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Send EmailEthylene Glycol Mono Butyl Ether, Butoxyethanol, Butyl Glycol, Butyl Glycol Ether, Butyl Oxitol, EGBE, BG, 111-76-2
BUTYL GLYCOL (2-BUTOXYETHANOL)
PRODUCT IDENTIFIER INFORMATION
| Parameter | Information |
|---|---|
| Product Name | Butyl Glycol |
| Chemical Name (IUPAC) | 2-Butoxyethanol |
| CAS Number | 111-76-2 |
| EC Number (EINECS) | 203-905-0 |
| Molecular Formula | C₆H₁₄O₂ |
| Molecular Weight | 118.18 g/mol |
CHEMICAL STRUCTURE
H H H H H
| | | | |
H₃C - CH₂ - CH₂ - CH₂ - O - CH₂ - CH₂ - OH
| | | | |
H H H H H
Butyl Group Ethylene Glycol Chain
2-Butoxyethanol (Butyl Glycol) Molecular Structure
Molecular Formula: C₆H₁₄O₂
SMILES: CCCCOCCO
InChI: 1S/C6H14O2/c1-2-3-4-8-6-5-7/h7H,2-6H2,1H3
SECTION 1: CHEMICAL IDENTITY AND DESCRIPTION
| Parameter | Information |
|---|---|
| Chemical Name (IUPAC) | 2-Butoxyethanol |
| Systematic Name | Ethylene Glycol Mono Butyl Ether; 2-n-Butoxyethanol |
| Synonyms (English) | Butyl Glycol, Butyl Glycol Ether, EGBE, BG, Butoxyethanol, Butyl Cellosolve, Butyl Oxitol, Dowanol EB, Eastman EB Solvent, Jeffersol EB, Ektasolve EB, 2-BE, EGMBE, Butyl Monoether Glycol, Glycol Butyl Ether, Butyl 2-hydroxyethyl ether, Butoxyethoxy Ethanol, Solvent, Butyglcol |
| CAS Number | 111-76-2 |
| EC Number (EINECS) | 203-905-0 |
| Molecular Formula | C₆H₁₄O₂ (CH₃(CH₂)₃OCH₂CH₂OH) |
| Molecular Weight | 118.18 g/mol |
| Chemical Class | Primary alcohol and ether (Glycol ether) |
| Chemical Role | Protic solvent; surfactant (reduces surface tension of water) |
| Physical State (20°C) | Colorless, clear liquid |
| Odor | Ether-like, mild, sweetish |
| Taste | Sweet taste (not for consumption) |
SECTION 2: PHYSICAL AND CHEMICAL PROPERTIES
| Property | Value | Test Method / Note |
|---|---|---|
| Appearance | Colorless, clear liquid | Visual |
| Odor | Ether-like, mild, characteristic | Olfactometric |
| Molecular Weight | 118.18 g/mol | Calculated |
| Melting Point | -74.8 °C | DSC |
| Boiling Point | 164.8 °C (at 760 mmHg) | ASTM D86 |
| Flash Point | 61 °C (closed cup) | ASTM D93 |
| Autoignition Temperature | ~230 °C | ASTM E659 |
| Density (20°C) | 0.9015 g/cm³ | ASTM D4052 |
| Vapor Pressure (20°C) | ~0.8 hPa | ASTM D2879 |
| Vapor Density (Air=1) | 4.07 (heavier than air) | Calculated |
| Refractive Index (nD²⁰) | 1.419 | Refractometry |
| Viscosity (20°C) | 3.15 cP | ASTM D445 |
| Surface Tension (20°C) | 27.4 mN/m (reduces water surface tension) | Du Noüy Ring |
| Solubility in Water | Completely miscible at all ratios | General Method |
| Solubility in Organic Solvents | Miscible with acetone, benzene, carbon tetrachloride, ethyl ether, n-heptane; slightly soluble in ethyl alcohol | General Method |
| Solubility (20°C) | 1000 mg/mL in water | General Method |
| Partition Coefficient (log P) | 0.83 (slightly lipophilic) | Calculated |
| Evaporation Rate (BuAc=1) | ~0.1 (slow evaporating) | ASTM D3539 |
| Explosive Limits in Air | 1.1 – 12.7 % vol | ASTM E681 |
| Dielectric Constant | 9.3 (at 20°C) | - |
| Specific Heat Capacity | 2.1 J/g·K | - |
| Hygroscopicity | Hygroscopic (absorbs moisture from air) | - |
SECTION 3: CHEMICAL PROPERTIES AND REACTIVITY
| Parameter | Information |
|---|---|
| Chemical Character | Primary alcohol and ether; protic solvent; non-ionic surfactant; amphiphilic molecule |
| Stability | Stable under normal conditions |
| Reactivity | Reacts with strong oxidizing agents, strong acids, and strong bases; forms peroxides upon prolonged exposure to air |
| Incompatible Materials | Strong oxidizing agents (nitric acid, chromic acid, peroxides), strong acids (sulfuric acid, hydrochloric acid), strong bases (sodium hydroxide), isocyanates |
