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Safety Data Sheet (SDS)

SDS #: 511
Revision Date: September 22, 2014
SECTION 1 — CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

Methyl Ethyl Ketone

Flinn Scientific, Inc. P.O. Box 219, Batavia, IL 60510 (800) 452-1261
Chemtrec Emergency Phone Number: (800) 424-9998
Signal Word
DANGER
SECTION 2 — HAZARDS IDENTIFICATION
Hazard class: Flammable liquids (Category 2). Highly flammable liquid and vapor (H225). Keep away from heat, sparks, open flames, and hot surfaces (P210).

Hazard class: Skin and serious eye damage, corrosion or irritation (Category 2, 2A). Causes skin and serious eye irritation (H315+H319).

Hazard class: Acute toxicity, oral and inhalation (Category 5). May be harmful if swallowed or inhaled (H303+333).
Pictograms
SECTION 3 — COMPOSITION, INFORMATION ON INGREDIENTS
Component Name CAS Number Formula Formula Weight Concentration
Methyl ethyl ketone

Synonyms: MEK; 2-Butanone
78-93-3 CH3COC2H5
72.11
SECTION 4 — FIRST AID MEASURES
If exposed or concerned: Get medical advice or attention (P308+P313).
If inhaled: Remove victim to fresh air and keep at rest in a position comfortable for breathing (P304+P340).
If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do so. Continue rinsing (P305+P351+P338). If eye irritation persists eyes: Get medical advice or attention (P337+P313).
If on skin: Immediately remove all contaminated clothing. Rinse skin with water (P303+P361+P353).
If swallowed: Rinse mouth. Call a POISON CENTER or physician if you feel unwell.
SECTION 5 — FIRE FIGHTING MEASURES
Class IB flammable liquid.
Flash point: -9 °C Flammable limits: Lower: 1.4% Upper: 11.4% Autoignition Temperature: 404 °C
When heated to decomposition, may emit toxic fumes.
In case of fire: Use a tri-class dry chemical fire extinguisher.
NFPA Code
H-1
F-3
R-0
SECTION 6 — ACCIDENTAL RELEASE MEASURES
Remove all ignition sources and ventilate area. Contain the spill with sand or other inert absorbent material and deposit in a sealed bag or container. See Sections 8 and 13 for further information.

SECTION 7 — HANDLING AND STORAGE
Flinn Suggested Chemical Storage Pattern: Organic #4. Store with ethers, ketones, and halogenated hydrocarbons.
Store in a dedicated flammables cabinet. If a flammables cabinet is not available, store in a Flinn Saf-Stor™ can.
Keep container tightly closed (P233). Keep cool (P235). Take precautionary measures against static discharge (P243).
SECTION 8 — EXPOSURE CONTROLS, PERSONAL PROTECTION
Wear protective gloves, protective clothing, and eye protection (P280). Wash hands thoroughly after handling (P264).
Exposure guidelines: PEL/TLV 200 ppm (OSHA/ACGIH); STEL 300 ppm (ACGIH)
SECTION 9 — PHYSICAL AND CHEMICAL PROPERTIES
Colorless liquid. Odor like nail polish remover.
Soluble: Alcohol and ether. Miscible with oils.
Boiling point: 80 °C
Melting point: -87 °C
Refractive index: 1.3788
Specific gravity: 0.7999
SECTION 10 — STABILITY AND REACTIVITY
Avoid contact with oxidizers, reducers, and bases.
Shelf life: Good, if stored properly.
SECTION 11 — TOXICOLOGICAL INFORMATION
Acute effects: Severe eye irritant, nausea, dizziness, headache, GI disturbances
Chronic effects: Dermatitis
Target organs: Central nervous system
ORL-RAT LD50: 2737 mg/kg
IHL-RAT LC50: 23500 mg/m3/8H
SKN-RBT LD50: 6480 mg/kg
SECTION 12 — ECOLOGICAL INFORMATION
Data not yet available.
SECTION 13 — DISPOSAL CONSIDERATIONS
Please review all federal, state and local regulations that may apply before proceeding.
Flinn Suggested Disposal Method #18b is one option.
SECTION 14 — TRANSPORT INFORMATION
Shipping name: Methyl ethyl ketone. Hazard class: 3, Flammable liquid. UN number: UN1193.
SECTION 15 — REGULATORY INFORMATION
TSCA-listed, EINECS-listed (201-159-0), RCRA code U159.
SECTION 16 — OTHER INFORMATION
This Safety Data Sheet (SDS) is for guidance and is based upon information and tests believed to be reliable. Flinn Scientific, Inc. makes no guarantee of the accuracy or completeness of the data and shall not be liable for any damages relating thereto. The data is offered solely for your consideration, investigation, and verification. The data should not be confused with local, state, federal or insurance mandates, regulations, or requirements and CONSTITUTE NO WARRANTY. Any use of this data and information must be determined by the science instructor to be in accordance with applicable local, state or federal laws and regulations. The conditions or methods of handling, storage, use and disposal of the product(s) described are beyond the control of Flinn Scientific, Inc. and may be beyond our knowledge. FOR THIS AND OTHER REASONS, WE DO NOT ASSUME RESPONSIBILITY AND EXPRESSLY DISCLAIM LIABILITY FOR LOSS, DAMAGE OR EXPENSE ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE HANDLING, STORAGE, USE OR DISPOSAL OF THIS PRODUCT(S).
Consult your copy of the Flinn Science Catalog/Reference Manual for additional information about laboratory chemicals.