Material Safety Data Sheet
Revision Issued: 7/10/2007 Supercedes: 10/16/2003 First Issued: 1/08/1993
Section I - Chemical Product And Company Identification
Product Name: Dichloromethane
CAS Number: 75-09-2 HBCC MSDS No. CM08000
1675 No. Main Street, Orange, California 92867
Telephone No: 714-998-8800 | Outside Calif: 800-821-7234 | Chemtrec: 800-424-9300
Section II - Composition/Information On Ingredients
Exposure Limits (TWAs) in Air
Chemical Name CAS Number % ACGIH TLV OSHA PEL STEL
Dichloromethane 75-09-2 100 50 ppm 25 ppm 125 ppm
Section III - Hazard Identification
Routes of Exposure: Dichloromethane can affect the body if it is inhaled or swallowed,
or if it comes in contact with the eyes or skin.
Summary of Acute Health Hazards
Ingestion: Can cause gastrointestinal irritation, nausea, vomiting, and diarrhea.
Inhalation: Excessive inhalation of vapors can cause nasal and respiratory irritation,
Central nervous system effects including dizziness, weakness, fatigue, nausea, headache
and possible unconsciousness, and even death.
Skin: Can cause irritation.
Eyes: Can cause irritation.
Summary of Chronic Health Hazards: Exposure to methylene chloride can raise the
level of carbon monoxide in the blood causing cardiovascular stress. Dichloromethane
has been shown to cause cancer in laboratory animals. It has been listed as a possible
carcinogen by IARC and NTP. There is adequate information to associate methylene
chloride exposure during pregnancy with harm to the fetus.
Effects of Overexposure: Overexposure to this material (or its components) has
apparently been found to cause the following effects in laboratory animals: Liver
Abnormalities, Lung Damage, Kidney Damage. Narcotic in high concentrations.
Medical Conditions Generally Aggravated by Exposure: N/A
Section IV - First Aid Measures
Ingestion: DO NOT INDUCE VOMITING. Drink large amounts of water to dilute acid.
GET PROMPT MEDICAL ATTENTION.
Product Name: Dichloromethane 1 of 4
Inhalation: If inhaled, move to fresh air. If breathing has stopped, give artificial
respiration. If breathing is difficult, give oxygen. GET PROMPT MEDICAL
ATTENTION.
Skin: Promptly flush with plenty of water for at least 15 minutes. Remove contaminated
clothing.
Eyes: Wash eyes immediately with large amounts of water, for at least 15 minutes, lifting
the lower and upper lids. Contact lenses should not be worn when working with this
material. GET PROMPT MEDICAL ATTENTION.
Section V - Fire Fighting Measures
Flash Point: N/A Autoignition Temperature: 1033潞F, 556潞C
Lower Explosive Limit: 13.0% Upper Explosive Limit: 23.0%
Unusual Fire and Explosion Hazards: This product is not flammable in air. Forms
flammable vapor-air mixtures in lager volumes and may be an explosion hazard in a
confined space. Combustion may produce irritants and toxic gases. Combustion
byproducts may include hydrogen chloride and phosgene.
Extinguishing Media: Water Fog, Foam, Carbon Dioxide, or Dry Chemical. Use water
spray to keep fire-exposed containers cool.
Special Firefighting Procedures: Wear self-contained breathing apparatus with a full
facepiece operated in the positive pressure demand mode when fighting fires.
Section VI - Accidental Release Measures
Small Spill: Absorb liquid on paper, vermiculate, floor absorbent, or other absorbent
material and transfer to hood.
Large Spill: Persons not wearing protective equipment should be excluded from area of
spill until clean-up has been completed. Stop spill at source. Dike area of spill to prevent
spreading, pump liquid to salvage tank. Remaining liquid may be taken up on sand, clay,
earth, floor absorbent, or other absorbent material and shoveled into containers.
Section VII - Handling and Storage
Keep away from incompatible substances. Store in a well-ventilated, properly drained
area out of the sun. Avoid storage on wood floors or near wooden walls, etc. Diking of
storage tanks if recommended. Protect from physical damage.
Other Precautions: Contaminated absorbent may be deposited in a landfill in
accordance with local, state, and federal regulations.
Section VIII - Exposure Controls/Personal Protection
Respiratory Protection: If workplace exposure limits(s) of product or any component is
exceeded (see section IX), a NIOSH/MSHA approved air supplied respirator is advised in
absence of proper environmental control. OSHA regulations also permit other
NIOSH/MSHA respirators (negative pressure type) under specified conditions (see your
safety equipment supplier), engineering or administrative controls should be implemented
to reduce exposure.
