Butyl ether

  • Dibutyl ether
  • 1,1'-Oxybis[butane]
  • 1-Butoxybutane
Formula
(CH3CH2CH2CH2)2O
Structure
Description
A clear colorless liquid with an ethereal odor.
Uses
Extracting agent, used especially for separating metals, solvent purification, organic synthesis (reaction medium), solvent for hydrocarbons, fatty materials.

Registry Numbers and Inventories.
CAS
142-96-1
EC (EINECS/ELINCS)
205-575-3
EC Index Number
603-054-00-9
EC Class
Flammable; Irritant
R 10 36/37/38
RTECS
EK5425000
RTECS class
Human Data; Primary Irritant
UN (DOT)
1149
Merck
13,1568
Beilstein/Gmelin
1732752
Beilstein Reference
4-01-00-01520
Swiss Giftliste 1
G-1322
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H18O
Formula mass
130.23
Melting point, °C
-95
Boiling point, °C
141
Vapor pressure, mmHg
6 (25 C)
Vapor density (air=1)
4.48
Odor Threshold Odor threshold 0.37 mg/m3
Critical temperature
315
Critical pressure
29.71
Density
0.767 g/cm3 (20 C)
Solubility in water
Insoluble.
Viscosity
0.51 cp (50 C)
Surface tension
23.47 g/s2 (15 C)
Refractive index
1.3992 (20 C)
Dipole moment
1.2 D (20 C)
Dielectric constant
3.1 (25 C)
Partition coefficient, pKow
3.21
Heat of vaporization
44.99 kJ/mol
Heat of combustion
-5293 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area. Storage under a nitrogen blanket has been recommended.
B2 D2B
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. 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
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Remove all sources of ignition.
Disposal code
1
Stability
Stable under normal temperatures and pressures. Can form peroxides, especially on long standing. Peroxide formation may occur in containers that have been opened and remain in storage. Peroxides can be detonated by friction, impact, or heating.
Incompatibilities
Acids (mineral, non-oxidizing, e.g. hydrochloric acid, hydrofluoric acid, muriatic acid, phosphoric acid), acids (mineral, oxidizing, e.g. chromic acid, hypochlorous acid, nitric acid, sulfuric acid), oxidizing agents (strong, e.g. bromine, hydrogen peroxide, nitrogen dioxide, potassium nitrate), water reactive substances (e.g. acetic anyhdride, alkyl aluminum chloride, calcium carbide, ethyl dichlorosilane).
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
25
Autoignition, °C
185
Upper exp. limit, %
8.5
Lower exp. limit, %
0.9
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. To extinguish fire, use water fog, dry chemical, carbon dioxide, or regular foam.
Fire potential
Only electrical equipment of explosion-proof type (group c classification) are permitted to be operated in ether areas. Ether should not be stored near powerful oxidizers or in areas of high fire hazard.
Hazards
Vapor is heavier than air and may travel a considerable distance to a source of ignition and flash back. May form explosive peroxides.
Combustion products
Moderately dangerous; when heated, it emits acrid fumes.
Health
2
 
Flammability
3
 
 
Reactivity
0
 

Health.
Poison_Class
5
Exposure effects
Irregular breathing, reduced body temperature, and low heart rate have been noted as early effects in industrial exposures. Exhaustion, dizziness, excitation, headache, CNS depression, and seizures have occurred. Ether readily passes the placental barrier. Concentrations in the fetus are expected to be the same as in the maternal blood.
   Ingestion
May be absorbed through the gastrointestinal tract; symptoms may parallel inhalation. Additional symptoms may include vomiting, stomach pain.
   Inhalation
Causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath. Inhalation of high concentrations may affect the central nervous system and have a narcotic effect.
   Skin
May cause skin irritation. Symptoms include redness, itching, and pain.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
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.
   Skin
Get medical aid. 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
1149
Response guide
Hazard class
3
Packing Group
III
 
USCG CHRIS Code
DBE
 
HS Code
2909 19 00
 
Std. Transport #
4910231
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
S/P