2-Butoxyethanol CAS#111-76-2
Versatile Solvent: 2-Butoxyethanol is widely used in the formulation of coatings, paint thinners, cleaning products, and cosmetics, making it highly versatile in various industrial and household applications.
Effective in Degreasing: It plays a crucial role in degreasers and metal cleaners, making it an essential ingredient for industrial cleaning and maintenance.
Good Solubility: The solvent is highly soluble in water (900g/l) and miscible with many organic solvents, enhancing its effectiveness in a variety of formulations.
Low Freezing Point: With a melting point of -70°C, 2-Butoxyethanol remains liquid in low temperatures, making it suitable for use in cold environments and applications requiring low freezing points.
2-Butoxyethanol (2-BE) is a clear, colorless liquid with an ether-like odor, commonly produced by reacting ethylene oxide with butyl alcohol, or alternatively through ethylene glycol and dibutyl sulfate. This versatile solvent is widely used in the formulation of protective coatings such as lacquers, enamels, varnishes, and latex paints, as well as in paint thinners and strippers. It is also an important ingredient in various industrial and household cleaning products, including degreasers, metal cleaners, and liquid soaps.
Additionally, it finds applications in agricultural chemicals, herbicides, inks, dry-cleaning compounds, and cosmetics. The acetate derivative, 2-butoxyethanol acetate (ethylene glycol monobutyl ether acetate), is a significant contaminant in air, water, and soil during its production, industrial use, and incorporation into consumer products, raising environmental concerns.
Parameters
Melting point | -70 °C |
Boiling point | 171 °C |
density | 0.902 g/mL at 25 °C(lit.) |
vapor density | 4.1 (vs air) |
vapor pressure | <1 mm Hg ( 20 °C) |
refractive index | n20/D 1.419(lit.) |
Fp | 140 °F |
storage temp. | Store below +30°C. |
solubility | 900g/l completely miscible |
pka | 14.42±0.10(Predicted) |
form | Liquid |
color | Clear |
Odor | Mild, characteristic; slightly rancid; mild ethereal. |
PH | 7 (H2O, 20℃)(as aqueous solution) |
Odor Threshold | 0.043ppm |
explosive limit | 1.1-10.6%(V) |
Water Solubility | miscible |
λmax | λ: 230 nm Amax: 1.0 |
Merck | 14,1559 |
BRN | 1732511 |
Henry's Law Constant | (x 10-6 atm?m3/mol): 2.36 (approximate - calculated from water solubility and vapor pressure) |
Dielectric constant | 5.2999999999999998 |
Exposure limits | TLV-TWA skin 25 ppm (121 mg/m3) (ACGIH), 50 ppm (242 mg/m3) (OSHA); STEL 75 ppm (363 mg/m3) (ACGIH);IDLH 700 ppm (NIOSH). . |
LogP | 0.81 at 20℃ |
CAS DataBase Reference | 111-76-2(CAS DataBase Reference) |
IARC | 3 (Vol. 88) 2006 |
NIST Chemistry Reference | 2-n-Butoxy-1-ethanol(111-76-2) |
EPA Substance Registry System | Ethylene glycol monobutyl ether (111-76-2) |
Safety Information
Hazard Codes | Xn |
Risk Statements | 20/21/22-36/38 |
Safety Statements | 36/37-46 |
OEB | A |
OEL | TWA: 5 ppm (24 mg/m3) [skin] |
RIDADR | 1986 |
WGK Germany | 1 |
RTECS | KJ8575000 |
Autoignition Temperature | 473 °F |
TSCA | Yes |
HS Code | 2909 43 00 |
HazardClass | 6.1 |
PackingGroup | III |
Hazardous Substances Data | 111-76-2(Hazardous Substances Data) |
Toxicity | LD50 orally in rats: 1.48 g/kg (Smyth) |
IDLA | 700 ppm |
