Material Safety Data Sheet
Methyl sulfide, 99+%

ACC# 23051
Section 1 - Chemical Product and Company Identification
MSDS Name: Methyl sulfide, 99+%
Catalog Numbers: AC127760000, AC127760010, AC127760025, AC127760100
Synonyms:
Dimethyl sulfide; 2-Thiapropane; Dimethyl monosulfide; DMS; Methyl sulphide; Methyl thioether; Thiobis(methane).
Company Identification:

              Acros Organics N.V.
              One Reagent Lane
              Fair Lawn, NJ 07410
For information in North America, call: 800-ACROS-01
For emergencies in the US, call CHEMTREC: 800-424-9300

Section 2 - Composition, Information on Ingredients

CAS# Chemical Name Percent EINECS/ELINCS
75-18-3 Methyl sulfide >99 200-846-2

Section 3 - Hazards Identification

EMERGENCY OVERVIEW

Appearance: clear colorless liquid. Flash Point: -48 deg C.
Danger! Extremely flammable liquid and vapor. Vapor may cause flash fire. Causes eye, skin, and respiratory tract irritation.
Target Organs: Respiratory system, eyes, skin.


Potential Health Effects
Eye: Causes eye irritation.
Skin: Causes skin irritation.
Ingestion: May cause irritation of the digestive tract.
Inhalation: Causes respiratory tract irritation.
Chronic: No information found.

Section 4 - First Aid Measures


Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid imme diately. Do NOT allow victim to rub eyes or keep eyes closed. Extensiv e irrigation with water is required (at least 30 minutes).
Skin: Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Ingestion: Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation: Get medical aid immediately. Remove from exposure and move to fresh air immediately. If breathing is difficult, give oxygen. Do not use mouth-to-mouth resuscitation if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
Notes to Physician: Treat symptomatically and supportively.

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. Use water spray to keep fire-exposed containers cool. Extremely flammable liquid and vapor. Vapor may cause flash fire. Vapors are heavier than air and may travel to a source of ignition and flash back. Vapors can spread along the ground and collect in low or confined areas. This liquid floats on water and may travel to a source of ignition and spread fire.
Extinguishing Media: Use foam, dry chemical, or carbon dioxide. Water may be ineffective. Do NOT use straight streams of water.
Flash Point: -48 deg C ( -54.40 deg F)
Autoignition Temperature: 205 deg C ( 401.00 deg F)
Explosion Limits, Lower:2.20 vol %
Upper: 19.70 vol %
NFPA Rating: (estimated) Health: 2; Flammability: 3; Instability: 0

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. Use a spark-proof tool. Provide ventilation.

Section 7 - Handling and Storage


Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep away from heat, sparks and flame. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Use only with adequate ventilation. Avoid breathing vapor or mist.
Storage: Keep away from heat, sparks, and flame. Store in a tightly closed container. Flammables-area. Store in a cool, dry area away from incompatible substances.

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
Chemical Name ACGIH NIOSH OSHA - Final PELs
Methyl sulfide 10 ppm TWA none listed none listed

OSHA Vacated PELs: Methyl sulfide: No OSHA Vacated PELs are listed for this chemical.
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: A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - Physical and Chemical Properties


Physical State: Liquid
Appearance: clear colorless
Odor: stench
pH: Not available.
Vapor Pressure: 502 mm Hg @ 25 deg C
Vapor Density: 2.14 (air=1)
Evaporation Rate:Not available.
Viscosity: Not available.
Boiling Point: 38 deg C @ 760 mm Hg
Freezing/Melting Point:-98 deg C
Decomposition Temperature:450 deg C
Solubility: Insoluble.
Specific Gravity/Density:.840 g/ml
Molecular Formula:(CH3)2S
Molecular Weight:62.13

Section 10 - Stability and Reactivity


Chemical Stability: Stable under normal temperatures and pressures.
Conditions to Avoid: Ignition sources, excess heat, confined spaces.
Incompatibilities with Other Materials: Strong oxidizing agents.
Hazardous Decomposition Products: Carbon monoxide, oxides of sulfur, carbon dioxide, hydrogen sulfide.
Hazardous Polymerization: Will not occur.

