Tetramethoxymethane

  • Dimethoxymethylal
  • Tetramethyl orthocarbonate
  • Orthocarbonic acid, tetramethyl ester
  • NSC 359558
Formula
C5H12O4
Structure

Registry Numbers and Inventories.
CAS
1850-14-2
EC (EINECS/ELINCS)
217-438-5
10 36/37/38
UN (DOT)
3272
Beilstein/Gmelin
1737682
Korea ECL
Listed

Properties.
Formula
C5H12O4
Formula mass
136.15
Melting point, °C
-5
Boiling point, °C
114
Vapor pressure, mmHg
24 (25 C)
Critical temperature
300
Critical pressure
32.34
Density
1.023 g/cm3 (25 C)
Solubility in water
110 g/L (25 C)
Refractive index
1.385 (20 C)
Partition coefficient, pKow
2.56
Heat of vaporization
33.79 kJ/mol

Hazards and Protection.
Storage
Keep tightly closed. Keep away from heat, sparks, and open flame. Store in a cool dry place.
Protection
Compatible chemical-resistant gloves. Chemical safety goggles. Protective clothing.
Small spills/leaks
Cover with dry-lime, sand, or soda ash. Place in covered containers using non-sparking tools and transport outdoors. Ventilate area and wash spill site after material pickup is complete.
Stability
Moisture sensitive.
Incompatibilities
Moisture, acids and strong oxidizing agents.
Decomposition
Oxides of carbon.

Fire.
Flash Point,°C
22
Fire fighting
Extinguish with carbon dioxide, dry chemical powder or appropriate foam. Do not use water. Wear self-contained breathing apparatus and protective clothing to prevent contact with skin and eyes.
Fire potential
Flammable liquid.
Hazards
Emits toxic fumes under fire conditions. Vapor may travel considerable distance to source of ignition and flash back.

Health.
Exposure effects
Vapor or mist is irritating to the eyes, mucous membranes, and upper respiratory tract. May be harmful by inhalation, ingestion, or skin absorption.
   Skin
Causes irritation.

First aid
 
   Ingestion
If swallowed, wash out mouth with water provided person is conscious. Call a physician.
   Inhalation
If inhaled, remove to fresh air. If not breathing give artificial respiration. If breathing is difficult, give oxygen.
   Skin
In case of contact, immediately wash skin with soap and copious amounts of water. Remove contaminated clothing and shoes. Call a physician.
   Eyes
In case of contact with eyes, flush with copious amounts of water for at least 15 minutes. Assure adequate flushing by separating the eyelids with fingers. Call a physician.

Transport.
UN number
3272
Response guide
Hazard class
3
Packing Group
II