Diethyl carbonate

  • Ethyl carbonate
  • Carbonic acid, diethyl ester
Formula
CO(OC2H5)2
Structure
Description
A colorless liquid with a mild pleasant odor.
Uses
Solvent for nitrocellulose, manufacture radio tubes, fixing rare earths to cathode elements.

Registry Numbers and Inventories.
CAS
105-58-8
EC (EINECS/ELINCS)
203-311-1
EC Class
flammable
S 16 24/25
RTECS
FF9800000
RTECS class
Tumorigen; Drug; Reproductive Effector
UN (DOT)
2366
Merck
13,3815
Beilstein/Gmelin
956591
Beilstein Reference
4-03-00-00005
Swiss Giftliste 1
G-2336
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C5H10O3
Formula mass
118.13
Melting point, °C
-43
Boiling point, °C
127
Vapor pressure, mmHg
11 (25 C)
Saturation Concentration
64 g/m3 (20 C)
Evaporization number
14 (diethyl ether = 1)
Density
0.9751 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
0.749 cp (25 C)
Surface tension
26.31 g/s2 (20 C)
Refractive index
1.3843 (20 C)
Dipole moment
0.9 D (20 C)
Dielectric constant
3.1 (20 C)
Partition coefficient, pKow
1.21
Heat of vaporization
40.2 kJ/mol
Heat of combustion
-2689 kJ/mol

Hazards and Protection.
Storage
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.
Handling
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Avoid contact with skin and eyes. 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. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. Provide ventilation.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Oxidizing agents, moisture, strong acids, strong bases, and reducing agents. Forms explosive mixtures in air.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
33
Autoignition, °C
445
Upper exp. limit, %
11.0
Lower exp. limit, %
1.4
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. May polymerize explosively when involved in a fire. Containers may explode if exposed to fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. Do NOT use water directly on fire. For large fires, use water spray, fog or alcohol-resistant foam. Do NOT use straight streams of water. Cool containers with flooding quantities of water until well after fire is out.
Fire potential
HIGHLY FLAMMABLE.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
3
 
 
Reactivity
1
 

Health.
Poison_Class
-
Exposure effects
The toxological properties of this substance have not been fully investigated.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
May cause respiratory tract irritation.
   Skin
May cause skin irritation.
   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.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Get medical aid if irritation develops or persists. Wash clothing before reuse.
   Eyes
Immediately 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
2366
Response guide
Hazard class
3
Packing Group
III
 
USCG CHRIS Code
DEC
 
HS Code
2920 90 10
 
Std. Transport #
4909218