**** SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS ****
+----------------+--------------------------------------+----------+-----------+
| CAS# | Chemical Name | % | EINECS# |
|----------------|--------------------------------------|----------|-----------|
| 74-88-4 |Iodomethane | >98 | 200-819-5 |
+----------------+--------------------------------------+----------+-----------+
Hazard Symbols: T
Risk Phrases: 21 23/25 37/38 40
**** SECTION 3 - HAZARDS IDENTIFICATION ****
EMERGENCY OVERVIEW
Harmful in contact with skin. Toxic by inhalation and if swallowed.
Irritating to respiratory system and skin. Limited evidence of a
carcinogenic effect.Light sensitive.
Potential Health Effects
Eye:
Causes eye irritation. Vapors cause eye irritation.
Skin:
Causes skin irritation. Harmful if absorbed through the skin.
Ingestion:
Harmful if swallowed. May cause irritation of the digestive tract.
May cause effects similar to those for inhalation exposure.
Inhalation:
Causes respiratory tract irritation.
Chronic:
Chronic inhalation may cause effects similar to those of acute
inhalation. Animal studies have reported the development of tumors.
**** SECTION 4 - FIRST AID MEASURES ****
Eyes:
In case of contact, immediately flush eyes with plenty of water for
at least 15 minutes. Get medical aid.
Skin:
In case of contact, immediately flush skin with plenty of water for
at least 15 minutes while removing contaminated clothing and shoes.
Get medical aid immediately. Wash clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by
medical personnel. Never give anything by mouth to an unconscious
person. Get medical aid.
Inhalation:
POISON material. If inhaled, get medical aid immediately. Remove
victim to fresh air. 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. During a fire, irritating and highly toxic gases
may be generated by thermal decomposition or combustion. Substance
is noncombustible.
Extinguishing Media:
Use extinguishing media most appropriate for the surrounding fire.
**** 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. Avoid runoff into storm sewers and
ditches which lead to waterways. Provide ventilation. Evacuate
unnecessary personnel.
**** SECTION 7 - HANDLING and STORAGE ****
Handling:
Wash thoroughly after handling. Remove contaminated clothing and
wash before reuse. Do not get in eyes, on skin, or on clothing. Do
not breathe vapor. Use only with adequate ventilation or respiratory
protection.
Storage:
Store in a tightly closed container. Store in a cool, dry,
well-ventilated area away from incompatible substances. Store
protected from light.
**** SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ****
Engineering Controls:
Use process enclosure, local exhaust ventilation, or other
engineering controls to control airborne levels below recommended
exposure limits. Facilities storing or utilizing this material should
be equipped with an eyewash facility and a safety shower.
Exposure Limits
CAS# 74-88-4:
United Kingdom, WEL - TWA: 2 ppm TWA; 12 mg/m3 TWA
United Kingdom, WEL - STEL: 6 ppm STEL; 36 mg/m3 STEL
United States OSHA: 5 ppm TWA; 28 mg/m3 TWA
Belgium - TWA: 2 ppm VLE; 12 mg/m3 VLE
France - VME: 2 ppm VME; 12 mg/m3 VME
Germany: 0.3 ppm TWA; 2 mg/m3 TWA
Germany: Skin absorber
Malaysia: 2 ppm TWA; 12 mg/m3 TWA
Netherlands: 2 ppm MAC; 10 mg/m3 MAC
Spain: 2 ppm VLA-ED; 12 mg/m3 VLA-ED
Personal Protective Equipment
Eyes:
Wear chemical splash goggles.
Skin:
Wear appropriate protective gloves to prevent skin
exposure.
Clothing:
Wear appropriate protective clothing to prevent skin
exposure.
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: clear, colorless to pale yellow
Odor: Sweet, ethereal
pH: Not available.
Vapor Pressure: 375 mm Hg @ 20 deg C
Viscosity: Not available.
Boiling Point: 42.5 deg C @ 760 mm Hg
Freezing/Melting Point: -66 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: N/A
Explosion Limits, upper: N/A
Decomposition Temperature: 270 deg C
Solubility in water: 14 g/1000 ml @ 20C
Specific Gravity/Density: 2.28 @ 20C
Molecular Formula: CH3I
Molecular Weight: 141.94
**** SECTION 10 - STABILITY AND REACTIVITY ****
Chemical Stability:
Stable under normal temperatures and pressures. May discolor on
exposure to light. Turns reddish-brown on exposure to light.
Conditions to Avoid:
Light, moisture, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, hydrogen iodide, iodide.
Hazardous Polymerization: Will not occur.
**** SECTION 11 - TOXICOLOGICAL INFORMATION ****
RTECS#:
CAS# 74-88-4: PA9450000
LD50/LC50:
CAS# 74-88-4: Dermal, guinea pig: LD50 = 800 mg/kg; Draize test,
rabbit, eye: 100 mg Severe; Draize test, rabbit, skin: 500 mg Severe;
Inhalation, mouse: LC50 = 5 gm/m3/57M-C; Inhalation, mouse: LC50 =
5000 mg/m3/57M; Inhalation, rat: LC50 = 1300 mg/m3/4H; Oral, rat:
LD50 = 76 mg/kg.
Not available.
Carcinogenicity:
Iodomethane -
California: carcinogen, initial date 4/1/88
Other:
See actual entry in RTECS for complete information.
**** SECTION 12 - ECOLOGICAL INFORMATION ****
Other
No information available.
**** SECTION 13 - DISPOSAL CONSIDERATIONS ****
Dispose of in a manner consistent with federal, state, and local regulations.
**** SECTION 14 - TRANSPORT INFORMATION ****
IATA
Shipping Name: METHYL IODIDE
Hazard Class: 6.1
UN Number: 2644
Packing Group:
IMO
Shipping Name: METHYL IODIDE
Hazard Class: 6.1
UN Number: 2644
Packing Group: I
RID/ADR
Shipping Name: METHYL IODIDE
Hazard Class: 6.1
UN Number: 2644
Packing group: I
USA RQ: CAS# 74-88-4: 100 lb final RQ; 45.4 kg final RQ
**** SECTION 15 - REGULATORY INFORMATION ****
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: T
Risk Phrases:
R 21 Harmful in contact with skin.
R 23/25 Toxic by inhalation and if swallowed.
R 37/38 Irritating to respiratory system and skin.
R 40 Limited evidence of a carcinogenic effect.
Safety Phrases:
S 36/37 Wear suitable protective clothing and
gloves.
S 38 In case of insufficient ventilation, wear
suitable respiratory equipment.
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# 74-88-4: 2
Canada
CAS# 74-88-4 is listed on Canada's DSL List.
CAS# 74-88-4 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 74-88-4 is listed on the TSCA inventory.
**** SECTION 16 - ADDITIONAL INFORMATION ****
MSDS Creation Date: 6/08/1998 Revision #3 Date: 3/18/2003
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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