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Material Safety Data Sheet

MSDS No.: Variant: Version No: Validation Date:

BE9038 Europe-EN 1.2 29.07.2004

ETHYL TERTIARY BUTYL ETHER
SECTION 1: IDENTIFICATION
Product Name: ETHYL TERTIARY BUTYL ETHER Product Number: 000000000000011582 Internal ID: 3251 Chemical Family: Alkyl ethers CAS Number: 637-92-3 Chemical Name: Tert-Butyl Ethyl Ether Synonyms: Tert-Butyl Ethyl Ether, ETBE-1(Expected Composition in Ship/Vessel) Type of Use: Octane enhancer Manufacturer Lyondell Chemie Nederland, B.V. Weenapoint D, Weena 762 3014 DA Rotterdam The Netherlands 24 Hour Emergency Contact Service Centre Europe 31 (0) 10 275 57 77 Business Contact Service Center Europe 31 (0) 10 275 55 00 F

SECTION 2 : COMPOSITION/INFORMATION ON INGREDIENTS
Component Name Ethyl Tertiary Butyl Ether t-ButylMethyl Ether Ethyl alcohol tert-Butyl Alcohol * CAS # 637-92-3 1634-04-4 64-17-5 75-65-0 EU Inventory 211-309-7 216-653-1 200-578-6 200-889-7 Concentration Wt.%* 83.0 12.3 2.2 1.2 Risk None R11, R38 R11 R11, R20 Symbol None F, Xi F F, Xn

Concentration of gaseous products or materials is given in Mole % Compositions given are typical values not specifications.

SECTION 3: HAZARD IDENTIFICATIONEmergency Overview
Hazards Highly flammable. Complementary Information: May impart an unpleasant taste and odor in water. R-Phrases R11 - Highly flammable. R52 - Harmful to aquatic organisms. Physical State Liquid. Color Clear, colorless to slightly yellow. Odor Terpene-like odor. Odor Threshold 13 ppm / Odor is not an adequate warning of potentially hazardous ambient air concentrations. Mayimpart an unpleasant taste and odor in water. The odor threshold for ETBE detection in air approximately 13 ppm. The taste threshold for ETBE Page 1 of 17

Material Safety Data Sheet

MSDS No.: Variant: Version No: Validation Date:

BE9038 Europe-EN 1.2 29.07.2004

ETHYL TERTIARY BUTYL ETHER
in water is approximately 47 ppb.

Potential Health Effects
Routes of Exposure Skin. EyeInhalation Signs and Symptoms of Acute Exposure See component summary. • Ethyl Tertiary Butyl Ether 637-92-3 Overexposure may cause coughing, shortness of breath, dizziness, central nervous system depression, intoxication and collapse. May be irritating to the eyes. Slight - moderate skin irritant. Not expected to be a sensitizer. Not a skin absorption hazard. Ingestion of high doses may cause discomfortand irritation of the gastrointestinal tract and CNS depression (fatigue, dizziness and possibly loss of concentration, with collapse, coma and death in cases of severe over-exposure). • t-Butyl Methyl Ether 1634-04-4 Eye irritant. Moderate skin irritant. Not a skin absorption hazard. Mucous membrane irritant. Overexposure may produce anesthetic or narcotic effects. Aspiration hazard. • Ethylalcohol 64-17-5 May cause eye and upper respiratory tract irritation. Short-term overexposure above 1,000 ppm by the inhalation route may cause central nervous system (CNS) effects such as headache and irritation of eyes, nose and throat. If continued for more than an hour additional CNS effects may occur such as: dizziness, drowsiness, loss of appetite, and an inability to concentrate.Gastrointestinal (stomach) effects may occur with symptoms such as nausea and vomiting. • tert-Butyl Alcohol 75-65-0 Moderate to severe eye irritant. Mildly irritating to the skin but not a skin sensitizer. Breathing mist or vapors may cause mucous membrane or upper respiratory tract irritation. Overexposure may cause coughing, shortness of breath, dizziness, central nervous system depression, intoxication andcollapse. Ingestion would likely cause gastrointestinal tract irritation. May produce symptoms of nervous system depression including headache, dizziness, nausea, loss of sense of balance, drowsiness, and visual disturbances. Skin Slight - moderate skin irritant. Extensive/prolonged or repeated exposure to this material can result in significant absorption. Not expected to be a skin absorption...
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