| Polymerization | Does not polymerize |
| Decomposition Products (Heating) | CO, CO₂, aldehydes, ketones, and other organic fragments |
| Hazardous Reactions | May form explosive peroxides with air over time; reacts violently with strong acids and oxidizers |
| Corrosivity | Non-corrosive to most metals (mild steel, aluminum, copper) |
| Surfactant Action | Reduces surface tension of water → acts as a wetting agent and emulsifier |
SECTION 4: COMMON GLYCOL ETHERS COMPARISON TABLE
| Property | Butyl Glycol (EGBE) | Butyl Diglycol (BDG) | Propylene Glycol Methyl Ether (PGME) | Ethyl Glycol (EGEE) |
|---|---|---|---|---|
| CAS Number | 111-76-2 | 112-34-5 | 107-98-2 | 110-80-5 |
| Formula | C₆H₁₄O₂ | C₈H₁₈O₃ | C₄H₁₀O₂ | C₄H₁₀O₂ |
| Boiling Point | 164.8 °C | 230.4 °C | 120 °C | 135 °C |
| Flash Point | 61 °C | 100 °C | 32 °C | 44 °C |
| Density (g/cm³) | 0.902 | 0.955 | 0.921 | 0.931 |
| Solubility in Water | Fully miscible | Fully miscible | Fully miscible | Fully miscible |
| Evaporation Rate | Slow | Very slow | Medium | Medium |
| Primary Use | Water-based paints, cleaners | Industrial cleaners, inks | Coatings, electronics | Solvent, varnishes |
SECTION 5: FUNCTIONAL PROPERTIES AND MECHANISM OF ACTION
| Property | Description |
|---|---|
| Excellent Solvent | Dissolves a wide range of resins (alkyd, phenolic, nitrocellulose, modified maleic anhydride), oils, and organic compounds |
| Coupling Agent | Acts as a bridging solvent between water and organic substances; essential in water-based formulations |
| Surfactant Action | Reduces surface tension of water → enhances wetting, spreading, and penetration |
| Slow Evaporation | High boiling point provides open time in paints and coatings; prevents premature drying |
| Coalescing Agent | Helps latex particles fuse together → improves film formation in water-based paints |
| Hydrophilic-Lipophilic Balance | Contains both hydrophobic (butyl group) and hydrophilic (hydroxyl group) portions → amphiphilic behavior |
| Viscosity Modifier | Reduces viscosity of formulations; improves flow and leveling |
| Anti-Gelling Agent | Prevents gel formation in paints, adhesives, and cleaners |
SECTION 6: MAIN APPLICATION AREAS
| Industry / Application | Function | Typical Use |
|---|---|---|
| Paints and Coatings (Water-Based) | Primary solvent / coupling agent | Latex paints, acrylic emulsions, wood coatings; improves film formation and freeze-thaw stability |
| Printing Inks | Solvent / viscosity adjuster | Flexographic, gravure, and screen printing inks |
| Cleaning Products | Surfactant / solvent | Liquid detergents, industrial cleaners, degreasers, metal cleaners, engine cleaners, oil-removal products |
| Dry Cleaning | Solvent | Used in dry cleaning formulations |
| Paint Strippers | Active solvent | Removes paints, varnishes, and coatings from surfaces |
| Metal Cleaning | Degreasing agent | Removes oils, greases, and machining fluids from metal parts |
| Cosmetics and Personal Care | Solvent / viscosity modifier | Liquid soaps, hand sanitizers, skin care products |
| Pharmaceutical Industry | Extraction solvent | Used in drug extraction processes |
| Agriculture | Co-solvent / dispersant | Pesticide dispersants, herbicide formulations, insecticide carriers |
| Laboratory | General solvent | Reagent, chromatography, chemical synthesis |
| Adhesives and Sealants | Solvent / viscosity reducer | Epoxy solvents, adhesive formulations, sealant production |
| Fuels and Fuel Additives | Solvent / additive | Fuel formulations, cleaning of fuel systems, gasoline additives |
| Chemical Synthesis | Catalyst / reaction solvent | Used as a catalyst or intermediate in chemical reactions |
