent selection guide. Contact us for samples and quotations.