Section 11 - Toxicological Information


RTECS#:      
CAS# 75-18-3: PV5075000
LD50/LC50:
CAS# 75-18-3:
     Draize test, rabbit, eye: 250 ug/24H Severe;
     Draize test, rabbit, skin: 500 mg/24H Mild;
     Inhalation, mouse: LC50 = 31620 ug/m3;
     Inhalation, rat: LC50 = 40250 ppm;
     Oral, mouse: LD50 = 3700 mg/kg;
     Oral, rat: LD50 = 3300 mg/kg;
     Skin, rabbit: LD50 = >5 gm/kg;
.

Carcinogenicity:
CAS# 75-18-3: Not listed by ACGIH, IARC, NTP, or CA Prop 65.

Epidemiology: No information found
Teratogenicity: No information found
Reproductive Effects: No information found
Mutagenicity: No information found
Neurotoxicity: No information found
Other Studies:

Section 12 - Ecological Information


Ecotoxicity: No data available. No information available.
Environmental: Will rapidly biodegrade in both aerobic and anaerobic conditions in soil and water. Not expected to adsorb to suspended solids and sediment in water. Will exist solely in the vapor phase in the atmosphere. Will degrade with photochemically produced hydroxyl radicals in the atmosphere.
Physical: No information available.
Other: No information available.

Section 13 - Disposal Considerations

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste. US EPA guidelines for the classification determination are listed in 40 CFR Parts 261.3. Additionally, waste generators must consult state and local hazardous waste regulations to ensure complete and accurate classification.
RCRA P-Series: None listed.
RCRA U-Series: None listed.

Section 14 - Transport Information

US DOT Canada TDG
Shipping Name: DIMETHYL SULFIDE DIMETHYL SULFIDE
Hazard Class: 3 3
UN Number: UN1164 UN1164
Packing Group: II II
Additional Info:FLASHPOINT -37 C

Section 15 - Regulatory Information

US FEDERAL

TSCA
     CAS# 75-18-3 is listed on the TSCA inventory.
Health & Safety Reporting List
     None of the chemicals are on the Health & Safety Reporting List.
Chemical Test Rules
     None of the chemicals in this product are under a Chemical Test Rule.
Section 12b
     None of the chemicals are listed under TSCA Section 12b.
TSCA Significant New Use Rule
     None of the chemicals in this material have a SNUR under TSCA.
CERCLA Hazardous Substances and corresponding RQs
     None of the chemicals in this material have an RQ.
SARA Section 302 Extremely Hazardous Substances
     None of the chemicals in this product have a TPQ.
SARA Codes
     CAS # 75-18-3: immediate, fire.
Section 313      No chemicals are reportable under Section 313.
Clean Air Act:
     This material does not contain any hazardous air pollutants.
     This material does not contain any Class 1 Ozone depletors.
     This material does not contain any Class 2 Ozone depletors.
Clean Water Act:
     None of the chemicals in this product are listed as Hazardous Substances under the CWA.
     None of the chemicals in this product are listed as Priority Pollutants under the CWA.
     None of the chemicals in this product are listed as Toxic Pollutants under the CWA.
OSHA:
     None of the chemicals in this product are considered highly hazardous by OSHA.
STATE
     CAS# 75-18-3 can be found on the following state right to know lists: New Jersey, Pennsylvania, Massachusetts.

California Prop 65

California No Significant Risk Level: None of the chemicals in this product are listed.

European/International Regulations

European Labeling in Accordance with EC Directives
Hazard Symbols:
     XI F
Risk Phrases:

     R 11 Highly flammable.
     R 36/37/38 Irritating to eyes, respiratory system and skin.

Safety Phrases:

     S 16 Keep away from sources of ignition - No smoking.
     S 26 In case of contact with eyes, rinse immediately with plenty of
     water and seek medical advice.
     S 37/39 Wear suitable gloves and eye/face protection.

WGK (Water Danger/Protection)

     CAS# 75-18-3: 2
Canada - DSL/NDSL
     CAS# 75-18-3 is listed on Canada's DSL List.
Canada - WHMIS
     This product has a WHMIS classification of B2, D2B.
This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the MSDS contains all of the information required by those regulations.
Canadian Ingredient Disclosure List

Section 16 - Additional Information

MSDS Creation Date: 9/02/1997
Revision #6 Date: 9/26/2007

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 event shall Fisher 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 Fisher has been advised of the possibility of such damages.