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Sigma-Aldrich

Ethylene glycol butyl ether

spectrophotometric grade, ≥99.0%

Synonym(s):

2-Butoxyethanol, Butyl glycol

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About This Item

Linear Formula:
CH3(CH2)3OCH2CH2OH
CAS Number:
111-76-2
Molecular Weight:
118.17
Beilstein:
1732511
EC Number:
203-905-0
MDL number:
MFCD00002884
UNSPSC Code:
12352104
PubChem Substance ID:
329752806
NACRES:
NA.21

grade

spectrophotometric grade

vapor density

4.1 (vs air)

vapor pressure

<1 mmHg ( 20 °C)
10 mmHg ( 81 °C)

Assay

≥99.0%

form

liquid

autoignition temp.

473 °F

expl. lim.

10.6 %

technique(s)

UV/Vis spectroscopy: suitable

impurities

≤0.1% water

evapn. residue

<0.001%

refractive index

n20/D 1.419 (lit.)

bp

169-172.5 °C (lit.)

mp

−75 °C (lit.)

density

0.902 g/mL at 25 °C (lit.)

λ

H2O reference

UV absorption

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

SMILES string

CCCCOCCO

InChI

1S/C6H14O2/c1-2-3-5-8-6-4-7/h7H,2-6H2,1H3

InChI key

POAOYUHQDCAZBD-UHFFFAOYSA-N

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General description

Ethylene glycol butyl ether is a member of the glycol ether family. It is commonly used as a solvent for pharmaceuticals, agricultural chemicals hydraulic fluids, resins, and varnishes. Ethylene glycol butyl ether or 2-Butoxyethanol (BEG) has an amphiphilic character, it can be utilized to stabilize emulsions, particularly in oil spill dispersants.

Application

Ethylene glycol butyl ether is used as a co-solvent:,In the preparation of conductive inks.

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H302,H315,H319,H331

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

152.6 °F - Pensky-Martens closed cup

Flash Point(C)

67 °C - Pensky-Martens closed cup

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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B S Dean et al.
Journal of toxicology. Clinical toxicology, 30(4), 557-563 (1992-01-01)
Ethylene glycol butyl ether, CAS 111-76-2, an ingredient in many popular commercial window/glass cleaners, is known to produce equal if not greater toxicity than ethylene glycol when administered to animals. Treatment recommendations for human poisonings are based upon animal data
Reproductive toxicology. Ethylene glycol monobutyl ether.
Environmental health perspectives, 105 Suppl 1, 217-218 (1997-02-01)
Prajakta S Palkar et al.
Toxicology and applied pharmacology, 230(3), 338-345 (2008-04-26)
Administration of a low priming dose of 2-butoxyethanol (BE, 500 mg/kg, p.o.) 7 days prior to a larger LD(90) dose (1500 mg BE/kg, p.o.) offers protection against the lethal dose-induced hemolysis and death in female Sprague Dawley rats because of
G Amir et al.
The British journal of oral & maxillofacial surgery, 49(1), 21-25 (2009-12-26)
Female rats develop haemolytic anaemia and disseminated thrombosis and infarction in multiple organs, including bone, when exposed to 2-butoxyethanol (BE). There is growing evidence that vascular occlusion of the subchondral bone may play a part in some cases of osteoarthritis.
Matthew J Traynor et al.
Toxicology letters, 177(3), 151-155 (2008-03-04)
Glycol ethers are widely used in industrial and household applications because their chemical and physical properties make them versatile solvents, miscible with both water and organic media. Due to the ease with which the glycol ethers are absorbed through the
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