Product ID:METHYL IODIDE
MSDS Date:Jan 24 1989
MSDS Number: EEEJP
Kit Part:=== Responsible Party ===
Company Name:MATHESON TRI-GAS, INC.
Address:959 ROUTE 46 EAST
City:PARSIPPANY
State:NJ
ZIP:07054-0624
Country:US
Info Phone Num:(USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)
780-471-4036
Chemtrec Ind/Phone:18004249300

Telephone: (USA) 973-257-1100, (WHITBY) 905-668-3570, (EDMONTON)

METHYL IODIDE

CAS: 74-88-4

Fraction By Weight: 100.0%

Reports of Carcinogenicity:NTP:No IARC:No OSHA:No
Health Hazards Acute and Chronic:INHALATION: SHORT TERM EXPOSURE:
irritation, nausea, vomiting, diarrhea, headache, drowsiness,
symptoms of drunkenness, blurred vision, lung congestion,
convulsions, coma, death LONG TERM EXPOSURE: visual disturbances
SKIN CONTACT: SHORT TERM EXPOSURE: irritation, blisters, rash,
symptoms of drunkenness LONG TERM EXPOSURE: burns EYE CONTACT:
SHORT TERM EXPOSURE: irritation (possibly severe) LONG TERM
EXPOSURE: same as effects reported in short term exposure
INGESTION: SHORT TERM EXPOSURE: vomiting, digestive disorders,
symptoms of drunkenness LONG TERM EXPOSURE: no information is
available
Medical Cond Aggravated by Exposure:

First Aid: INHALATION: If adverse effects occur, remove to
uncontaminated area. Give artificial respiration if not breathing.
If breathing is difficult, oxygen should be administered by
qualified personnel. Get immediate medical attention. SKIN CONTACT:
Wash skin with soap and water for at least 15 minutes while
removing contaminated clothing and shoes. Get medical attention, if
needed. Thoroughly clean and dry contaminated clothing and shoes
before reuse. EYE CONTACT: Flush eyes with plenty of water for at
least 15 minutes. Then get immediate medical attention. INGESTION:
If swallowed, drink plenty of water, do NOT induce vomiting. Get
immediate medical attention. Induce vomiting only at the
instructions of a physician. Do not give anything by mouth to
unconscious or convulsive person. NOTE TO PHYSICIAN: For
inhalation, consider oxygen. For ingestion, consider gastric
lavage, activated charcoal slurry and catharsis.

Flash Point:No data available.
Extinguishing Media:regular dry chemical, regular foam, water Large
fires: Use regular foam or flood with fine water spray.
Fire Fighting Procedures:Move container from fire area if it can be
done without risk. Fight large fires from a protected location or
safe distance. Stay away from the ends of tanks. Dike for later
disposal. Do not scatter spilled material with high-pressure water
streams. Do not attempt to extinguish fire unless flow of material
can be stopped first. Use extinguishing agents appropriate for
surrounding fire. Flood with fine water spray. Cool containers with
water spray until well after the fire is out. Apply water from a
protected location or from a safe distance. Avoid inhalation of
material or combustion by-products. Stay upwind and keep out of low
areas. Consider downwind evacuation if material is leaking.
Unusual Fire/Explosion Hazard:Negligible fire hazard.

Neutralizing Agent:

Handling and Storage Precautions:Store and handle in accordance with
all current regulations and standards. Keep separated from
incompatible substances. Store in a tightly closed container. Avoid
contact with water or moisture.
Other Precautions:

Respiratory Protection:The following respirators and maximum use
concentrations are drawn from NIOSH and/or OSHA. At any detectable
concentration - Any self-contained breathing apparatus that has a
full facepiece and is operated in a pressure-demand or other
positive-pressure mode. Any supplied-air respirator with full
facepiece and operated in a pressure-demand or other
positive-pressure mode in combination with a separate escape
supply. Escape - Any air-purifying respirator with a full facepiece
and an organic vapor canister. Any appropriate escape-type,
self-contained breathing apparatus. For Unknown Concentrations or
Immediately Dangerous to Life or Health - Any supplied-air
respirator with full facepiece and operated in a pressure-demand or
other positive-pressure mode in combination with a separate escape
supply. Any self-contained breathing apparatus with a full
facepiece.
Ventilation:Provide local exhaust or process enclosure ventilation
system. Ensure compliance with applicable exposure limits.
Protective Gloves:Wear appropriate chemical resistant gloves.
Eye Protection:Wear splash resistant safety goggles with a faceshield.
Provide an emergency eye wash fountain and quick drench shower in
the immediate work area.
Other Protective Equipment:Wear appropriate chemical resistant
clothing.
Supplemental Safety and Health
METHYL IODIDE: 5 ppm (28 mg/m3) OSHA TWA (skin) 2 ppm (12 mg/m3) OSHA
TWA (skin) (vacated by 58 FR 35338, June 30, 1993) 2 ppm ACGIH TWA
(skin) 2 ppm (10 mg/m3) NIOSH recommended TWA 10 hour(s) (skin)

