**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 593-74-8 |Dimethylmercury | 95 | 209-805-3 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T+ F
Risk Phrases: 11 33 39/27
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Highly flammable. Danger of cumulative effects. Very toxic : danger
of very serious irreversible effects in contact with skin.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. May be fatal if absorbed through the skin.
May cause skin sensitization, an allergic reaction, which becomes
evident upon re-exposure to this material. If absorbed, causes
symptoms similar to those of inhalation. Effects may be delayed. May
cause severe dermatitis and burns.
Ingestion:
May cause irritation of the digestive tract. May cause effects
similar to those for inhalation exposure.
Inhalation:
Inhalation of fumes may cause metal fume fever, which is
characterized by flu-like symptoms with metallic taste, fever,
chills, cough, weakness, chest pain, muscle pain and increased white
blood cell count. Systemic intoxication is cumulative and has been
fatal. May produce numbness and tingling of the lips, hands, and
feet (paresthesia) and ataxia (failure of muscular coordination).
Exposure may produce speech disturbances, constriction of the visual
fields, hearing impairment, and emotional disturbances. Severe
intoxication may produce clonic seizures, (which may be
irreversible), incontinence, spasticity, jerking of the limbs, head,
and shoulders. Severe intoxication may produce emotional
disturbances, hypersalivation, tearing, nausea, vomiting, and
diarrhea or constipation.
Chronic:
Prolonged or repeated skin contact may cause dermatitis. Chronic
inhalation and ingestion may cause effects similar to those of acute
inhalation and ingestion. May cause fetal effects. Chronic exposure
to mercury may cause permanent central nervous system damage,
fatigue, weight loss, tremors, personality changes. Chronic
ingestion may cause accumulation of mercury in body tissues. Chronic
exposure to mercury vapors may produce weakness, fatigue, anorexia,
loss of weight and gastrointestinal disturbances which is
collectively referred to as asthenic-vegetative syndrome or
micromercurialism. Chronic exposure to mercury compounds may produce
immunologic glomerular disease.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
Flush eyes with plenty of water for at least 15 minutes,
occasionally lifting the upper and lower eyelids. Get medical aid
immediately. Do NOT allow victim to rub eyes or keep eyes closed.
Skin:
Get medical aid immediately. Flush skin with plenty of water for at
least 15 minutes while removing contaminated clothing and shoes.
Wash clothing before reuse. Discard contaminated clothing in a manner
which limits further exposure. SPEEDY ACTION IS CRITICAL!
Ingestion:
If victim is conscious and alert, give 2-4 cupfuls of milk or water.
Never give anything by mouth to an unconscious person. Get medical
aid immediately.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh
air immediately. If not breathing, give artificial respiration. If
breathing is difficult, give oxygen.
Notes to Physician:
**** SECTION 5 - FIRE FIGHTING MEASURES ****
General Information:
As in any fire, wear a self-contained breathing apparatus in
pressure-demand, MSHA/NIOSH (approved or equivalent), and full
protective gear. Vapors may form an explosive mixture with air.
During a fire, irritating and highly toxic gases may be generated by
thermal decomposition or combustion. Use water spray to keep
fire-exposed containers cool. Containers may explode in the heat of
a fire. Flammable liquid and vapor. Vapors may be heavier than air.
They can spread along the ground and collect in low or confined
areas. Containers may explode when heated.
Extinguishing Media:
For small fires, use dry chemical, carbon dioxide, water spray or
alcohol-resistant foam. For large fires, use water spray, fog, or
alcohol-resistant foam. Use water spray to cool fire-exposed
containers. Water may be ineffective. Do NOT use straight streams of
water.
**** SECTION 6 - ACCIDENTAL RELEASE MEASURES ****
General Information: Use proper personal protective equipment as indicated
in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth),
then place in suitable container. Remove all sources of ignition.
Provide ventilation. A vapor suppressing foam may be used to reduce
vapors. Water spray may reduce vapor but may not prevent ignition in
closed spaces.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Ground and bond containers when
transferring material. Use spark-proof tools and explosion proof
equipment. Do not get in eyes, on skin, or on clothing. Empty
containers retain product residue, (liquid and/or vapor), and can be
dangerous. Keep container tightly closed. Keep away from heat,
sparks and flame. Do not ingest or inhale. Use only in a chemical
fume hood. Do not pressurize, cut, weld, braze, solder, drill, grind,
or expose empty containers to heat, sparks or open flames.
