Solventler

Solventler, or solvents, are liquids used to dissolve substances, reduce viscosity, facilitate chemical reactions, or enable extraction and purification. They are essential in chemistry, industry, and everyday products. Solvents are broadly divided into water and organic solvents. Water is the universal solvent for many ionic or polar solutes, while organic solvents provide solubility for nonpolar or moderately polar compounds.

Organic solvents are categorized by polarity and chemical class, including hydrocarbons such as hexane and heptane; halogenated solvents such as dichloromethane and chloroform; alcohols such as methanol and ethanol; ketones such as acetone and methyl ethyl ketone; ethers such as diethyl ether and THF; and esters such as ethyl acetate. Their physical properties, including boiling point, polarity, dielectric constant, and miscibility, determine their suitability for specific tasks. Some solvents mix with water (miscible), others are immiscible.

Applications cover chemical synthesis, extraction, formulation of paints, coatings, and pharmaceuticals, as well as cleaning, degreasing, and analytical chemistry.

Safety and environmental aspects are important: many solvents are flammable, toxic, or irritants, and some are persistent or hazardous to air and aquatic life. They can emit volatile organic compounds (VOCs). Safe use includes adequate ventilation, protective equipment, proper storage, and proper waste handling and disposal. Regulatory frameworks such as REACH, OSHA standards, and local regulations govern their production, transport, and use.