Boiling Pt:108 F (42 C)
Melt/Freeze Pt:-87 F (-66 C)
Vapor Pres:400 mmHg @ 25 C
Vapor Density:4.9
Spec Gravity:2.279
pH:Not available
Evaporation Rate & Reference:Not available
Solubility in Water:2%
Appearance and Odor:PHYSICAL STATE:liquid APPEARANCE:translucent
APPEARANCE:ANCE: changes color on exposure to light and moisture
COLOR:colorless ODOR:sweet odor
Corrosion Rate:

Stability Indicator/Materials to Avoid:Stable at normal temperatures
and pressure.
Stability Condition to Avoid:Avoid heat, flames, sparks and other
sources of ignition. Containers may rupture or explode if exposed
to heat.
Hazardous Decomposition Products:Thermal decomposition products: acid
halides, iodinated compounds, oxides of carbon Thermal
decomposition products: acid halides, iodinated compounds, oxides
of carbon
Conditions to Avoid Polymerization:Will not polymerize.

Waste Disposal Methods:Dispose in accordance with all applicable
regulations. Subject to disposal regulations: U.S. EPA 40 CFR 262.
Hazardous Waste Number(s): U138.

Toxicological Information:METHYL IODIDE: IRRITATION DATA: 1 gm/10
minute(s) skin-human mild; 1 gm/30 minute(s) skin-rat mild; 500 mg
skin-rabbit severe; 100 mg eyes-rabbit severe TOXICITY DATA: 1300
mg/m3/4 hour(s) inhalation-rat LC50; 800 mg/kg skin-guinea pig
LD50; 76 mg/kg oral-rat LD50 (IARC) CARCINOGEN STATUS: IARC: Human
No Adequate Data, Animal Limited Evidence, Group 3 LOCAL EFFECTS:
Irritant: inhalation, skin, eye ACUTE TOXICITY LEVEL: Toxic:
inhalation, dermal absorption, ingestion TARGET ORGANS: central
nervous system MEDICAL CONDITIONS AGGRAVATED BY EXPOSURE: hormonal
disorders TUMORIGENIC DATA: Available. MUTAGENIC DATA: Available.
ADDITIONAL DATA: May cross the placenta. May be excreted in breast
milk. May cross react with similar compounds.

Disclaimer (provided with this information by the compiling agencies):
This information is formulated for use by elements of the Department
of Defense. The United States of America in no manner whatsoever,
expressly or implied, warrants this information to be accurate and
disclaims all liability for its use. Any person utilizing this
document should seek competent professional advice to verify and
assume responsibility for the suitability of this information to their
particular situation.

Ecological:Not available

Transport Information:U.S. DOT 49 CFR 172.101: PROPER SHIPPING NAME:
Methyl iodide ID NUMBER: UN2644 HAZARD CLASS OR DIVISION: 6.1
PACKING GROUP: I LABELING REQUIREMENTS: Poison QUANTITY
LIMITATIONS: PASSENGER AIRCRAFT OR RAILCAR: Forbidden CARGO
AIRCRAFT ONLY: Forbidden

SARA Title III Information: SARA TITLE III SECTION 302 EXTREMELY
HAZARDOUS SUBSTANCES (40 CFR 355.30): Not regulated. SARA TITLE
III SECTION 304 EXTREMELY HAZARDOUS SUBSTANCES (40 CFR 355.40): Not
regulated. SARA TITLE III SARA SECTIONS 311/312 HAZARDOUS
CATEGORIES (40 CFR 370.21): ACUTE: Yes CHRONIC: No FIRE: No
REACTIVE: No SUDDEN RELEASE: No SARA TITLE III SECTION 313 (40
CFR 372.65): METHYL IODIDE
Federal Regulatory Information:CERCLA SECTIONS 102a/103 HAZARDOUS
SUBSTANCES (40 CFR 302.4): METHYL IODIDE: 100LBSRQ OSHA PROCESS
SAFETY (29CFR1910.119): METHYL IODIDE: 7500LBSTQ
State Regulatory Information: California Proposition 65: Known to the
state of California to cause the following: METHYL IODIDE Cancer
(Apr 01, 1988)