2-Propoxyethanol (CAS No. 2807-30-9)
1. Substance Identification
Chemical Name: 2-Propoxyethanol
Synonyms: Ethylene glycol monopropyl ether; 1-Propoxy-2-ethanol; PGPE
CAS No.: 2807-30-9
EC No.: 220-548-6
Molecular Formula: C₅H₁₂O₂
Molecular Weight: 104.15 g/mol
Structure: CH₃CH₂CH₂-O-CH₂CH₂OH
2. Physical and Chemical Properties
Appearance: Colorless liquid with a mild ether-like odor.
Boiling Point: 149–152 °C
Melting Point: -80 °C
Density: 0.923 g/cm³ at 20 °C
Vapor Pressure: 0.5 mmHg at 20 °C
Solubility:Miscible with water and most organic solvents (e.g., ethanol, acetone).
Refractive Index: 1.407–1.411 at 20 °C
Flash Point: 49 °C (closed cup)
Autoignition Temperature: 245 °C
3. Chemical Stability and Reactivity
Stability: Stable under normal conditions.
Incompatibilities: Strong oxidizing agents, strong acids, and bases.
Decomposition: May emit toxic fumes (carbon monoxide, carbon dioxide) upon combustion.
4. Safety and Handling
GHS Classification:
Hazard Statements:H302: Harmful if swallowed.H312: Harmful in contact with skin.H319: Causes serious eye irritation.H336: May cause drowsiness or dizziness.
Precautionary Statements:P261: Avoid breathing dust/fume/gas/mist.P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
Personal Protection:Gloves (nitrile), goggles, and ventilation. Avoid skin/eye contact.
5. Applications
Industrial Uses:Solvent in coatings, inks, and cleaning agents.Intermediate in organic synthesis.
Consumer Products: Found in paints, varnishes, and adhesives.
6. Storage and Transport
Storage: Keep in a cool, well-ventilated area away from ignition sources. Store in original container tightly closed.
Transport: Classified as flammable liquid (UN No. 1993). Follow local regulations for flammable substances.
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