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DICHLOROMETHANEICSC: 0058
April 2017
CAS #: 75-09-2Methylene chloride
DCM
UN #: 1593
EINECS #: 200-838-9

  ACUTE HAZARDS PREVENTION FIRE FIGHTING
FIRE & EXPLOSION Flammable under specific conditions. See Notes. Gives off irritating or toxic fumes (or gases) in a fire.  Explosive under specific conditions. See Notes. Heating will cause rise in pressure with risk of bursting. Risk of fire and explosion.  NO contact with incompatible substances. See Chemical Dangers. See Notes.  See Notes.  In case of fire in the surroundings, use appropriate extinguishing media.  In case of fire: keep drums, etc., cool by spraying with water. 

 AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! 
  SYMPTOMS ACUTE HAZARDS FIRST AID
Inhalation Dizziness. Drowsiness. Headache. Nausea. Weakness. Unconsciousness.  Use ventilation, local exhaust or breathing protection.  Fresh air, rest. Administration of oxygen may be needed. Artificial respiration may be needed. Refer immediately for medical attention. 
Skin MAY BE ABSORBED! Dry skin. Redness. Burning sensation.  Protective gloves. Protective clothing.  Wear protective gloves when administering first aid. Remove contaminated clothes. Rinse and then wash skin with water and soap. 
Eyes Pain. Redness.  Wear safety spectacles or eye protection in combination with breathing protection.  First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention. 
Ingestion Abdominal pain. Further see Inhalation.  Do not eat, drink, or smoke during work.  Rinse mouth. Do NOT induce vomiting. Administration of oxygen may be needed. Refer immediately for medical attention. 

SPILLAGE DISPOSAL CLASSIFICATION & LABELLING
Evacuate danger area! Consult an expert! Personal protection: self-contained breathing apparatus. Ventilation. Collect leaking liquid in sealable containers. Absorb remaining liquid in sand or inert absorbent. Then store and dispose of according to local regulations. 

According to UN GHS Criteria

skull;toxiccancer;health haz
DANGER
Harmful if swallowed
Fatal if inhaled
Causes skin and eye irritation
May cause drowsiness or dizziness
Causes damage to central nervous system, blood, liver, the heart and lungs
May be harmful if swallowed and enters airways
Causes damage to the central nervous system through prolonged or repeated exposure if inhaled
May cause cancer 

Transportation
UN Classification
UN Hazard Class: 6.1; UN Pack Group: III 

STORAGE
Separated from food and feedstuffs and incompatible materials. See Chemical Dangers. Well closed. Cool. Ventilation along the floor. 
PACKAGING
Do not transport with food and feedstuffs.
Unbreakable packaging.
Put breakable packaging into closed unbreakable container. 
DICHLOROMETHANE ICSC: 0058
PHYSICAL & CHEMICAL INFORMATION

Physical State; Appearance
VERY VOLATILE COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. 

Physical dangers
The vapour is heavier than air. As a result of flow, agitation, etc., electrostatic charges can be generated. 

Chemical dangers
Decomposes on heating or on burning and on contact with hot surfaces. This produces toxic and corrosive fumes including hydrogen chloride (see ICSC 0163), phosgene (see ICSC 0007) and carbon monoxide (see ICSC 0023). Reacts violently with strong oxidants, strong bases and metals such as aluminium powder and magnesium powder. This generates fire and explosion hazard. Attacks some forms of plastic, rubber and coatings. 

Formula: CH2Cl2
Molecular mass: 84.9
Boiling point: 40°C
Melting point: -97°C
Relative density (water = 1): 1.3 (20°C)
Solubility in water, g/100ml at 20°C: 1.3 (moderate)
Vapour pressure, kPa at 20°C: 47.4
Relative vapour density (air = 1): 2.9
Relative density of the vapour/air-mixture at 20°C (air = 1): 1.9
Auto-ignition temperature: 605°C
Explosive limits, vol% in air: 13-22
See Notes.
Octanol/water partition coefficient as log Pow: 1.25
Viscosity: 0.32 mm²/s at 20°C 


EXPOSURE & HEALTH EFFECTS

Routes of exposure
The substance can be absorbed into the body by inhalation, by ingestion and through the skin. 

Effects of short-term exposure
The substance is irritating to the eyes, skin and respiratory tract. If swallowed the substance may cause vomiting and could result in aspiration pneumonitis. The substance may cause effects on the central nervous system, blood, liver, heart and lungs. Exposure could cause carbon monoxide poisoning. This may result in impaired functions. Exposure at high concentrations could cause lowering of consciousness and death. The effects may be delayed. 

Inhalation risk
A harmful contamination of the air can be reached very quickly on evaporation of this substance at 20°C. 

Effects of long-term or repeated exposure
The substance may have effects on the central nervous system. This substance is probably carcinogenic to humans. 


Occupational exposure limits
TLV: 50 ppm as TWA; A3 (confirmed animal carcinogen with unknown relevance to humans); (skin).
MAK: 180 mg/m3, 50 ppm; peak limitation category: II(2); skin absorption (H); carcinogen category: 5; pregnancy risk group: B.
EU-OEL: 353 mg/m3, 100 ppm as TWA; 706 mg/m3, 200 ppm as STEL; (skin) 

ENVIRONMENT
 

NOTES
Do NOT use in the vicinity of a fire or a hot surface, or during welding.
The odour warning when the exposure limit value is exceeded is insufficient.
Depending on the degree of exposure, periodic medical examination is suggested. 

ADDITIONAL INFORMATION
  EC Classification
Symbol: Xn; R: 40; S: (2)-23-24/25-36/37 

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    See Also:
       Toxicological Abbreviations
       Dichloromethane (FAO Nutrition Meetings Report Series 48a)
       Dichloromethane (WHO Food Additives Series 30)
       DICHLOROMETHANE (JECFA Evaluation)
       Dichloromethane (IARC Summary & Evaluation, Volume 71, 1999)