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5-Ethyl-2-methylpyridine 104-90-5 MSDS
Name: 5-Ethyl-2-methyl-pyridine 98% Material Safety Data Sheet
Synonym: 5-Ethyl-2-picoline; Aldehydecollidine; Aldehydine; 3-Ethyl-6-Methylpyridine; 2-Methyl-5-ethylpyridine; 6-Methyl-3-ethylpyridine
CAS: 104-90-5
Section 1 - Chemical Product   MSDS Name:5-Ethyl-2-methyl-pyridine 98% Material Safety Data Sheet
Synonym:5-Ethyl-2-picoline; Aldehydecollidine; Aldehydine; 3-Ethyl-6-Methylpyridine; 2-Methyl-5-ethylpyridine; 6-Methyl-3-ethylpyridine

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
104-90-5 5-Ethyl-2-methyl-pyridine 98 203-250-0
Hazard Symbols: XN C
Risk Phrases: 21/22 34

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Harmful in contact with skin and if swallowed. Causes burns.Hygroscopic (absorbs moisture from the air).Corrosive.
Potential Health Effects
Eye:
Causes severe eye irritation and possible burns.
Skin:
Harmful if absorbed through the skin. Causes severe skin irritation and possible burns.
Ingestion:
Harmful if swallowed. May cause burns to the digestive tract.
Ingestion may cause weakness, ataxia (failure of muscular coordination), diarrhea, and unconsciousness.
Inhalation:
Causes respiratory tract irritation. May cause burns to the respiratory tract.
Chronic:
Laboratory experiments have resulted in mutagenic effects.

Section 4 - FIRST AID MEASURES
  Eyes: Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed. Extensive 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. Destroy contaminated shoes.
Ingestion:
Do not induce vomiting. 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 breathing is difficult, give oxygen. Do NOT use mouth-to-mouth resuscitation. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
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. Water runoff can cause environmental damage. Dike and collect water used to fight fire. 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.
Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Combustible liquid. 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:
This material is lighter than water and insoluble in water. The fire could easily be spread by the use of water in an area where the water cannot be contained. Do NOT get water inside containers. Cool containers with flooding quantities of water until well after fire is out. Use water spray, dry chemical, carbon dioxide, or appropriate foam.

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. Clean up spills immediately, observing precautions in the Protective Equipment section. Use water spray to disperse the gas/vapor. Remove all sources of ignition.
Provide ventilation. Stop leak only if you can do so without risk.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Use only in a well-ventilated area.
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 get on skin or in eyes. Do not ingest or inhale. Discard contaminated shoes. 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. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Corrosives area. Store protected from moisture. Do not store in copper or copper alloy storage vessels.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 104-90-5: Russia: 2 mg/m3 TWA Personal Protective Equipment Eyes: 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 appropriate protective gloves to prevent skin exposure. Rubber and plastic gloves should not be relied upon to prevent skin contact.
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
Color: colorless
Odor: aromatic odor
pH: Not available.
Vapor Pressure: 1.4 mm Hg @ 25 C
Viscosity: Not available.
Boiling Point: 178 deg C @ 760.00mm Hg
Freezing/Melting Point: -70.9 deg C
Autoignition Temperature: 504 deg C ( 939.20 deg F)
Flash Point: 70 deg C ( 158.00 deg F)
Explosion Limits, lower: 1.1 %
Explosion Limits, upper: 6.6 %
Decomposition Temperature:
Solubility in water: practically insoluble
Specific Gravity/Density: .9190g/cm3
Molecular Formula: C8H11N
Molecular Weight: 121.18

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Volatile in steam.
Conditions to Avoid:
Incompatible materials, ignition sources, moisture, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, acids, strong bases, chloroformates, acid chlorides, moisture.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide, nitrogen.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 104-90-5: TJ6825000 LD50/LC50:
CAS# 104-90-5: Dermal, guinea pig: LD50 = 2500 mg/kg; Inhalation, rat: LC50 = 540 ppm/4H; Oral, mouse: LD50 = 282 mg/kg; Oral, rat: LD50 = 1300 uL/kg; Skin, rabbit: LD50 = 566 uL/kg.
Carcinogenicity:
5-Ethyl-2-methyl-pyridine - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
  Ecotoxicity:
Fish: Fathead Minnow: 81.1 mg/L; 96 Hr.; Flow-through bioassayFish: Fathead Minnow: 69.8 mg/L; 96 Hr.; Flow-through bioassayThe estimated Koc range of 25-540 was calculated using the regression-derived equation. This value suggests that 5-Ethyl-2-methyl-pyridine will be highly mobile in soil and should not partition from the water column to organic matter contained in sediments and suspended solids. Based on a pKa of 6.40, this product and its conjugate acid will exist among most environmental media in vaying proportions that are pH dependent. The estimated log BCF values = 0.49 and 1.66. These values indicate that 5-Ethyl-2-methyl-pyridine should not

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: 2-METHYL-5-ETHYLPYRIDINE
Hazard Class: 6.1
UN Number: 2300
Packing Group: III
IMO
Shipping Name: 2-METHYL-5-ETHYLPYRIDINE
Hazard Class: 6.1
UN Number: 2300
Packing Group: III
RID/ADR
Shipping Name: 2-METHYL-5-ETHYLPYRIDINE
Hazard Class: 6.1
UN Number: 2300
Packing group: III

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XN C
Risk Phrases:
R 21/22 Harmful in contact with skin and if
swallowed.
R 34 Causes burns.
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 104-90-5: 2
Canada
CAS# 104-90-5 is listed on Canada's DSL List.
CAS# 104-90-5 is listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 104-90-5 is listed on the TSCA inventory.


SECTION 16 - ADDITIONAL INFORMATION
N/A

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