Methyl-t-Butyl Ether SDS (Safety Data Sheet)

SECTION 1 — CHEMICAL PRODUCT AND COMPANY IDENTIFICATION

Methyl-t-Butyl Ether

Flinn Scientific, Inc. P.O. Box 219, Batavia, IL 60510 (800) 452-1261
Chemtrec Emergency Phone Number: (800) 424-9995

Signal Word
DANGER

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 corrosion or irritation (Category 2). Causes skin irritation (H315).

Pictograms

SECTION 3 — COMPOSITION, INFORMATION ON INGREDIENTS

Component Name	CAS Number	Formula	Formula Weight	Concentration
Methyl-t-butyl ether Synonyms: MTBE, Methyl tertiary butyl ether,tert-Butyl methyl ether	1634-04-4	CH₃OC(CH₃)₃	88.15

SECTION 4 — FIRST AID MEASURES

Call a POISON CENTER or physician if you feel unwell.
If inhaled: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
If in eyes: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do so. Continue rinsing.
If on skin: Immediately remove all contaminated clothing. Rinse skin with water (P303+P361+P353). If skin irritation occurs: Get medical advice or attention (P332+P313).
If swallowed: Do NOT induce vomiting. Rinse mouth. Call a POISON CENTER or physician if you feel unwell.

SECTION 5 — FIRE FIGHTING MEASURES

Class 1A flammable liquid.
Flash point: -80 °C Flammable limits: Lower: 1.6% Upper: 15.1% Autoignition Temperature: 435 °C
When heated to decomposition, may emit toxic fumes.
In case of fire: Use a tri-class dry chemical fire extinguisher.

NFPA Code

H: 2
F: 3
R: 0

SECTION 6 — ACCIDENTAL RELEASE MEASURES

Remove all ignition sources and ventilate area. Contain the spill with sand or 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). Ground or bond container and receiving equipment (P240). 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: TLV 50 ppm (ACGIH)

SECTION 9 — PHYSICAL AND CHEMICAL PROPERTIES

Colorless liquid. Sweet odor. Volatile.
Soluble: Alcohol, chloroform, and ethyl ether. Slightly in water.
Vapor pressure: 1,018.7 hPa (764.1 mmHg) at 55 °C
Water solubility: 42 g/l at 20 °C
Partition coefficient: log Pow: 1.06

Boiling point: 55-56 °C
Melting point: -109 °C
Specific gravity: 0.745
Upper flammability limit: 15.1% (V)
Lower flammability limit: 1.6% (V)

SECTION 10 — STABILITY AND REACTIVITY

Reactivity: No data available. Chemical stability: Stable under normal storage conditions.
Conditions to avoid: Heat, flames, sparks. Incompatible materials: Oxidizing agents, strong acids
Possibility of hazardous reactions: Vapors may form explosive mixture with air. Shelf life: Indefinite, if stored properly.

SECTION 11 — TOXICOLOGICAL INFORMATION

Acute effects: N.A.
Chronic effects: N.A.
Target organs: Skin, eyes.
IARC: Group 3, not classifiable as to its carcinogenicity to humans

ORL-RAT LD₅₀: 4000 mg/kg
IHL-RAT LC₅₀: 23,576 ppm (4 hours)
SKN-RBT LD₅₀: greater than 10,000 mg/kg

SECTION 12 — ECOLOGICAL INFORMATION

Toxicity: LC₅₀ Pimephales promelas (fathead minnow) 672.00 mg/l - 96 hours

SECTION 13 — DISPOSAL CONSIDERATIONS

Please review all federal, state and local regulations that may apply before proceeding.
Flinn Suggested Disposal Methods #15 is one option.

SECTION 14 — TRANSPORT INFORMATION

UN2398; METHYL tert-BUTYL ETHER; CLASS 3; PG II Reportable quantity: 1,000 lbs

SECTION 15 — REGULATORY INFORMATION

TSCA-listed, EINECS-listed (211-309-7), RCRA code D001.

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.

Methyl-t-Butyl Ether Safety Data Sheet (SDS)

Methyl-t-Butyl Ether