In industrial production and practical applications, propylene glycol ethers are currently the most widely used and consumed ether solvents. General-purpose ethers, represented by diethyl ether and tetrahydrofuran, also have large-scale applications.
Comparison of Application Ranges by Category
Propylene Glycol Ethers (Most Widely Used)
Propylene glycol ethers are a class of alcohol ether compounds synthesized from propylene oxide, covering more than ten fields including industry, daily chemicals, and pharmaceuticals:
Core Applications: In the coatings and inks industry, they are used as solvents and dispersants to adjust formulation viscosity and improve coating performance; in the electronics industry, they are used as circuit board cleaners and flux components to ensure production cleanliness; in the cleaning and daily chemical industry, they can efficiently dissolve grease and are gentle on the skin, and are widely added to household and industrial cleaners; in the pharmaceutical industry, they can be used for the extraction and purification of active drug ingredients, and can also be used as drug carriers to improve stability; they are also used in pesticides, leather, cosmetics, automotive brake fluid, and aircraft fuel anti-icing agents, among other fields.
Advantages: Strong dissolving power, low toxicity, moderate volatility, suitable for various application scenarios, making it the most versatile category of ethers.
Diethyl Ether (Classic General-Purpose Ether with a Long History of Application)
Diethyl ether is the most representative traditional ether with a long history of application and continues to play a role in multiple fields:
Core Applications: The most commonly used extraction solvent and organic reaction medium in laboratories, capable of extracting fat-soluble components from natural products; industrially used in the production of rayon, guncotton, and nitrocellulose, and also as an extractant for oils and alkaloids; in the gunpowder industry, used to manufacture smokeless gunpowder; historically the most widely used general anesthetic globally, but gradually being replaced in clinical practice.