1,1-Diethoxyethane
Ethylidene diethyl ether
Diethylacetal
Acetaldehyde diethyl acetal
C6H14O2
Molecular mass: 118.20
ICSC # 1070
CAS # 105-57-7
RTECS # AB2800000
UN # 1088
EC # 605-015-00-1
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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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Highly flammable.
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NO open flames, NO sparks, and NO smoking.
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Powder, AFFF, foam, carbon dioxide.
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Explosion
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Vapour/air mixtures are explosive.
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Closed system, ventilation, explosion-proof electrical equipment and lighting.
Do NOT use compressed air for filling, discharging, or handling.
Use non-sparking handtools.
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In case of fire: keep drums, etc., cool by spraying with water.
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Exposure
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•Inhalation
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Cough.
Dizziness.
Drowsiness.
Headache.
Nausea.
Sore throat.
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Ventilation, local exhaust, or breathing protection.
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Fresh air, rest.
Refer for medical attention.
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•Skin
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Redness.
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Protective gloves.
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Remove contaminated clothes.
Rinse skin with plenty of water or shower.
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•Eyes
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Redness.
Pain.
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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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Diarrhoea.
Nausea.
Vomiting.
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Do not eat, drink, or smoke during work.
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Do NOT induce vomiting.
Give plenty of water to drink.
Refer for medical attention.
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Spillage Disposal
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Storage
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Packaging & Labelling
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Remove all ignition sources.
Collect leaking liquid in covered containers.
Absorb remaining liquid in sand or inert absorbent and remove to safe place.
(Extra personal protection: filter respirator for organic gases and vapours.)
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Fireproof.
Separated from
strong oxidants.
Cool.
Keep in the dark.
Well closed.
Store only if stabilized.
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Airtight.
F symbol
Xi symbol
R: 11-36/38
S: 2-9-16-33
UN Hazard Class: 3
UN Packing Group: II
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Important Data
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Physical State; Appearance:
COLOURLESS LIQUID
, WITH PUNGENT ODOUR.
Physical Dangers:
The vapour is heavier than air
and may travel along the ground; distant ignition possible.
Chemical Dangers:
The substance can form explosive peroxides under the influence of lightandair.
The substance may polymerize on standing.
Reacts
violently with
oxidants
causing fire and explosion hazard.
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 vapour
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:
The substance
is irritating to
the eyes,
the skin
and
the respiratory tract.
Exposure may result in lowering of consciousness.
Effects of Long-Term or Repeated Exposure:
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Physical
Properties
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Boiling point: 103°C
Melting point: -100°C
Relative density (water = 1): 0.83
Solubility in water, g/100 ml: 5.0
Vapour pressure, kPa at 20°C: 2.7
Relative vapour density (air = 1): 4.1
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Relative density of the vapour/air-mixture at 20°C (air = 1): 1.08
Flash point:
-21°C c.c.
Auto-ignition temperature: 230°C
Explosive limits, vol% in air: 1.6-10.4
Octanol/water partition coefficient as log Pow: 0.84
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Environmental
Data
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N O T E S
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An added stabilizer or inhibitor can influence the toxicological properties of this substance, consult an expert.
Check for peroxides prior to distillation; eliminate if found.
Transport Emergency Card: TEC (R)-30S1088
NFPA Code: H0; F3; R0;
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ADDITIONAL INFORMATION
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ICSC: 1070
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ACETAL
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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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