The OSHA acceptable ceiling concentration is 1000 ppm. The acceptable maximum peak
above the acceptance ceiling concentration for an 2-hour shift is 200 ppm for a maximum
duration of 5 minutes in any 2 hours. NIOSH recommends a limit of 75 ppm, 8-hour
Product Name: Dichloromethane 2 of 4
TWA; 500 ppm 15 minute ceiling. Ventilation: Provide sufficient mechanical (general
and/or local exhaust) ventilation to maintain exposure below TLV(s).
Protective Clothing: Wear resistant gloves such as:, Polyvinyl Alcohol. To prevent
repeated or prolonged skin contact, wear impervious clothing and boots.
Eye Protection: Chemical splash goggles in compliance with OSHA regulations are
advised; However, OSHA regulations also permit other type safety glasses. (Consult your
safety equipment supplier)
Other Protective Clothing or Equipment: N/A
Work/Hygienic Practices: Employees who handle dichloromethane should wash their
hands before eating, smoking, or using toilet facilities.
Section IX - Physical and Chemical Properties
Physical State: Liquid pH: N/A
Melting Point/Range: - 142潞F, -97潞C Boiling Point/Range: 104掳F, 40潞C
Appearance/Color/Odor: Colorless volatile liquid with sweet odor like chloroform.
Solubility in Water: N/A Vapor Pressure(mmHg): 350 (mmHg) @ 20掳C
Specific Gravity(Water=1): 1.33 Molecular Weight: 84.93
Vapor Density(Air=1): 2.93 % Volatiles: 100
How to detect this compound : N/A
Section X - Stability and Reactivity
Stability: Stable Hazardous Polymerization: Will not occur
Conditions to Avoid: Contact with Materials to Avoid: Aluminum. Reacts violently
Aluminum with active metals.
Hazardous Decomposition Products: N/A
Section XI - Toxicological Information
N/A
Section XII - Ecological Information
N/A
Section XIII - Disposal Considerations
Small Spill: Allow volatile portion to evaporate in hood. Allow sufficient time for vapors
to completely clear hood duct work. Dispose of remaining material in accordance with
applicable regulations.
Large Spill: Destroy by liquid incineration with off-gas scrubber.
Section XIV - Transport Information
DOT Proper Shipping Name: Dichloromethane
DOT Hazard Class/ I.D. No.: 6.1, UN1593, III
Product Name: Dichloromethane 3 of 4
Section XV - Regulatory Information
WARNING
This product contains a chemical known to the State of California to cause cancer
CERCLA Reportable Quantity: 1000 Pounds (454 kilograms) (85 Gals.)
Electrical Equipment: Class I, Group D
Immediately Dangerous to Life and Health (IDLH): 2,300 ppm
RCRA Code: U080
NFPA Rating: Health - 2; Fire - 1; Reactivity - 0
0=Insignificant 1=Slight 2=Moderate 3=High 4=Extreme
Carcinogenicity Lists: Yes NTP: Yes IARC Monograph: Yes OSHA Regulated: Yes
Section 313 Supplier Notification: This product contains the following toxic
chemical(s) subject to the reporting requirements of SARA TITLE III Section 313 of the
Emergency Planning and Community Right-To Know Act of 1986 and of 40 CFR 372:
CAS # Chemical Name % By Weight
75-09-2 Dichloromethane 100%
Section XVI - Other Information
Synonyms/Common Names: Methylene dichloride, methylene chloride
Chemical Family/Type: Chlorinated Hydrocarbon
Changes Made Since Last Revision: III, V, IX, X, XV
IMPORTANT! Read this MSDS before use or disposal of this product. Pass along the
information to employees and any other persons who could be exposed to the product to
be sure that they are aware of the information before use or other exposure. This MSDS
has been prepared according to the OSHA Hazard Communication Standard [29 CFR
1910.1200]. The MSDS information is based on sources believed to be reliable.
However, since data, safety standards, and government regulations are subject to change
and the conditions of handling and use, or misuse are beyond our control, Hill Brothers
Chemical Company makes no warranty, either expressed or implied, with respect to the
completeness or continuing accuracy of the information contained herein and disclaims
all liability for reliance thereon. Also, additional information may be necessary or helpful
for specific conditions and circumstances of use. It is the user's responsibility to
determine the suitability of this product and to evaluate risks prior to use, and then to
exercise appropriate precautions for protection of employees and others.
Product Name: Dichloromethane 4 of 4
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