Ethylene glycol monobutyl ether

  • 2-Butoxyethanol
  • Butyl cellusolve
  • Butyl glycol
  • Butyl oxitol
Formula
C4H9OCH2CH2OH
Structure
Description
Colorless liquid with a weak, pleasant, sweet, ester odor.
Uses
In hydraulic fluids.

Registry Numbers and Inventories.
CAS
111-76-2
EC (EINECS/ELINCS)
203-905-0
EC Index Number
603-014-00-0
EC Class
Harmful; Irritant
R 20/21/22 36/38
S 36/37 46
RTECS
KJ8575000
RTECS class
Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant
UN (DOT)
2369
Merck
13,1558
Beilstein/Gmelin
1732511
Beilstein Reference
4-01-00-02380
EPA OPP
11501
Swiss Giftliste 1
G-1334
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H14O2
Formula mass
118.18
Melting point, °C
-70
Boiling point, °C
171
Vapor pressure, mmHg
0.8 (20 C)
Vapor density (air=1)
4.1
Saturation Concentration
0.1% at 20 C
Evaporization number
0.07 (butyl acetate = 1)
Critical temperature
370
Critical pressure
38.50
Density
0.902 g/cm3 (20 C)
Solubility in water
Miscible
Viscosity
1.87 cp (40 C)
Surface tension
27.4 g/s2 @ 25 C.
Refractive index
1.4196 (20 C)
Dipole moment
1.8 D
Dielectric constant
9.4 (20 C)
Partition coefficient, pKow
0.83
Heat of vaporization
47.1 kJ/mol
Heat of combustion
-4163 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances.
B3 D1A D2B
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Do not get in eyes, on skin, or on clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Do not ingest or inhale. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
A full facepiece respirator with organic vapor cartridge may be worn up to 50 times the exposure limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest. For emergencies or instances where the exposure levels are not known, use a full-facepiece positive-pressure, air-supplied respirator. This compound possibly exists in both particulate and vapor phase. A particulate (NlOSH type N95 or better) prefilter should be used for the particulate.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizers and strong bases.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
62
Autoignition, °C
238
Upper exp. limit, %
12.7
Lower exp. limit, %
1.1
Fire fighting
Wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode. Extinguish with dry chemical, alcohol foam or carbon dioxide. Do not use a solid stream of water, since the stream will scatter and spread the fire. Water spray may be used to keep fire exposed containers cool, dilute spills to nonflammable mixtures, protect personnel attempting to stop leak and disperse vapors
Fire potential
May burn but does not ignite readily.
Hazards
Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
2
 
 
Reactivity
0
 

Health.
Exposure limit(s)
TLV: 25 ppm; 121 mg/m3 (as TWA) (skin) (ACGIH 1992-1993) OSHA PEL: TWA 50 ppm (240 mg/m3) skin NIOSH REL: TWA 5 ppm (24 mg/m3) skin NIOSH IDLH: 700 ppm
Poison_Class
4
Exposure effects
Prolonged or repeated exposures can cause damage to the liver, kidneys, lymphoid system, blood and blood-forming organs.
   Ingestion
Causes irritation to the gastrointestinal tract. Symptoms may include nausea, vomiting and diarrhea. Toxic! May cause systemic poisoning with symptoms paralleling those of inhalation.
   Inhalation
Causes irritation to the respiratory tract. Symptoms may include sore throat, coughing, headache, nausea and shortness of breath. High concentrations have a narcotic effect.
   Skin
May cause irritation with redness and pain. May be absorbed through the skin with possible systemic effects.
   Eyes
Vapors are irritating and may produce immediate pain, redness and tearing. Splashes can cause severe pain, stinging, swelling.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. DO NOT use mouth-to-mouth respiration.
   Skin
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
2369
Response guide
Hazard class
6.1
Packing Group
III
 
USCG CHRIS Code
EGM
 
40 Glycol ethers
HS Code
2909 43 00
 
Std. Transport #
4925128 4925229
 
IMO Chemical Code
17
IMO Pollution Category
D
IMO Hazard code
S