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Safety Data Sheet EN

tert-Butyl methyl ether

CAS 1634-04-4
EC 216-653-1

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01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
tert-Butyl methyl ether
Product Code
375210000; 375210010; 375211000
Chemical Name
tert-Butyl methyl ether
Synonyms
2-Methyl-2-methoxy propane; MTBE; Methyl tert-butyl ether

Regulatory Identifiers

CAS Number
1634-04-4 Check regulations →
EC Number
216-653-1 Check regulations →
REACH No.
01-2119452786-27

Identified Uses

Laboratory chemicals. Sector of use: SU3 - Industrial uses: Uses of substances as such or in preparations at industrial sites. Product category: PC21 - Laboratory chemicals. Process categories: PROC15 - Use as a laboratory reagent. Environmental release category: ERC6a - Industrial use resulting in manufacture of another substance (use of intermediates)

Uses advised against

No Information available

Manufacturers & Suppliers

T

Thermo Fisher Scientific

Janssen Pharmaceuticalaan 3a, 2440 Geel, Belgium

F

Fisher Scientific UK

Bishop Meadow Road, Loughborough, Leicestershire LE11 5RG, United Kingdom

F

Fisher Scientific AG

distributor

Neuhofstrasse 11, CH 4153 Reinach

+41 (0) 56 618 41 11

Emergency Contacts

Emergency Contact

001-800-227-6701

Emergency Contact

+32 14 57 52 11

Emergency Contact

001-201-796-7100

Emergency Contact

+32 14 57 52 99

CHEMTREC

001-800-424-9300

CHEMTREC

001-703-527-3887

Tox Info Suisse

145

24hr

Tox Info Suisse

+41-44 251 51 51

Chemtrec

0800 564 402

24h

Chemtrec

+41-43 508 20 11

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified danger

Hazard Classifications

Flam. Liq. Cat. 2 H225
Skin Irrit. Cat. 2 H315

GHS Pictograms

GHS02 - Flammable

GHS02

GHS07 - Health hazard

GHS07

Hazard Statements

H225 Highly flammable liquid and vapor
H315 Causes skin irritation

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking
P240 Ground and bond container and receiving equipment
P302 + P352 IF ON SKIN: Wash with plenty of soap and water

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03

Composition / Information on Ingredients

Chemical components, concentration ranges, and hazardous substance identification

Type substance
Chemical Name CAS Number Concentration Hazardous
Methyl tert-butyl ether EC: 216-653-1 1634-04-4 95% Yes
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

Remove to fresh air. Get medical attention immediately if symptoms occur. If not breathing, give artificial respiration.

Symptoms: Difficulty in breathing. Inhalation of high vapor concentrations may cause symptoms like headache, dizziness, tiredness, nausea and vomiting

Skin contact

Wash off immediately with plenty of water for at least 15 minutes. Get medical attention.

Eye contact

Rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes. Get medical attention.

Ingestion

Do NOT induce vomiting. Get medical attention.

Immediate Medical Attention

Get medical attention.

Medical Treatment

Treat symptomatically.

05

Firefighting Measures

Extinguishing media, specific hazards, and firefighter protection

Suitable media

Water spray, carbon dioxide (CO2), dry chemical, alcohol-resistant foam. Water mist may be used to cool closed containers.

Unsuitable media

Do not use a solid water stream as it may scatter and spread fire.

Specific hazards

Flammable. Containers may explode when heated. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back.

Instructions

As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear. Thermal decomposition can lead to release of irritating gases and vapors.

Firefighter Protection

As in any fire, wear self-contained breathing apparatus pressure-demand, MSHA/NIOSH (approved or equivalent) and full protective gear.

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

Emergency procedures

Use personal protective equipment as required. Ensure adequate ventilation.

Environmental

Should not be released into the environment.

Cleanup methods

Soak up with inert absorbent material. Keep in suitable, closed containers for disposal.

Materials: inert absorbent material, suitable, closed containers

Related Products

Similar products with comparable safety profiles

07

Handling and Storage

Safe handling precautions, storage conditions, and workplace requirements

Handling

Wear personal protective equipment/face protection. Do not get in eyes, on skin, or on clothing. Avoid ingestion and inhalation. Keep away from open flames, hot surfaces and sources of ignition. Use only non-sparking tools. Use spark-proof tools and explosion-proof equipment. Take precautionary measures against static discharges. Use only under a chemical fume hood. To avoid ignition of vapors by static electricity discharge, all metal parts of the equipment must be grounded.

Storage

Flammables area. Keep away from heat, sparks and flame. Keep container tightly closed in a dry and well-ventilated place. May form explosive peroxides on prolonged storage.

Hygiene

Handle in accordance with good industrial hygiene and safety practice. Keep away from food, drink and animal feeding stuffs. Do not eat, drink or smoke when using this product. Remove and wash contaminated clothing and gloves, including the inside, before re-use. Wash hands before breaks and after work.

