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
EC Risk Phrase R 20/21/22 36/38
EC Safety Phrase 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.
WHMIS 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.
NFPA 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 152
Hazard class 6.1
Packing Group III  
USCG CHRIS Code EGM  
USCG Compatatibility Group 40 Glycol ethers
HS Code 2909 43 00  
Std. Transport # 4925128 4925229  
IMO Chemical Code 17
IMO Pollution Category D
IMO Hazard code S