Ethoxy Propanol

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Ethoxy Propanol, also known as Propylene Glycol Monoethyl Ether (PnP), is a clear, colorless, low-viscosity solvent with a mild ether-like odor. It belongs to the family of glycol ethers and is miscible with water and most organic solvents. Ethoxy Propanol is widely valued for its excellent solvency, moderate evaporation rate, and compatibility with both polar and non-polar systems. It is extensively used in coatings, inks, cleaners, and chemical synthesis applications due to its balance of performance and safety.

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Category: Solvents(paint) Tags: Adhesive formulations, Cleaning formulations, Degreaser, Ethoxy Propanol, Paints & Coatings, Propylene glycol monoethyl ether

Description

Table of Contents

Ethoxy Propanol Uses

Primary Uses

Paints, Coatings & Inks

Acts as a coalescing agent in water-based paints and coatings to ensure film formation and durability.
Used as a solvent for resins, dyes, and pigments in architectural, automotive, and industrial coatings.
Improves flow, leveling, and gloss in latex paints and varnishes.
Helps reduce surface tension in inks and improves drying time and print quality.

Cleaners & Degreasers

Employed as an active solvent in household, institutional, and industrial cleaners due to excellent grease-cutting ability.
Used in glass and hard-surface cleaners for streak-free drying and effective removal of oily residues.
Compatible with surfactants and alkaline builders in formulation of degreasers and heavy-duty detergents.

Adhesives & Sealants

Functions as a solvent or plasticizer in waterborne adhesives and sealants, aiding in uniform film formation and drying.
Enhances wetting and open time in formulation, improving application performance.
Compatible with polyurethane, acrylic, and phenolic adhesive systems.

Textiles & Leather Processing

Used as a solvent carrier in textile printing pastes and dyeing formulations.
Helps control evaporation and improve uniformity in leather finishing processes.

Electronics & Semiconductor Industry

Used in precision cleaning of electronic components due to low residue and controlled evaporation.
Employed in solvent blends for photoresist and printed circuit board cleaning.

Chemical Intermediate

Serves as a building block in the synthesis of surfactants, solvents, and agrochemical formulations.
Used in manufacturing esters, plasticizers, and other specialty chemicals.

Secondary Uses

Automotive Applications

Added to fuel system cleaners and carburetor cleaners for its solubilizing and cleaning properties.
Used in vehicle polish and detailing formulations for improved spreading and film integrity.

Printing Industry

Included in printing inks for improved pigment dispersion, drying control, and substrate adhesion.
Helps maintain print sharpness and uniformity in high-speed printing processes.

Cosmetics & Personal Care

Occasionally used as a solvent or carrier in formulations like hair sprays, perfumes, and lotions (non-irritating at low concentrations).
Contributes to volatility and spreadability of fragrances or actives.

Agrochemical Formulations

Used as a solvent or carrier in pesticide and herbicide formulations for better active ingredient dispersion and penetration.

KEY PRODUCT FEATURES

1. Basic Identification Attributes

Chemical Name (IUPAC): 1-Ethoxy-2-propanol
Common/Trade Name: Ethoxy Propanol, Propylene Glycol Monoethyl Ether (PnP)
CAS Number: 1569-02-4
HS Code: 2909.49.00
Molecular Formula: C₅H₁₂O₂
Synonyms:
- PnP
- Ethyl Propylene Glycol Ether
- 2-Propanol, 1-ethoxy-
- EPh (in some industrial contexts)

2. Physical & Chemical Properties

Appearance: Clear, colorless liquid
Odor: Mild, ether-like
Boiling Point: ~135°C
Melting Point: −90°C
Flash Point: ~48–52°C (closed cup)
Density (20°C): ~0.90 g/cm³
Solubility: Completely miscible with water, alcohols, and many organic solvents
Evaporation Rate: Moderate (slower than acetone, faster than glycols)
Viscosity: Low (~2.0 cP at 20°C)
Vapor Pressure: ~3.5 mmHg at 20°C
Refractive Index: 1.405–1.410

3. Safety & Hazard Attributes

Hazard Class (GHS):
- Flammable Liquid, Category 3
- Eye Irritation, Category 2A
Toxicity: Low to moderate; inhalation and prolonged skin contact may cause irritation
Exposure Limits:
- ACGIH TLV (TWA): Not specifically established
- Use in well-ventilated areas to limit vapor buildup

4. Storage & Handling Attributes

Storage Conditions: Store in cool, dry, well-ventilated area; away from heat, sparks, and open flames
Container Type: HDPE drums, metal drums, or IBCs
Shelf Life: Typically 12–24 months in unopened containers
Handling Precautions: Ground and bond containers when transferring; use flame-proof equipment where applicable
Incompatible Materials: Strong oxidizing agents, acids, alkalis

5. Regulatory & Compliance Attributes

Listed on major international chemical inventories (TSCA, EINECS, REACH)
Acceptable in food-contact coatings under specific regulatory limits (check regional guidelines)
Not classified as a hazardous air pollutant (HAP) under U.S. Clean Air Act
May contribute to VOC content in regulated formulations (regulated under CARB, SCAQMD, etc.)

6. Environmental & Health Impact

Ecotoxicity: Moderate — avoid direct discharge to surface water
Persistence: Biodegradable under aerobic conditions
Bioaccumulation: Low potential
Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic

SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

PPE Required:

Chemical-resistant gloves (nitrile, neoprene)
Splash goggles or safety glasses
Flame-resistant lab coat or apron
Vapor respirator if working in poorly ventilated areas

Handling Guidelines:

Avoid breathing vapor or mist
Prevent static discharge — ensure proper grounding
Use explosion-proof ventilation or local exhaust if handling large volumes

Storage Measures:

Store in tightly closed containers
Keep away from ignition sources and direct sunlight
Use nitrogen blanketing for long-term bulk storage if necessary

Hygiene Practices:

Wash hands after handling
Avoid eating, drinking, or smoking while using
Clean equipment and surfaces after use

First Aid Measures

Inhalation: Move to fresh air; seek medical attention if symptoms persist
Skin Contact: Wash thoroughly with soap and water; remove contaminated clothing
Eye Contact: Rinse cautiously with water for 15 minutes; consult a physician if irritation continues
Ingestion: Do not induce vomiting; rinse mouth and seek immediate medical attention

Firefighting Measures

Fire Hazards: Flammable liquid and vapor
Extinguishing Media: Dry chemical, CO₂, alcohol-resistant foam, or water spray
Special Precautions: Use full protective gear and self-contained breathing apparatus (SCBA)
Decomposition Products: May produce carbon monoxide, carbon dioxide, and other irritating vapors when burned