2-Ethoxyethanol

2-Ethoxyethanol, also known as ethylene glycol monoethyl ether, is an organic compound with the formula C₄H₁₀O₂. It is a clear, colorless liquid with a sweet, ether-like odor. This compound is part of the glycol ether family and is used as a solvent in various industrial and commercial applications.

Chemical Structure and Properties

2-Ethoxyethanol is an ether and an alcohol, characterized by the presence of an ethoxy group (C₂H₅O-) attached to an ethylene glycol backbone. Its molecular structure can be represented as CH₃CH₂OCH₂CH₂OH. The compound has a molecular weight of 90.12 g/mol.

Physical Properties

• Boiling Point: 135°C (275°F)
• Melting Point: -70°C (-94°F)
• Density: 0.930 g/cm³
• Solubility: Miscible with water and most organic solvents

Chemical Properties

2-Ethoxyethanol is a polar solvent, which makes it effective in dissolving a wide range of substances. It is stable under normal conditions but can react with strong oxidizing agents.

Uses

2-Ethoxyethanol is primarily used as a solvent in the production of paints, varnishes, inks, and cleaning agents. It is valued for its ability to dissolve both hydrophilic and hydrophobic substances, making it versatile in various formulations.

In the electronics industry, it is used in the manufacture of semiconductors and printed circuit boards due to its excellent solvent properties.

Health and Safety

Exposure to 2-ethoxyethanol can occur through inhalation, ingestion, or skin contact. It is known to have toxic effects on the reproductive system and can cause hemolytic anemia. Due to these health risks, its use is regulated in many countries.

Safety Precautions

• Use in well-ventilated areas
• Wear appropriate personal protective equipment (PPE) such as gloves and goggles
• Follow occupational safety guidelines to minimize exposure

Environmental Impact

2-Ethoxyethanol is biodegradable, but its release into the environment should be controlled to prevent potential harm to aquatic life. It is important to follow proper disposal methods as outlined by environmental regulations.

Regulation

Due to its potential health risks, the use of 2-ethoxyethanol is restricted in many regions. The European Union has classified it as a reproductive toxicant, and its use is subject to strict regulations.

Also see

• Glycol ethers
• Solvent
• Toxicology
• Occupational safety and health