CHLOROMETHYL METHYL ETHER 0238
September 1993
CAS No: 107-30-2 Dimethylchloro ether
RTECS No: KN6650000 Chloromethoxymethane
UN No: 1239 CH3OCH2CI
EC No: 603-075-00-3 Molecular mass: 80.5
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Extremely flammable. Gives off irritating NO open flames, NO sparks, and NO Powder, alcohol-resistant foam, water in
or toxic fumes (or gases) in a fire. smoking. large amounts, carbon dioxide. Water
may be ineffective.
EXPLOSION Vapour/air mixtures are explosive. Closed system, ventilation, In case of fire: keep drums, etc., cool by
explosion-proof electrical equipment and spraying with water.
lighting.
EXPOSURE PREVENT GENERATION OF MISTS! IN ALL CASES CONSULT A DOCTOR!
AVOID ALL CONTACT!
Inhalation Burning sensation. Cough. Dizziness. Closed system and ventilation. Fresh air, rest. Half-upright position.
Headache. Laboured breathing. Nausea. Artificial respiration may be needed. Refer
Sore throat. for medical attention.
Skin Redness. Skin burns. Pain. Blisters. Protective gloves. Protective clothing. Remove contaminated clothes. Rinse
skin with plenty of water or shower. Refer
for medical attention.
Eyes Redness. Pain. Blurred vision. Loss of Face shield or eye protection in First rinse with plenty of water for several
vision. Severe deep burns. combination with breathing protection. minutes (remove contact lenses if easily
possible), then take to a doctor.
Ingestion Abdominal cramps. Vomiting. (Further Do not eat, drink, or smoke during work. Rinse mouth. Do NOT induce vomiting.
see Inhalation). Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. Collect EU classification Unbreakable packaging; put breakable
leaking liquid in sealable containers. Absorb remaining liquid F Symbol packaging into closed unbreakable
in sand or inert absorbent and remove to safe place. Do NOT T Symbol container. Do not transport with food and
wash away into sewer. Personal protection: complete R: 45-11-20/21/22 feedstuffs.
protective clothing including self-contained breathing S: 53-45
apparatus. Note: E
UN classification
UN Hazard Class: 6.1
UN Subsidiary Risks: 3
UN Pack Group: I
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-61GTF1-I Fireproof. Provision to contain effluent from fire extinguishing. Separated from food and
feedstuffs.
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2006
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
0238 CHLOROMETHYL METHYL ETHER
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS LIQUID, WITH CHARACTERISTIC ODOUR. The substance can be absorbed into the body by inhalation of its vapour.
Physical dangers Inhalation risk
The vapour is heavier than air and may travel along the ground; distant A harmful contamination of the air can be reached rather quickly on
ignition possible. evaporation of this substance at 20/C.
Chemical dangers Effects of short-term exposure
On combustion, forms toxic gases and vapours (phosgene - see ICSC The substance is corrosive to the eyes, the skin and the respiratory tract.
0007 and hydrogen chloride - see ICSC 0163). The substance Inhalation of the substance may cause lung oedema (see Notes).
decomposes on contact with water producing hydrogen chloride and
formaldehyde (see ICSC 0275). Attacks many metals in presence of Effects of long-term or repeated exposure
water. Lungs may be affected by repeated or prolonged exposure. This
substance is carcinogenic to humans.
Occupational exposure limits
TLV: A2 (suspected human carcinogen); (ACGIH 2004).
MAK: Carcinogen category: 1 (DFG 2005). See Notes
PHYSICAL PROPERTIES
Boiling point: 59/C Relative vapour density (air = 1): 2.8
Melting point: -104/C Relative density of the vapour/air-mixture at 20/C (air = 1): about 1.4
Relative density (water = 1): 1.06 Flash point: -17.8/C
Solubility in water: decomposes Auto-ignition temperature: see Notes
Vapour pressure, kPa at 20/C: about 25.3 Explosive limits, vol% in air: see Notes
ENVIRONMENTAL DATA
NOTES
The auto-ignition temperature is unknown in literature.
Explosive limits are unknown in literature.
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort. Rest and
medical observation are therefore essential.
Do NOT use in the vicinity of a fire or a hot surface, or during welding.
Check for peroxides prior to distillation; eliminate if found.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, EU classification, Emergency Response.
MAK carcinogenicity category applies to the technical product containing up to 7% impurities of dichlorodimethyl ether.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
漏IPCS 2006
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