Hydroxyethyl Ethylenediamine
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Category:
Amine Derivatives
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Product Profile
1. Chemical Structure and Properties
Molecular Formula: C₄H₁₂N₂O
Structural Formula: HOCH₂CH₂–NH–CH₂–CH₂–NH₂ — Hydroxyethyl Ethylenediamine is a diamine with one hydroxyethyl group attached to one of the nitrogen atoms.
Physical Properties:
Appearance: Colorless to pale yellow viscous liquid
Boiling Point: ~250–255°C
Density: ~1.06 g/cm³ at 20°C
Solubility: Miscible with water, alcohols, and many polar organic solvents
Chemical Properties:
Acts as a weakly basic diamine with both hydroxyl and amino functional groups
Exhibits nucleophilic and buffering properties
Stable under normal conditions but reacts with strong oxidizers
Flash Point: ~105°C (closed cup) — combustible but moderately volatile
2. Industrial Applications
Gas Treatment:
Used as an absorbent in gas scrubbing to remove acidic gases like CO₂ and H₂S
Corrosion Inhibition:
Added to cooling water and boiler systems to prevent corrosion
Chemical Intermediate:
Key raw material for synthesis of surfactants, emulsifiers, and chelating agents
Textile and Leather Processing:
Acts as a buffering agent and pH adjuster in dyeing and finishing processes
Agriculture:
Used in pesticide formulations and as a pH regulator
3. Safety and Toxicology
Health Hazards:
May cause mild irritation to skin, eyes, and respiratory tract
Prolonged exposure can result in dermatitis
Fire & Explosion:
Combustible liquid; avoid open flames and high temperatures
Protective Measures:
Use nitrile gloves, chemical-resistant goggles, and ensure proper ventilation
In case of contact, rinse thoroughly with water and seek medical attention if necessary
4. Environmental and Regulatory Considerations
Environmental Impact:
Biodegradable under aerobic conditions
Moderate aquatic toxicity; avoid release into waterways
Regulatory Compliance:
Registered under EU REACH
Listed in US TSCA inventory
Transport Classification: UN 2922, Class 8 (Corrosive Substances), Packing Group III
5. Case Studies and Application Insights
Gas Purification:
Effectively used in industrial gas treatment plants to reduce CO₂ and H₂S levels, improving process efficiency
Corrosion Control:
Extends lifespan of cooling and boiler systems in manufacturing plants
Comparative Analysis:
Compared to similar amines, Hydroxyethyl Ethylenediamine offers better solubility and dual-functionality due to its hydroxyl and amino groups, making it suitable for a variety of industrial applications