| Oil and Gas | Cleaning solvent | Pipeline cleaning, equipment degreasing |
| Resin Manufacturing | Solvent for resins | Alkyd resins, phenolic resins, nitrocellulose, modified maleic anhydride resins |
SECTION 7: QUALITY SPECIFICATIONS (TECHNICAL GRADE)
| Parameter | Specification | Test Method |
|---|---|---|
| Appearance | Clear, colorless liquid | Visual |
| Assay (2-Butoxyethanol) | ≥ 99.5 % | GC-FID |
| Water Content | ≤ 0.1 % | Karl Fischer Titration |
| Density (20°C) | 0.900 – 0.903 g/cm³ | ASTM D4052 |
| Boiling Range | 162 – 168 °C | ASTM D86 |
| Non-Volatile Residue | ≤ 0.005 % | Gravimetric |
| Acidity (as Acetic Acid) | ≤ 0.01 % | Titrimetric |
| Color (APHA) | ≤ 10 | ASTM D1209 |
| Distillation Range (95%) | ± 2 °C of 164.8 °C | ASTM D1078 |
| Peroxide Content | ≤ 5 ppm | Titrimetric |
SECTION 8: TOXICOLOGICAL PROFILE
| Parameter | Value |
|---|---|
| Acute Oral Toxicity (LD50, Rat) | ~ 1,400 – 2,500 mg/kg (moderate toxicity) |
| Acute Dermal Toxicity (LD50, Rabbit) | ~ 1,500 – 2,200 mg/kg (moderate) |
| Acute Inhalation Toxicity (LC50, Rat, 4h) | ~ 4,500 ppm (vapor) |
| Skin Irritation | Mildly irritating; repeated exposure may cause defatting and dermatitis |
| Eye Irritation | Moderately irritating; causes redness and temporary discomfort |
| Respiratory Irritation | Vapors may cause irritation at high concentrations |
| Carcinogenicity | Not classified (IARC, NTP) |
| Mutagenicity | Negative in standard tests |
| Reproductive Toxicity | High doses in animal studies showed testicular effects; occupational exposures are generally safe within limits |
| Occupational Exposure Limit (8h TWA) | 20 ppm (ACGIH); 50 ppm (OSHA) |
| Short-Term Exposure Limit (STEL) | 40 ppm (ACGIH); 75 ppm (OSHA) |
| Special Note | Hemolysis risk at very high exposures; absorption through skin is possible; use proper PPE |
SECTION 9: GHS CLASSIFICATION AND LABELING
GHS Classification (according to 1272/2008/EC and UN GHS):
| Hazard Class | Category | H-Statement |
|---|---|---|
| Acute Toxicity (Oral) | Category 4 | H302 |
| Acute Toxicity (Dermal) | Category 4 | H312 |
| Acute Toxicity (Inhalation) | Category 4 | H332 |
| Skin Irritation | Category 2 | H315 |
| Eye Irritation | Category 2 | H319 |
| Specific Target Organ Toxicity - SE | Category 3 | H335 |
| Specific Target Organ Toxicity - RE | Category 2 | H373 |
Signal Word: WARNING
Hazard Pictograms: GHS07 (Exclamation Mark)
Hazard Statements (H-Codes):
| Code | Statement |
|---|---|
| H302 | Harmful if swallowed |
| H312 | Harmful in contact with skin |
| H315 | Causes skin irritation |
| H319 | Causes serious eye irritation |
| H332 | Harmful if inhaled |
| H335 | May cause respiratory irritation |
| H373 | May cause damage to organs (blood, kidneys) through prolonged or repeated exposure |
SECTION 10: PRECAUTIONARY STATEMENTS (P-CODES)
| Code | Statement |
|---|---|
| P260 | Do not breathe vapors / mist / spray |
| P262 | Do not get in eyes, on skin, or on clothing |
| P280 | Wear protective gloves / protective clothing / eye protection |
| P301+P312 | IF SWALLOWED: Call a POISON CENTER / doctor if you feel unwell |
| P302+P352 | IF ON SKIN: Wash with plenty of soap and water |
| P304+P340 | IF INHALED: Remove person to fresh air and keep comfortable for breathing |
| P305+P351+P338 | IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing |
| P312 | Call a POISON CENTER / doctor if you feel unwell |
| P403+P233 | Store in a well-ventilated place. Keep container tightly closed |
| P405 | Store locked up |
| P501 | Dispose of contents/container in accordance with local/regional/national/international regulations |
SECTION 11: FIRST AID MEASURES
| Exposure Route | Action to Take |
|---|---|
