Ethylene glycol butyl ether , AR,99.0% , 111-76-2
Synonym(s):
2-Butoxyethanol;Butyl glycol;Ethylene glycol butyl ether;Ethylene glycol monobutyl ether;Ethylene Glycol Monobutyl Ether, Butoxyethanol
CAS NO.：111-76-2
Empirical Formula: C6H14O2
Molecular Weight: 118.17
MDL number: MFCD00002884
EINECS: 203-905-0
PRODUCT Properties
| 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 | n |
| Flash point: | 140 °F |
| storage temp. | Store below +30°C. |
| solubility | 900g/l completely miscible |
| form | Liquid |
| pka | 14.42±0.10(Predicted) |
| color | Clear |
| PH | 7 (H2O, 20℃)(as aqueous solution) |
| Odor | Mild, characteristic; slightly rancid; mild ethereal. |
| Odor Threshold | 0.043ppm |
| explosive limit | 1.1-10.6%(V) |
| Water Solubility | miscible |
| λmax | λ: 230 nm Amax: 1.0 λ: 250 nm Amax: 0.10 λ: 275 nm Amax: 0.05 λ: 300-400 nm Amax: 0.01 |
| 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) |
| 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).
. |
| Dielectric constant | 5.2999999999999998 |
| 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) |
Description and Uses
2-Butoxyethanol is a clear, colourless liquid with ether-like smell.2-Butoxyethanol is usually produced by a reaction of ethylene oxide with butyl alcohol, but it may also be made by the reaction of ethylene glycol with dibutyl sulphate. 2-Butoxyethanol is widely used as a solvent in protective surface coatings such as spray lacquers, quick-dry lacquers, enamels, varnishes, and latex paints. It is also used as an ingredient in paint thinners and strippers, varnish removers, agricultural chemicals, herbicides, silicon caulks, cutting oils, and hydraulic fluids and as metal cleaners, fabric dyes and inks, industrial and household cleaners (as a degreaser), and dry-cleaning compounds. It is also used in liquid soaps and in cosmetics. 2-Butoxyethanol acetate has been reported to be present in air, water, and soil as a contaminant and exposure to it occurs during its manufacture and use as an intermediate in the chemical industry, and during the formulation and use of its products in multiple industrial activities. The acetate form of 2-butoxyethanol is 2-butoxyethanol acetate and also known as ethylene glycol monobutyl ether acetate.
2-Butoxyethanol is a reagent in synthesising 4-butoxyethoxy-N-octadecyl-1,8-naphthalimide as a new fluorescent probe for determining proteins. It is also used as a reagent in synthesising 4-hydroxybenzaldehyde derivatives as tyrosinase inhibitors. It is used widely as a coupling solvent because of its superior coupling efficiency and excellent solvency for resins. Ethylene glycol monobutyl ether (2-Butoxyethanol) is used as a solvent for nitrocellulose, resins, oil, and grease and in dry cleaning.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302+H332-H315-H319 |
| Precautionary statements | P261-P264-P301+P312-P302+P352-P304+P340+P312-P305+P351+P338 |
| Hazard Codes | Xn |
| Risk Statements | 20/21/22-36/38 |
| Safety Statements | 36/37-46 |
| RIDADR | 1986 |
| OEB | A |
| OEL | TWA: 5 ppm (24 mg/m3) [skin] |
| 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 |
