NextSDS Logo
Safety Data Sheet EN

tert-Butyl methyl ether

CAS 1634-04-4

Keep this SDS organized and up to date

Add this SDS to your NextSDS library and keep all its safety information in one place.

Add to my SDS library for free
01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
tert-Butyl methyl ether
Product Code
40477
Synonyms
2-Methyl-2-methoxy propane; MTBE; Methyl tert-butyl ether

Regulatory Identifiers

CAS Number
1634-04-4 Check regulations →

Identified Uses

Laboratory chemicals.

Uses advised against

Food, drug, pesticide or biocidal product use.

Manufacturers & Suppliers

T

Thermo Fisher Scientific Chemicals, Inc.

manufacturer

30 Bond Street, Ward Hill, MA 01835-8099

800-343-0660

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

02

Hazard Identification

GHS classification, signal word, pictograms, and hazard statements

Classified danger

Hazard Classifications

Flam. Liq. Cat. 2
Skin Irrit. Cat. 2
STOT SE Cat. 3

GHS Pictograms

GHS02 - Flammable

GHS02

GHS07 - Health hazard

GHS07

Hazard Statements

H225 Highly flammable liquid and vapor
H315 Causes skin irritation
H335 May cause respiratory irritation

Precautionary Statements

P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking
P233 Keep container tightly closed
P235 Keep cool
P240 Ground and bond container and receiving equipment
P241 Use explosion-proof electrical/ventilating/lighting equipment
P242 Use non-sparking tools
P243 Take action to prevent static discharges
P261 Avoid breathing dust/fume/gas/mist/vapors/spray
P264 Wash face, hands and any exposed skin thoroughly after handling
P271 Use only outdoors or in a well-ventilated area
P280 Wear protective gloves/protective clothing/eye protection/face protection
P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower
P304 + P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing
P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
P312 Call a POISON CENTER or doctor if you feel unwell
P314 Get medical attention/advice if you feel unwell
P332 + P313 If skin irritation occurs: Get medical advice/attention
P337 + P313 If eye irritation persists: Get medical advice/attention
P362 + P364 Take off contaminated clothing and wash before reuse
P370 + P378 In case of fire: Use CO2, dry chemical, or foam to extinguish
P403 + P233 Store in a well-ventilated place. Keep container tightly closed
P405 Store locked up
P501 Dispose of contents/container to an approved waste disposal plant

Still copying SDS data manually?Free

You don't have to. NextSDS reads this SDS and adds the information to your library automatically.

Let NextSDS do it for me
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 1634-04-4 95% No
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: Dificulty 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

No information available

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

Water mist may be used to cool closed containers.

Firefighter Protection

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.

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

Environmental

Should not be released into the environment. See Section 12 for additional Ecological Information.

Cleanup methods

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

Materials: inert absorbent material

—

Related Products

Similar products with comparable safety profiles

T

tert-Butyl methyl ether

CAS: 1634-04-4

T

tert-Butyl methyl ether

CAS: 1634-04-4

T

tert-Butyl methyl ether

CAS: 1634-04-4

T

tert-Butyl methyl ether

CAS: 1634-04-4

T

tert-Butyl methyl ether

CAS: 1634-04-4

T

tert-Butyl methyl ether

CAS: 1634-04-4

T

tert-Butyl ethyl ether

CAS: 637-92-3

T

tert-Butyl ethyl ether

CAS: 637-92-3

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.

Hygiene

Do not get in eyes, on skin, or on clothing. Avoid ingestion and inhalation.

Fire prevention

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. To avoid ignition of vapors by static electricity discharge, all metal parts of the equipment must be grounded.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

09

Physical and Chemical Properties

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

Language Code
---
Physical State
Liquid
Physical State Data
liquid
State Under Standard Conditions
---
Appearance
---
Colour
Colorless
Colour Intensity
---
Form
---
Odor
Petroleum distillates
Odor Threshold
No information 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
No data available
Solidification Point
---
Cloud Point
---
Crystallisation Point
---
Relative Evaporation Rate
---
Evaporation Rate
---
Vapor Pressure
268 mbar @ 20 °C
Vapor Density
0.2
Relative Density
0.740
Bulk Density
Not applicable
Density
---
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

None under normal processing. Hazardous polymerization does not occur.

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

12.1 Toxicity

Freshwater Algae: 800 mg/L EC50 > 72 h, 184 mg/L EC50 = 96 h. Freshwater Fish: 887 mg/L LC50 96 h, 100 mg/L LC50 96 h, 929 mg/L LC50 96 h, 672 mg/L LC50 96 h. Microtox: EC50 = 11.4 mg/L 30 min, EC50 = 8.23 mg/L 5 min, EC50 = 9.67 mg/L 15 min. Water Flea: EC50: = 542 mg/L, 48h (Daphnia magna)

Persistence and Degradability

Persistence is unlikely based on information available.

Bioaccumulative potential

Bioaccumulation/ Accumulation No information available.

Mobility in soil

Will likely be mobile in the environment due to its volatility.

12.4 Mobility in soil

Mobility Will likely be mobile in the environment due to its volatility.

The substance is likely to be mobile in the environment due to its volatility.

13

Disposal Considerations

Waste treatment methods, disposal recommendations, and waste codes

Disposal

Chemical waste generators must determine whether a discarded chemical is classified as a hazardous waste.

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

?

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 with colorless color. It has petroleum distillates odor.

What is tert-Butyl methyl ether used for?

Laboratory chemicals.

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

This substance has 3 hazard statements:

  • H225: Highly flammable liquid and vapor
  • H315: Causes skin irritation
  • H335: May cause respiratory 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.