| Inhalation | Move to fresh air. Keep at rest in a position comfortable for breathing. If symptoms persist, seek medical attention. |
| Skin Contact | Remove contaminated clothing. Wash with plenty of soap and water. If irritation develops, seek medical attention. |
| Eye Contact | Rinse immediately with plenty of water for at least 15 minutes. Remove contact lenses. Seek medical attention if irritation persists. |
| Ingestion | Rinse mouth. DO NOT induce vomiting. Seek immediate medical attention. |
SECTION 12: FIRE-FIGHTING MEASURES
| Parameter | Information |
|---|---|
| Fire Hazard | Combustible liquid (Flash point 61°C) |
| Hazards During Fire | Toxic CO, CO₂, aldehydes, ketones, and other organic compounds |
| Suitable Extinguishing Media | Dry chemical powder, CO₂, alcohol-resistant foam, water fog (for cooling) |
| Unsuitable Extinguishing Media | Water jet (may spread the fire) |
| Special Protective Equipment | Self-contained breathing apparatus (SCBA), full protective clothing |
| Special Precautions | Cool exposed containers with water fog; keep away from strong oxidizers and ignition sources |
SECTION 13: STORAGE AND SHELF LIFE
| Parameter | Information |
|---|---|
| Storage Conditions | Cool (15-25°C), dry, well-ventilated area; away from ignition sources and oxidizers |
| Container Requirements | Tightly closed, properly labeled containers; use non-reactive materials (HDPE, stainless steel, glass) |
| Materials to Protect From | Strong oxidizers, strong acids, strong bases, isocyanates, heat, open flames |
| Shelf Life | 24 months (in unopened original packaging, under proper storage conditions) |
| Stability Note | Stable under normal conditions; may form peroxides upon prolonged exposure to air and light → use of antioxidant/stabilizer recommended |
SECTION 14: PACKAGING OPTIONS
| Packaging Type | Quantity | Material |
|---|---|---|
| Glass Bottle | 1 L, 2.5 L | Amber glass |
| HDPE Jerrycan | 5 L, 10 L, 20 L, 25 L | HDPE |
| HDPE Drum | 200 L | HDPE |
| Steel Drum | 200 L | Carbon steel (lined) |
| IBC Container | 1000 L | HDPE / Stainless steel |
| Bulk Tanker | 20-25 tons | Stainless steel |
SECTION 15: TRANSPORT INFORMATION
| Parameter | Information |
|---|---|
| UN Number | UN 2369 (Butyl Glycol) / UN 1993 (Flammable liquid, n.o.s.) |
| Hazard Class | 3 (Flammable Liquid) |
| Packing Group | III |
| ADR/RID | UN 2369, Flammable Liquid, 3, PG III |
| IMDG Code | UN 2369, Flammable Liquid, 3, PG III |
| IATA (Air) | UN 2369, Flammable Liquid, 3, PG III |
| Marine Pollutant | No |
| Transport Temperature | Ambient; protect from heat and ignition sources |
SECTION 16: REGULATORY STATUS
| Region / Authority | Status |
|---|---|
| European Union | REACH registered; restricted under VOC regulations |
| USA (TSCA) | Listed |
| USA (EPA) | Regulated under Clean Air Act (VOC) |
| Turkey | Industrial chemical; subject to KKDIK (Registration, Evaluation, Authorization, and Restriction of Chemicals) regulation |
| IARC | Not classified as carcinogenic |
| OSHA | Regulated (hazardous chemical) |
| California (Prop 65) | Not listed |
| EU Restrictions | Concentration limit for use in certain applications |
SECTION 17: OTHER NAMES AND SYNONYMS
| Type | Name |
|---|---|
| English Synonyms | Butyl Glycol, Butyl Glycol Ether, EGBE, BG, 2-Butoxyethanol, Butyl Cellosolve, Butyl Oxitol, Dowanol EB, Eastman EB Solvent, Ektasolve EB, Jeffersol EB, 2-BE, EGMBE, Butyl Monoether Glycol, Glycol Butyl Ether, Butyl 2-hydroxyethyl ether, Butoxyethoxy Ethanol, Solvent, Butyglcol |
| Chemical Names | 2-Butoxyethanol, Ethylene Glycol Mono Butyl Ether, 2-n-Butoxyethanol, Butyl 2-hydroxyethyl ether |
| CAS Number | 111-76-2 |
| EC Number | 203-905-0 |
SECTION 18: BUTYL GLYCOL ALTERNATIVES
