Demulsifier
Propylene glycol block polyether DEMET™ G-415
DEMET™ G-415 demulsifier is a propylene glycol block polyether utilized in oil field production. It efficiently neutralizes the effectiveness of natural emulsifiers and facilitates the coalescence of water droplets, thus accomplishing oil-water separation.
Appearance: Milky white liquid at 25°C
Hydroxyl value: 23 - 25 mg KOH/g
Moisture: ≤ 0.50 %
Description
What is Propylene Glycol Block Polyether?
Propylene glycol block polyether is a type of nonionic surfactant composed of polyoxyethylene and polyoxypropylene units arranged in a block structure. It is synthesized through the polymerization of propylene oxide and ethylene oxide, often initiated by compounds such as water, glycerol, sorbitol, sucrose, or amines. This versatile polymer exhibits unique physical and chemical properties, making it suitable for a wide range of applications.
Features of Propylene Glycol Block Polyether:
Propylene glycol block polyether has several notable characteristics:
Chemical Stability: It is stable under a wide range of pH conditions and exhibits good resistance to hydrolysis.
Low Toxicity: The compound is characterized by very low toxicity, which makes it suitable for use in personal care products, pharmaceuticals, and food processing.
Solubility: It can dissolve in water to varying degrees depending on its molecular structure and can also swell in aqueous systems.
Surface Activity: It possesses excellent surface-active properties, including emulsification, solubilization, defoaming, wetting, and antistatic capabilities.
Customizability: Its properties can be tailored by adjusting the molecular weight and the ratio of polyoxyethylene to polyoxypropylene units.
Applications of Propylene Glycol Block Polyether:
Propylene glycol block polyether finds applications in numerous industries:
Personal Care and Cosmetics: It is used as an emulsifier, thickener, and wetting agent to enhance the texture and stability of products such as shampoos, lotions, and creams.
Pharmaceuticals: It serves as a drug excipient, emulsifier, and solubilizer in various pharmaceutical formulations, including oral, nasal, and topical applications.
Industrial Cleaning: It is utilized as a low-foaming detergent and defoamer in industrial processes, such as papermaking and fermentation.
Coatings and Paints: It acts as a dispersant and emulsifier in latex paints and coatings, improving the dispersion of pigments and other components.
Metalworking: It functions as a coolant and lubricant in metal cutting and grinding operations, as well as a lubricant in rubber vulcanization.
Oil Industry: It is used as a demulsifier for crude oil and helps prevent scale formation in oil pipelines.
Textile Processing: It serves as a wetting agent, antistatic agent, and dyeing assistant in textile manufacturing.
Agriculture: It is employed as an emulsifier, dispersant, and defoamer in the formulation of pesticides and other agrochemicals.
Price of Propylene Glycol Block Polyether:
The price of propylene glycol block polyether can vary significantly depending on factors such as the specific grade, molecular weight, purity, and the quantity purchased. It is typically sold in bulk quantities, with prices ranging from a few dollars to tens of dollars per kilogram. For the most accurate and up-to-date pricing information, it is recommended to contact chemical suppliers or distributors directly.
Techspecs
Techspecs
| Test Item | Typical Data |
|---|---|
| Appearance | Milky white liquid at 25°C |
Hydroxyl value | 24.3 mg KOH/g |
Moisture | 0.37 % |
| pH | 4.9(10% in H2O) |
Flash point | 65.6 °C |
Specific Gravit | 1.012 |
| Solubility | |
| Water | Insoluble |
Packaging & Storage
1. Packed in metal drums, IBC tank, or made to order.
2. Long-term storage temperature should not exceed 45°C.
3. Handle & blending temperature should not exceed 65C.
4. Not dangerous chemicals, store in a dry & clean warehouse.
