TEA vs TIPA vs DEIPA — Cement Grinding Aid Amines Compared
The three alkanolamines most used to formulate cement grinding aids — triethanolamine (TEA), triisopropanolamine (TIPA) and diethanolisopropanolamine (DEIPA) — behave very differently in grinding efficiency and strength development. This page compares them on the parameters cement plants actually decide on.
Quick comparison
| Property | TEA | TIPA | DEIPA |
|---|---|---|---|
| Full name | Triethanolamine | Triisopropanolamine | Diethanol-isopropanolamine |
| CAS No. | 102-71-6 | 122-20-3 | 6712-98-7 |
| Molecular weight | 149.2 | 191.3 | 163.2 |
| Grinding efficiency* | Baseline / low | ~18.6% (highest) | ~9.7% |
| Early-strength (3-7d) | Strong | Moderate | Strong |
| Late-strength (28d) | Moderate | Strong | Strong |
| Typical role | Early strength enhancer | Grinding + late strength | All-round replacement |
*Relative grinding-efficiency figures from published lab studies at ~4100 cm²/g Blaine (TIPA 18.6% > DEG 12.6% > DEIPA 9.7% > EG 8.3%). Actual results depend on clinker, mill type and dosage. Table 1 — indicative data; request our TDS for grade-specific values.
Which one should you use?
- ▸ Need maximum mill throughput + 28-day strength? → TIPA-based grinding aid (highest grinding efficiency).
- ▸ Need early strength (3-7 day)? → TEA or DEIPA.
- ▸ Want one amine that balances grinding + early + late strength / to replace TEA+TIPA? → DEIPA is the modern all-round choice.
- ▸ Best cost-performance in practice? → a blend; studies show ~75% TIPA + 25% TEA is a common synergistic optimum. We formulate to your clinker.
Our cement grinding aids are formulated from these amines (TEA / TIPA / DEIPA) and supplied as ready-to-dose liquid/powder or as intermediates. Chloride-free, dosage-optimized for OPC / PPC / slag cement.
Request TDS, Sample & Quote →FAQ
Can DEIPA replace TEA and TIPA?
Yes. DEIPA is increasingly used as a single all-round amine because it delivers both grinding efficiency and balanced early/late strength, simplifying the formulation versus a TEA+TIPA blend.
Which amine gives the highest grinding efficiency?
TIPA, in published trials the highest of the common amines (≈18.6% at ~4100 Blaine), which is why it is the backbone of throughput-focused grinding aids.
Are these grinding aids chloride-free?
Yes — alkanolamine-based grinding aids are chloride-free, safe for reinforced concrete and below the typical ≤0.06% cement chloride limit.
What dosage is typical?
Grinding aids are dosed at roughly 0.02-0.08% of cement (≈150-500 g/t); the exact dose is optimized per clinker and target Blaine.
Do you supply the amines or the finished grinding aid?
Both — finished ready-to-dose grinding aids and the intermediates (TIPA, TEA, DEIPA 85%). Contact us for TDS and pricing.