2-butoxyethyl acetate

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Structural formula
Structural formula of (2-butoxyethyl) acetate
General
Surname 2-butoxyethyl acetate
other names
  • Ethylene glycol monobutyl ether acetate
  • 2-butoxyethanol acetate
  • Butyl glycol acetate
  • Glycol monobutyl ether acetate
  • EGBEA
  • BGA
  • Butyl Cellosolve Acetate
Molecular formula C 8 H 16 O 3
Brief description

colorless liquid with a faint ester-like odor

External identifiers / databases
CAS number 112-07-2
EC number 203-933-3
ECHA InfoCard 100.003.576
PubChem 8160
Wikidata Q122791
properties
Molar mass 160.21 g mol −1
Physical state

liquid

density

0.94 g cm −3

Melting point

−64 ° C

boiling point

192 ° C

Vapor pressure

0.31 mbar (20 ° C)

solubility
  • slightly soluble in water (15 g l −1 at 20 ° C)
  • Miscible with many common organic solvents such as alcohols, ketones, aldehydes, ethers, glycols and glycol ethers
Refractive index

1.4138 (20 ° C, 589 nm)

safety instructions
GHS hazard labeling from  Regulation (EC) No. 1272/2008 (CLP) , expanded if necessary
07 - Warning

Caution

H and P phrases H: 312 + 332
P: 280-302 + 352 + 312-304 + 340 + 312
MAK
  • DFG : 20 ppm, 133 mg m −3 
  • Switzerland: 10 ml m −3 or 66 mg m −3
Toxicological data

2400 mg kg −1 ( LD 50 ,  rat ,  oral )

As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

(2-Butoxyethyl) acetate is a chemical compound from the group of carboxylic acid esters and ethers .

Extraction and presentation

(2-Butoxyethyl) acetate is mainly produced by reacting 2-butoxyethanol with acetic acid. To a lesser extent, the reaction with acetic anhydride or acetic acid chloride is also used for production.

properties

(2-Butoxyethyl) acetate is a slightly volatile, colorless liquid with a faint ester-like odor, which is not very soluble in water. It decomposes when heated, producing acrid and irritating vapors. Due to its ether bridge and ester group , butyl glycol acetate shows the reactions typical for this class of substances. At 20 ° C it has a viscosity of 1.79 mPa · s, a surface tension of 28.5 mN / m, a dielectric constant of 6.8 and a specific heat capacity of 2.004 kJ / (kg · K). Its heat of combustion at 25 ° C is 29,350 kJ / kg and its heat of vaporization at 1013 mbar is 279 kJ / kg.

use

(2-Butoxyethyl) acetate is mainly used in the paint industry. Because of its low volatility and its good dissolving power, it is used here as an additive to stoving enamels that are stoved at high temperatures (150–200 ° C). It improves the gloss and flow of the paint films. By the addition of very small amounts of butyl glycol acetate to coating lacquers based on cellulose nitrate , chlorine-containing binders or cellulose ethers can be improved their course and spreadability. It is also suitable as a solvent for isocyanate varnishes , ballpoint pen pastes , flexographic printing inks , gravure printing inks , screen printing inks and is used for leather and textile printing.

safety instructions

The vapors of (2-butoxyethyl) acetate form an explosive mixture with air ( flash point 74 ° C, ignition temperature 355 ° C).

Web links

Individual evidence

  1. ↑ a b c d e f g h i j k l m Entry on (2-butoxyethyl) acetate in the GESTIS substance database of the IFA , accessed on January 26, 2020(JavaScript required) .
  2. ↑ a b c BASF: butyl glycol acetate
  3. ↑ Data sheet (2-butoxyethyl) acetate (PDF) from Merck , accessed on October 5, 2011.
  4. ↑ Entry on 2-butoxyethyl acetate in the Classification and Labeling Inventory of the European Chemicals Agency (ECHA), accessed on February 1, 2016. Manufacturers or distributors can expand the harmonized classification and labeling .
  5. ↑ Swiss Accident Insurance Fund (Suva): Limit values ​​- current MAK and BAT values (search for 112-07-2 or 2-butoxyethyl acetate ), accessed on September 23, 2019.