2-Ethylhexanol (CAS No. 26952-21-6)

2-Ethylhexanol, also known as 2-EH or isooctanol, is a versatile, branched-chain primary alcohol widely used in the chemical industry. With the chemical formula C₈H₁₈O, it appears as a colorless, oily liquid with a mild, characteristic odor. This high-purity alcohol serves as a key intermediate in the production of plasticizers, solvents, and other industrial compounds. Its low volatility, excellent solvency, and compatibility with various resins make it an essential building block for manufacturing processes requiring stable, efficient performance.

CAS Number: 26952-21-6 Molecular Weight: 130.23 g/mol Synonyms: 2-EH, Isooctyl alcohol, Octyl alcohol (branched)

Key Properties

2-Ethylhexanol offers reliable physical and chemical characteristics that ensure its effectiveness across diverse applications. Below is a summary of its primary specifications:

Property Value/Description
Appearance Clear, colorless liquid
Purity ≥99.0% (GC)
Density (20°C) 0.833 g/cm³
Boiling Point 184.1°C
Melting Point -76°C
Flash Point 78°C (closed cup)
Refractive Index (20°C) 1.430
Solubility in Water 1 g/L at 20°C (slightly soluble)
Viscosity (20°C) 7.2 mPa·s

These properties highlight 2-Ethylhexanol’s stability under standard industrial conditions, making it ideal for formulations that demand low-temperature fluidity and high flash point safety.

Applications and Uses

2-Ethylhexanol is a foundational chemical with broad utility in multiple sectors:

  • Plasticizers: Primarily used to produce di(2-ethylhexyl) phthalate (DEHP) and other phthalate esters, which enhance flexibility in PVC products like cables, flooring, and automotive components.
  • Solvents and Coatings: Acts as a coalescing agent in latex paints, varnishes, and inks, improving film formation and adhesion.
  • Lubricants and Defoamers: Incorporated into synthetic lubricants and as a raw material for defoaming agents in detergents and paper processing.
  • Pharmaceuticals and Agrochemicals: Serves as a solvent or intermediate in the synthesis of active ingredients for medicines and crop protection products.
  • Other Industrial Uses: Employed in the manufacture of adhesives, rubber, and fragrances due to its low toxicity and neutral odor profile.

Its eco-friendly profile, including biodegradability under aerobic conditions, positions 2-Ethylhexanol as a preferred choice for sustainable manufacturing.

Safety and Handling

2-Ethylhexanol is classified as a low-hazard substance when handled properly. It is mildly irritating to skin and eyes but poses no significant respiratory risks at typical exposure levels. Key safety guidelines include:

  • Storage: Keep in cool, dry, well-ventilated areas away from strong oxidizers. Use stainless steel or HDPE containers.
  • Handling: Wear protective gloves, eyewear, and clothing. Avoid ingestion and inhalation; use in fume hoods if needed.
  • Environmental Impact: Readily biodegradable; dispose of in accordance with local regulations to minimize aquatic release.
  • Regulatory Compliance: Complies with REACH, TSCA, and other global standards for chemical safety.

For detailed SDS (Safety Data Sheet), request from our team.

Frequently Asked Questions (FAQs)

What is 2-Ethylhexanol used for primarily?

2-Ethylhexanol is mainly used as a feedstock for producing plasticizers like DEHP, which are essential for flexible PVC applications in construction, automotive, and consumer goods.

Is 2-Ethylhexanol safe for industrial use?

Yes, it is considered low-toxicity with proper handling. It has a high flash point and is not classified as carcinogenic, though standard PPE is recommended to prevent skin or eye irritation.

What is the shelf life of 2-Ethylhexanol?

Under recommended storage conditions (cool, dark, and dry), 2-Ethylhexanol maintains stability for up to 24 months without significant degradation.

Can 2-Ethylhexanol be shipped internationally?

Absolutely. We offer global shipping in compliance with IATA, IMDG, and DOT regulations, with packaging options like drums, IBCs, and isotanks for volumes from 1 kg to bulk.

How does 2-Ethylhexanol compare to n-octanol?

Unlike straight-chain n-octanol, 2-Ethylhexanol’s branched structure provides better low-temperature performance and solvency, making it superior for plasticizer production and coatings.

Is 2-Ethylhexanol biodegradable?

Yes, it biodegrades rapidly (>70% in 28 days) under aerobic conditions, supporting its use in environmentally conscious formulations.

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