2,5,8,11-Tetraoxadodecane
Triglyme
1,2-bis(2-Methoxyethoxy)ethane
TEGDME
C8H18O4 / CH3(OCH2CH2)3OCH3
Molecular mass: 178.2
ICSC # 1570
CAS # 112-49-2
RTECS # XF0665000
EC # 603-176-00-2
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Types of Hazard/ Exposure
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Acute Hazards/ Symptoms
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Prevention
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First Aid/
Fire Fighting
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FIRE
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Combustible.
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NO open flames.
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Water spray, foam, powder, carbon dioxide.
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Explosion
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Exposure
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See EFFECTS OF LONG-TERM OR REPEATED Exposure.
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AVOID ALL CONTACT!
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•Inhalation
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
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•Skin
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Protective gloves.
Protective clothing.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Safety spectacles.
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First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
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•Ingestion
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Do not eat, drink, or smoke during work.
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Rinse mouth.
Give plenty of water to drink.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Ventilation.
Collect leaking and spilled liquid in sealable containers as far as possible.
Personal protection:
filter respirator for organic gases and vapours.
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Separated from
strong oxidants.
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T symbol
R: 61-62-19
S: 53-45
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH CHARACTERISTIC ODOUR.
Physical Dangers:
Chemical Dangers:
The substance can presumably form explosive peroxides.
Reacts
violently with
strong oxidants
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Occupational Exposure Limits:
TLV not established.
MAK not established.
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Routes of Exposure:
The substance can be absorbed into the body
by inhalation of its aerosol
and
by ingestion.
Inhalation Risk:
No indication can be given about the rate in which a harmful concentration in the air is reached on evaporation of this substance at 20°C.
Effects of Short-Term Exposure:
Effects of Long-Term or Repeated Exposure:
Animal tests show that this substance possibly causes toxicity to human reproduction or development.
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Physical
Properties
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Boiling point: 216°C
Melting point: -45°C
Relative density (water = 1): 0.99
Solubility in water: miscible
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Vapour pressure, kPa at 20°C: 0.12
Relative vapour density (air = 1): 6.14
Flash point: 111°C o.c.
Octanol/water partition coefficient as log Pow: -0.48
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Environmental
Data
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N O T E S
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Check for peroxides prior to distillation; eliminate if found.
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ADDITIONAL INFORMATION
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ICSC: 1570
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TRIETHYLENE GLYCOL DIMETHYL ETHER
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(C) IPCS, CEC, 1994
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IMPORTANT LEGAL NOTICE:
Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH,
the CEC or the IPCS is responsible for the use which might be made of this
information. This card contains the collective views of the IPCS Peer Review Committee and may
not reflect in all cases all the detailed requirements included in national legislation
on the subject. The user should verify compliance of the cards with the relevant legislation
in the country of use.
The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and NIOSH IDLH values.
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