Polypropylene Glycol (PPG), identified by CAS No. 25322-69-4, is a versatile linear polyether polyol fundamental to modern industrial chemistry. Characterized as a clear, colorless, and viscous liquid, PPG exhibits low volatility and a high degree of chemical stability across various temperatures. Its physical properties, such as viscosity and water solubility, are highly dependent on its molecular weight, making it customizable for diverse applications. Primarily, PPG serves as a critical intermediate in the production of polyurethanes, including flexible foams, adhesives, and sealants. It is also widely utilized as a high-performance lubricant, hydraulic fluid, and antifoaming agent. In the personal care and pharmaceutical sectors, it functions as an effective emollient and solvent. Regarding safety, PPG is generally considered to have low acute toxicity and is non-irritating to the skin and eyes under standard handling conditions. However, adherence to Safety Data Sheets (SDS) is essential to ensure proper containment and environmental protection.
* Ensures consistent performance due to its high purity and absence of additives.
* Features very low water content, making it ideal for moisture-sensitive applications.
* Offers broad versatility through a wide range of available molecular weights.
* Serves as a reliable building block for high-quality urethane polymers.
* Functions effectively as an emollient and moisturizer in cosmetic formulations.
* Provides excellent performance in lubricants, hydraulic fluids, and heat transfer systems.
* A clear, viscous liquid that simplifies handling and integration into various processes.
* Suitable for a wide array of applications including paints, coatings, and surfactants.
– Appearance: Clear Liquid
– Hydroxyl Value: 56 +/- 2 mg KOH/g
– Acid Value: Max 0.05 mg KOH/g
– Water Content: Max 0.05 % w/w
– pH (10% aqueous solution): 5.5 – 7.5
– Dynamic Viscosity @ 25°C: 350 – 550 mPa.s
– Density @ 25°C: 1.00 – 1.02 g/cm³
– Flash Point (Open Cup): 220 Min °C
– Color: Max 30 APHA
– Equivalent Weight: 1000
* **Polyurethane Production:** Serves as a primary building block (polyol) for manufacturing a wide range of polyurethane products, including flexible and rigid foams, elastomers, and coatings.
* **Surfactant and Detergent Synthesis:** Used as a key raw material for producing non-ionic surfactants and detergents, essential for industrial and household cleaning agents and emulsifiers.
* **Lubricant and Hydraulic Fluids:** Functions as a base fluid or component in synthetic lubricants, hydraulic fluids, and metalworking fluids due to its lubricating properties and thermal stability.
* **Cosmetics and Personal Care Products:** Incorporated into creams, lotions, and toiletries where it acts as an emollient, humectant, and solvent.
* **Chemical Intermediate:** Utilized as a versatile chemical intermediate in various organic synthesis reactions, leading to the production of esters, ethers, and other specialty chemicals.
* **Heat Transfer and Antifreeze Formulations:** Included in heat transfer fluids, coolants, and antifreeze, valued for its favorable thermal properties and low toxicity.
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