Fire prevention

Keep away from open flames, hot surfaces and sources of ignition. Use only non-sparking tools. Take precautionary measures against static discharges.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Engineering

Ensure that eyewash stations and safety showers are close to the workstation location. Ensure adequate ventilation, especially in confined areas. Use explosion-proof electrical/ventilating/lighting/equipment. Wherever possible, engineering control measures such as the isolation or enclosure of the process, the introduction of process or equipment changes to minimise release or contact, and the use of properly designed ventilation systems, should be adopted to control hazardous materials at source

Hands

Protective gloves. Glove material: Nitrile rubber, Breakthrough time: < 211 minutes, Glove thickness: 0.38 mm, EU standard: Level 4, Glove comments: Permeation rate 1 μg/cm2/min. Viton (R), Breakthrough time: < 152 minutes, Glove thickness: 0.7 mm, EU standard: Level 4, Glove comments: Permeation rate 17 μg/cm2/min. Neoprene, EU standard: EN 374, Glove comments: As tested under EN374-3 Determination of Resistance to Permeation by Chemicals. Natural rubber. PVC.

Eyes

Wear safety glasses with side shields (or goggles) (European standard - EN 166)

Respiratory

No protective equipment is needed under normal use conditions. Large scale/emergency use: Use a NIOSH/MSHA or European Standard EN 136 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced. Small scale/Laboratory use: Maintain adequate ventilation

Skin/Body

Wear appropriate protective gloves and clothing to prevent skin exposure. Inspect gloves before use. observe the instructions regarding permeability and breakthrough time which are provided by the supplier of the gloves. (Refer to manufacturer/supplier for information) gloves are suitable for the task: Chemical compatibility, Dexterity, Operational conditions, User susceptibility, e.g. sensitisation effects, also take into consideration the specific local conditions under which the product is used, such as the danger of cuts, abrasion. gloves with care avoiding skin contamination.

Environmental

No information available.

09

Physical and Chemical Properties

Appearance, physical state, melting point, boiling point, and material characteristics

Physical State
Liquid
Physical State Data
liquid
State Under Standard Conditions
---
Appearance
Colorless
Colour
---
Colour Intensity
---
Form
---
Odor
Petroleum distillates
Odor Threshold
No data available
Ph
No information available
Melting Point
-110 °C / -166 °F
Boiling Point
54 - 56 °C / 129.2 - 132.8 °F
Flash Point
-28 °C / -18.4 °F
Freezing Point
---
Softening Point
---
Solidification Point
---
Cloud Point
---
Crystallisation Point
---
Relative Evaporation Rate
---
Evaporation Rate
---
Vapor Pressure
268 mbar @ 20 °C
Vapor Density
0.2
Relative Density
---
Bulk Density
Not applicable
Density
0.740
Flammability
Highly flammable
Upper Explosive Limit
8.4 vol%
Lower Explosive Limit
1.6 vol%
Explosive Limits
---
Auto Ignition Temperature
224 °C / 435.2 °F
Decomposition Temperature
No data available
Solubility
---
Partition Coefficient
1.06
Solubility In Water
51 g/L (20°C)
Solubility In Fat
---
Molecular Weight
88.15
Voc Content
---
Metal Corrosion
---
Dynamic Viscosity
0.36 mPa.s at 20 °C
Kinematic Viscosity
---
Properties Status
---
10

Stability and Reactivity

Chemical stability, hazardous reactions, and incompatible materials

Stability

Stable under normal conditions.

Reactivity

None known, based on information available

Hazardous reactions

Hazardous polymerization does not occur. None under normal processing.

Avoid

Incompatible products. Excess heat. Keep away from open flames, hot surfaces and sources of ignition.

Incompatible

Strong oxidizing agents.

Decomposition

Carbon monoxide (CO). Carbon dioxide (CO₂).

12

Ecological Information

Environmental toxicity, biodegradation, and bioaccumulation data

The data for this section has not been processed yet.

13

Disposal Considerations

Waste treatment methods, disposal recommendations, and waste codes

The data for this section has not been processed yet.

14

Transport Information

UN numbers, shipping names, transport classes, and regulatory requirements

UN Number
UN2398
Shipping Name
METHYL tert-BUTYL ETHER
Transport Class
3
Packing Group
II
15

Regulatory Information

Chemical regulations, safety assessments, and compliance status

The data for this section has not been processed yet.

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Frequently Asked Questions

Common questions about safety, handling, and properties

What other names is tert-Butyl methyl ether known by?

tert-Butyl methyl ether is also known as: 2-Methyl-2-methoxy propane; MTBE; Methyl tert-butyl ether

What is the hazard signal word for tert-Butyl methyl ether?

The signal word is danger.

What is the physical form of tert-Butyl methyl ether?

tert-Butyl methyl ether is a liquid appearing as colorless . It has petroleum distillates odor.

What is tert-Butyl methyl ether used for?

Laboratory chemicals. Sector of use: SU3 - Industrial uses: Uses of substances as such or in preparations at industrial sites. Product category: PC21 - Laboratory chemicals. Process categories: PROC15 - Use as a laboratory reagent. Environmental release category: ERC6a - Industrial use resulting in manufacture of another substance (use of intermediates)

What are the hazard statements for tert-Butyl methyl ether?

This substance has 2 hazard statements:

  • H225: Highly flammable liquid and vapor
  • H315: Causes skin irritation

What is the melting point of tert-Butyl methyl ether?

The melting point is -110 °C / -166 °F and the boiling point is 54 - 56 °C / 129.2 - 132.8 °F.