Products Description of 2-Butoxyethanol CAS#111-76-2
2-Butoxyethanol (2-BE) is a clear, colorless liquid with an ether-like smell. It is mainly synthesized via two methods: the reaction of ethylene oxide with butyl alcohol, or the reaction of ethylene glycol with dibutyl sulfate.It is widely used as a solvent in protective coatings such as lacquers, enamels, varnishes, and latex paints. It also acts as a key component in various products, including paint thinners, strippers, agricultural chemicals, herbicides, industrial and household cleaners (degreasers), metal cleaners, inks, dry-cleaning compounds, liquid soaps, and cosmetics.Its acetate derivative—2-butoxyethanol acetate (also known as ethylene glycol monobutyl ether acetate)—can contaminate air, water, and soil during its manufacturing process, industrial application, and product formulation stages.
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 |
Product Application of 2-Butoxyethanol CAS#111-76-2
2-Butoxyethanol acts as a reagent in two key synthesis processes: the production of 4-butoxyethoxy-N-octadecyl-1,8-naphthalimide—a novel fluorescent probe for protein determination—and the synthesis of 4-hydroxybenzaldehyde derivatives that function as tyrosinase inhibitors.
It is widely employed as a coupling solvent, thanks to its excellent coupling efficiency and strong solvency for resins. Also known as ethylene glycol monobutyl ether, it serves as a solvent for nitrocellulose, resins, oils, and greases, and is additionally used in dry cleaning applications.
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