| Alternative | Best Suited For | Key Difference |
|---|---|---|
| Butyl Diglycol (BDG) | Industrial cleaners, printing inks | Higher boiling point (230°C), slower evaporation |
| Propylene Glycol Monobutyl Ether (PnB) | Water-based paints, cleaners | Lower toxicity, slightly different solvency |
| Propylene Glycol Methyl Ether (PGME) | Coatings, electronics | Faster evaporation, lower boiling point (120°C) |
| Dipropylene Glycol Methyl Ether (DPM) | Water-based coatings | Slower evaporation, better coalescence |
| Ethyl Glycol (EGEE) | Varnishes, solvents | Lower boiling point (135°C), more volatile |
| Isopropyl Alcohol (IPA) | General cleaning, disinfecting | Faster evaporation, stronger odor |
| Ethanol (Ethyl Alcohol) | Cosmetics, general solvent | Natural origin; different solvency profile |
SECTION 19: SUMMARY TABLE
| Parameter | Value |
|---|---|
| Product | Butyl Glycol (2-Butoxyethanol) |
| CAS Number | 111-76-2 |
| Molecular Formula | C₆H₁₄O₂ |
| Molecular Weight | 118.18 g/mol |
| Appearance | Colorless, clear liquid |
| Boiling Point | 164.8 °C |
| Melting Point | -74.8 °C |
| Flash Point | 61 °C |
| Density (20°C) | 0.9015 g/cm³ |
| Solubility | Fully miscible with water and most organic solvents |
| Primary Function | Solvent, coupling agent, surfactant, coalescing agent |
| Main Applications | Water-based paints, cleaners, inks, cosmetics, adhesives |
| Shelf Life | 24 months |
| GHS Signal Word | WARNING |
| UN Number | UN 2369 / UN 1993 |
SECTION 20: CRITICAL WARNINGS AND BEST PRACTICES
CRITICAL WARNINGS:
-
Harmful if swallowed, inhaled, or absorbed through skin (H302/H312/H332). Use adequate ventilation and PPE.
-
Causes serious eye irritation (H319) → Wear safety goggles.
-
May cause skin irritation (H315) → Use chemical-resistant gloves (nitrile, neoprene).
-
Organ Toxicity: Prolonged/repeated exposure may cause damage to blood and kidneys (H373).
-
Combustible: Flash point 61°C; keep away from ignition sources, sparks, and open flames.
-
Peroxide Formation: May form explosive peroxides on prolonged exposure to air and light → use stabilizers and avoid long-term storage in open containers.
-
Incompatibilities: Keep away from strong oxidizers, strong acids, strong bases, and isocyanates → violent reactions possible.
BEST PRACTICE RECOMMENDATIONS:
-
Water-Based Paints: Use 3-10% as a coalescing agent and coupling solvent; improves open time, flow, and film formation.
-
Cleaning Products: Use 5-15% in industrial detergents and degreasers; enhances oil removal and grease dissolution.
-
Printing Inks: Use 10-20% as a slow-evaporating solvent; improves print quality and prevents clogging.
-
Cosmetics: Use 1-5% in liquid soaps and hand sanitizers; provides moisturizing properties.
-
Storage: Store in tightly closed, properly labeled containers; fill containers to minimize air exposure → reduces peroxide formation.
-
Handling: Use in well-ventilated areas or under fume hood; avoid skin contact; wash thoroughly after handling.
-
Disposal: Dispose of in accordance with local, regional, and national regulations; do not discharge into water bodies.
LEGAL DISCLAIMER:
The information provided in this document is based on our current knowledge and experience and is presented in good faith. However, as all conditions of use are beyond our control, it does not constitute a binding specification or warranty. This Technical Data Sheet is for informational purposes only. Users are responsible for testing the suitability of the product for their specific applications. For complete safety, storage, use, handling, waste, and regulatory compliance information, please refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier.