Storage:
Keep away from heat, sparks, and flame. Keep away from sources of
ignition. Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use only under a chemical fume hood.
Exposure Limits
CAS# 593-74-8:
United States OSHA: 0.4 mg/m3 Ceiling (listed under Mercury, alk
compounds).
Belgium - TWA: (listed as mercury, alkyl compounds): 0.01 mg/m3 V
(as Hg)
Belgium - STEL: (listed as mercury, alkyl compounds): 0.03 mg/m3
(as Hg)
France - VME: (listed as mercury, alkyl compounds): 0.01 mg/m3 VM
(as Hg)
Germany: (listed as mercury, alkyl compounds): 0.01 mg/m3 VME (as
Malaysia: (listed as mercury, alkyl compounds): 0.01 mg/m3 TWA (a
Hg)
Netherlands: (listed as mercury, alkyl compounds): 0.02 mg/m3 STE
(as Hg)
Netherlands: (listed as mercury, alkyl compounds): 0.01 mg/m3 MAC
Hg)
Spain: (listed as mercury, alkyl compounds): 0.01 mg/m3 VLA-ED (a
Hg)
Spain: (listed as mercury, alkyl compounds): 0.03 mg/m3 VLA-EC (a
Hg)
Personal Protective Equipment
Eyes:
Wear chemical splash goggles. Wear appropriate
protective eyeglasses or chemical safety goggles as
described by OSHA's eye and face protection
regulations in 29 CFR 1910.133 or European Standard
EN166.
Skin:
Wear plastic-laminate glove (SilverShield) alone or
in combination with other gloves.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure. Wear an impervious apron.
Respirators:
Follow the OSHA respirator regulations found in 29
CFR 1910.134 or European Standard EN 149. Use a
NIOSH/MSHA or European Standard EN 149 approved
respirator if exposure limits are exceeded or if
irritation or other symptoms are experienced.
**** SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES ****
Physical State: Liquid
Color: colorless
Odor: faint sweet odor
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 93 - 94 deg C
Freezing/Melting Point: -43 deg C
Autoignition Temperature: Not available.
Flash Point: 5 deg C ( 41.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: N/A
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density: 2.9610g/cm3
Molecular Formula: C2H6Hg
Molecular Weight: 230.67
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable at room temperature in closed containers under normal storage
and handling conditions.
Conditions to Avoid:
Incompatible materials, ignition sources, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, irritating and toxic fumes and gases, carbon
dioxide, toxic fumes of mercury.
Hazardous Polymerization: Has not been reported
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 593-74-8: OW3010000
LD50/LC50:
Not available.
Carcinogenicity:
Dimethylmercury -
Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: FLAMMABLE LIQUID, TOXIC, N.O.S.*
Hazard Class: 3 (6.1)
UN Number: 1992
Packing Group: I
IMO
Shipping Name: FLAMMABLE LIQUID, TOXIC, N.O.S.
Hazard Class: 3.2 (6.1)
UN Number: 1992
Packing Group: I
RID/ADR
Shipping Name: FLAMMABLE LIQUID, TOXIC, N.O.S.
Hazard Class: 3 (6.1)
UN Number: 1992
Packing group: I
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T+ F
Risk Phrases:
R 11 Highly flammable.
R 33 Danger of cumulative effects.
R 39/27 Very toxic : danger of very serious
irreversible effects in contact with skin.
Safety Phrases:
S 9 Keep container in a well-ventilated place.
S 13 Keep away from food, drink and animal feeding
stuffs.
S 16 Keep away from sources of ignition - No
smoking.
S 28A After contact with skin, wash immediately with
plenty of water.
S 33 Take precautionary measures against static
discharges.
S 36 Wear suitable protective clothing.
S 45 In case of accident or if you feel unwell, seek
medical advice immediately (show the label where
possible).
WGK (Water Danger/Protection)
CAS# 593-74-8: No information available.
Canada
CAS# 593-74-8 is listed on Canada's NDSL List.
CAS# 593-74-8 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 593-74-8 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 8/07/1998 Revision #4 Date: 2/09/2005
The information above is believed to be accurate and represents the best
information currently available to us. However, we make no warranty of
merchantability or any other warranty, express or implied, with respect to
such information, and we assume no liability resulting from its use. Users
should make their own investigations to determine the suitability of the
information for their particular purposes. In no way shall the company be
liable for any claims, losses, or damages of any third party or for lost
profits or any special, indirect, incidental, consequential or exemplary
damages, howsoever arising, even if the company has been advised of
the possibility of such damages.
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