Triisopropanolamine (TIPA) 85%

(1) Cement Grinding Aid Industry 

IPA 85% is a key component in high-performance cement grinding aids, accounting for over 60% of the total amount used. Its mechanisms and advantages include:

• Grinding Aid Function: During the cement grinding process, TIPA chemical adsorbs onto the surface of cement particles, reducing friction and adhesion between particles, breaking up particle agglomeration, improving grinding efficiency, and reducing energy consumption (typically saving 10%-20% of energy), while also increasing cement output.
• Strength Enhancement: TIPA triisopropanolamine can react with free CaO, Al₂O₃, and other components in cement to form stable chelates, promoting the full hydration of cement and significantly improving both early (3-day) strength (an increase of 10%-15%) and later (28-day) strength (an increase of 5%-10%), particularly beneficial for high-strength cement production.
• Strong Compatibility: It blends well with other grinding aid components (such as ethylene glycol, diethanolamine, wood calcium, etc.) and can be adjusted according to different cement types (e.g., Portland cement, slag cement), making it widely applicable.

• Solubility: TIPA chemical has a very high water solubility. It contains 15% water itself and can mix with water in any ratio. It is also soluble in most organic solvents, such as ethanol, isopropanol, and ethylene glycol, but insoluble in non-polar solvents like petroleum ether and n-hexane. This characteristic makes it particularly convenient for use in aqueous systems.
• Boiling Point and Freezing Point: Due to the water content, its boiling point is significantly lower than that of the pure product (approximately 305°C), around 190-200°C (at normal pressure, gradually increasing as water evaporates). The freezing point is approximately -15°C to -10°C, lower than that of the pure product (around 4°C), making it less likely to freeze during winter storage, thus improving ease of use.
• Density and Viscosity: At 25°C, the density is about 1.005-1.015 g/cm³ (for the pure product, it is about 1.024 g/cm³). The viscosity is approximately 50-80 mPa·s (for the pure product, it is about 300 mPa·s). The lower viscosity makes it easier to handle during stirring, transportation, and formulation.
• Chemical Activity: As a tertiary amine, TIPA 85% exhibits typical amine chemical properties. Its molecule contains three hydroxyl groups (-OH) and one tertiary amine group (-N(CH(OH)CH₃)₂). The hydroxyl groups enhance its hydrophilicity and chelation ability with metals, while the amine group imparts basicity and catalytic activity. It can react with acids to form salts, undergo esterification and etherification with substances like ethylene oxide and organic acids, and at high temperatures, it can react with metal oxides to form chelates.
• Stability: This chemical is stable under normal temperature, in a sealed container, and protected from light. It is not prone to decomposition. However, it reacts vigorously with strong oxidizing agents and strong acids. Prolonged exposure to high temperatures (over 150°C) or sunlight may cause gradual oxidation and discoloration, but this has little impact on its main properties.

Storage Conditions: TIPA 85% should be stored in a cool, dry, and well-ventilated warehouse, with the temperature controlled between 5-30°C. Direct sunlight and high temperatures should be avoided. The storage area should be kept away from open flames, heat sources, and areas where strong oxidizers or acids are stored. Storage containers should be made of corrosion-resistant materials, such as HDPE plastic drums or metal drums, and should be tightly sealed to prevent moisture evaporation and contamination from impurities.

Transportation Requirements: During transportation, relevant hazardous material transport regulations should be followed (although 85% TIPA has relatively low danger, it should still be transported as a flammable liquid). Transport vehicles must be equipped with fire extinguishing equipment, and mixing or co-transporting with strong acids or oxidizers is strictly prohibited. Care should be taken when handling the product to avoid damage or leakage of containers. For winter transport, no special insulation measures are necessary, but long-term exposure to temperatures below -15°C should be avoided.

Shelf Life: When stored under the appropriate conditions and in sealed containers, the shelf life is 12 months. After opening, the product should be used as soon as possible, and any remaining portion should be resealed.