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Safety Data Sheet EN

tert-Butyl methyl ether

CAS 1634-04-4

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01

Identification

Product identifiers, regulatory numbers, and supplier information

Product Information

Product Name
tert-Butyl methyl ether
Product Code
34875

Regulatory Identifiers

CAS Number
1634-04-4 Check regulations →
REACH No.
01-2119452786-27-XXXX

Identified Uses

Laboratory chemicals, Manufacture of substances

Manufacturers & Suppliers

S

Sigma-Aldrich Chemie GmbH

manufacturer

Eschenstrasse 5, D-82024 TAUFKIRCHEN

+49 (0)89 6513-1130

Emergency Contacts

CHEMTREC Deutschland

0800 181 7059

CHEMTREC weltweit

+49 (0)696 43508409

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.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof electrical/ ventilating/ lighting/ equipment.
P242 Use non-sparking tools.
P303 + P361 + P353 IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with 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
tert-butyl methyl ether EC: 216-653-1 1634-04-4 --- Yes
04

First Aid Measures

Emergency procedures for chemical exposure incidents

Inhalation

After inhalation: fresh air.

Skin contact

Take off immediately all contaminated clothing. Rinse skin with water/ shower.

Eye contact

After eye contact: rinse out with plenty of water. Remove contact lenses.

Ingestion

After swallowing: caution if victim vomits. Keep airways free. Call a physician immediately.

Symptoms: Risk of aspiration! Pulmonary failure possible after aspiration of vomit.

Immediate Medical Attention

Call a physician immediately.

05

Firefighting Measures

Extinguishing media, specific hazards, and firefighter protection

Suitable media

Carbon dioxide (CO2) Foam Dry powder

Unsuitable media

For this substance/mixture no limitations of extinguishing agents are given.

Specific hazards

Combustible. Pay attention to flashback. Vapors are heavier than air and may spread along floors. Development of hazardous combustion gases or vapours possible in the event of fire. Forms explosive mixtures with air at ambient temperatures.

Instructions

Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.

Firefighter Protection

Stay in danger area only with self-contained breathing apparatus. Prevent skin contact by keeping a safe distance or by wearing suitable protective clothing.

06

Accidental Release Measures

Spill cleanup procedures, containment, and environmental protection

Emergency procedures

Do not breathe vapors, aerosols. Avoid substance contact. Ensure adequate ventilation. Keep away from heat and sources of ignition. Evacuate the danger area, observe emergency procedures, consult an expert.

Environmental

Do not let product enter drains. Risk of explosion.

Cleanup methods

Take up with liquid-absorbent material (e.g. Chemizorb®). Clean up affected area.

Materials: liquid-absorbent material (e.g. Chemizorb®)

Related Products

Similar products with comparable safety profiles

07

Handling and Storage

Safe handling precautions, storage conditions, and workplace requirements

Handling

Keep away from open flames, hot surfaces and sources of ignition. Take precautionary measures against static discharge.

Storage

Keep container tightly closed in a dry and well-ventilated place. Keep away from heat and sources of ignition.

Hygiene

Immediately change contaminated clothing. Apply preventive skin protection. Wash hands and face after working with substance.

Fire prevention

Keep away from open flames, hot surfaces and sources of ignition.

08

Exposure Controls / PPE

Occupational exposure limits, engineering controls, and protective equipment

Hands

This recommendation applies only to the product stated in the safety data sheet, supplied by us and for the designated use. When dissolving in or mixing with other substances and under conditions deviating from those stated in EN 16523-1 please contact the supplier of CE-approved gloves (e.g. KCL GmbH, D-36124 Eichenzell, Internet: www.kcl.de). Splash contact Material: Nitrile rubber Minimum layer thickness: 0,4 mm Break through time: 120 min Material tested: Camatril® (KCL 730 / Aldrich Z677442, Size M)

Eyes

Use equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses

Respiratory

required when vapours/aerosols are generated. Our recommendations on filtering respiratory protection are based on the following standards: DIN EN 143, DIN 14387 and other accompanying standards relating to the used respiratory protection system. Recommended Filter type: Filter type AX The entrepreneur has to ensure that maintenance, cleaning and testing of respiratory protective devices are carried out according to the instructions of the producer. These measures have to be properly documented.

Skin/Body

Flame retardant antistatic protective clothing.

Environmental

Do not let product enter drains. Risk of explosion.

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
---
Colour
colorless
Colour Intensity
---
Form
---
Odor
characteristic
Odor Threshold
---
Ph
No data available
Melting Point
55 - 56 °C - lit.
Boiling Point
---
Flash Point
-28 °C - closed cup
Freezing Point
---
Softening Point
---
Solidification Point
---
Cloud Point
---
Crystallisation Point
---
Relative Evaporation Rate
---
Evaporation Rate
---
Vapor Pressure
330 hPa at 25 °C - OECD Test Guideline 104
Vapor Density
---
Relative Density
0,74 at 20 °C
Bulk Density
---
Density
0,74 g/cm³ at 25 °C - lit.
Flammability
---
Upper Explosive Limit
8,5 % (V)
Lower Explosive Limit
1,6 % (V)
Explosive Limits
---
Auto Ignition Temperature
460 °C at 1013,0 hPa - DIN 51794
Decomposition Temperature
Distillable in an undecomposed state at normal pressure.
Solubility
---
Partition Coefficient
log Pow: 1,06 at 20 °C - OECD Test Guideline 107 - n-octanol/water Bioaccumulation is not expected.
Solubility In Water
42 g/l at 20 °C - OECD Test Guideline 105
Solubility In Fat
---
Molecular Weight
---
Voc Content
---
Metal Corrosion
---
Dynamic Viscosity
0,36 mPa.s at 20 °C
Kinematic Viscosity
0,409 mm²/s at 40 °C - OECD Test Guideline 1140,464 mm²/s at 20 °C - OECD Test Guideline 114
Properties Status
---
10

Stability and Reactivity

Chemical stability, hazardous reactions, and incompatible materials

Stability

The product is chemically stable under standard ambient conditions (room temperature).

Reactivity

Vapors may form explosive mixture with air.

Hazardous reactions

Violent reactions possible with: Oxidizing agents, Strong acids, halogens, Strong bases, rubber, various plastics

Avoid

Heat, flames and sparks. Warming.

Incompatible

No data available

Decomposition

In the event of fire: see section 5

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
2398
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 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 characteristic odor.

What is tert-Butyl methyl ether used for?

Laboratory chemicals, Manufacture of substances

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 55 - 56 °C - lit. .