Chemical Safety Data Sheet MSDS / SDS

tert-Butyl methyl ether

Revision Date:2023-12-30Revision Number:1

SECTION 1: Identification of the substance/mixture and of the company/undertaking

Product identifier

  • Product name: tert-Butyl methyl ether
  • CBnumber: CB2853178
  • CAS: 1634-04-4
  • EINECS Number: 216-653-1
  • Synonyms: MTBE,TBME

Relevant identified uses of the substance or mixture and uses advised against

  • Relevant identified uses: For R&D use only. Not for medicinal, household or other use.
  • Uses advised against: none

Company Identification

  • Company: Chemicalbook
  • Address: Building 1, Huihuang International, Shangdi 10th Street, Haidian District, Beijing
  • Telephone: 400-158-6606

SECTION 2: Hazards identification

GHS Label elements, including precautionary statements

  • Symbol(GHS)
  • Signal wordDanger
Precautionary statements
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233 Keep container tightly closed.
P240 Ground/bond container and receiving equipment.
P241 Use explosion-proof electrical/ventilating/lighting/…/equipment.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly 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): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P370+P378 In case of fire: Use … for extinction.
P403+P233 Store in a well-ventilated place. Keep container tightly closed.
P403+P235 Store in a well-ventilated place. Keep cool.
P405 Store locked up.
P501 Dispose of contents/container to..…
Hazard statements
H225 Highly Flammable liquid and vapour
H303 May be harmfulif swallowed
H304 May be fatal if swallowed and enters airways
H315 Causes skin irritation
H319 Causes serious eye irritation
H335 May cause respiratory irritation
H336 May cause drowsiness or dizziness
H351 Suspected of causing cancer

SECTION 3: Composition/information on ingredients

Substance

  • Product name: tert-Butyl methyl ether
  • Synonyms: MTBE,TBME
  • CAS: 1634-04-4
  • EC number: 216-653-1
  • MF: C5H12O
  • MW: 88.15

SECTION 4: First aid measures

Description of first aid measures

General advice
Show this material safety data sheet to the doctor in attendance.
If inhaled
After inhalation: fresh air.
In case of skin contact
In case of skin contact: Take off immediately all contaminated clothing. Rinse skin with water/ shower.
In case of eye contact
After eye contact: rinse out with plenty of water. Remove contact lenses.
If swallowed
After swallowing: caution if victim vomits. Risk of aspiration! Keep airways free. Pulmonary failure possible after aspiration of vomit. Call a physician immediately.

Most important symptoms and effects, both acute and delayed

The most important known symptoms and effects are described in the labelling (see section 2.2) and/or in section 11

Indication of any immediate medical attention and special treatment needed

No data available

SECTION 5: Firefighting measures

Extinguishing media

Suitable extinguishing media
Carbon dioxide (CO2) Foam Dry powder
Unsuitable extinguishing media
For this substance/mixture no limitations of extinguishing agents are given.

Special hazards arising from the substance or mixture

Carbon oxides 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.

Advice for firefighters

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

Further information

Remove container from danger zone and cool with water. Prevent fire extinguishing water from contaminating surface water or the ground water system.

NFPA 704

2
3
0
HEALTH 2 Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury (e.g. diethyl ether, ammonium phosphate, iodine)
FIRE 3 Liquids and solids (including finely divided suspended solids) that can be ignited under almost all ambient temperature conditions . Liquids having a flash point below 22.8 °C (73 °F) and having a boiling point at or above 37.8 °C (100 °F) or having a flash point between 22.8 and 37.8 °C (73 and 100 °F). (e.g. gasoline, acetone)
REACT 0 Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2)
SPEC. HAZ.

SECTION 6: Accidental release measures

Personal precautions, protective equipment and emergency procedures

Advice for non-emergency personnel: 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. For personal protection see section 8.

Environmental precautions

Do not let product enter drains. Risk of explosion.

Methods and materials for containment and cleaning up

Cover drains. Collect, bind, and pump off spills. Observe possible material restrictions (see sections 7 and 10). Take up with liquid-absorbent material (e.g. Chemizorb? ). Dispose of properly. Clean up affected area.

Reference to other sections

For disposal see section 13.

SECTION 7: Handling and storage

Precautions for safe handling

Advice on protection against fire and explosion

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

Hygiene measures

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

For precautions see section 2.2.

Conditions for safe storage, including any incompatibilities

Storage conditions

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

Specific end use(s)

Apart from the uses mentioned in section 1.2 no other specific uses are stipulated

SECTION 8: Exposure controls/personal protection

control parameter

Hazard composition and occupational exposure limits
Does not contain substances with occupational exposure limits.

Exposure controls

Personal protective equipment
Eye/face protection

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

Skin protection

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 EN374 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)

Body Protection

Flame retardant antistatic protective clothing.

Respiratory protection

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 entrepeneur 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.

Control of environmental exposure

Do not let product enter drains. Risk of explosion.

SECTION 9: Physical and chemical properties

Information on basic physicochemical properties

  • Appearancecolorless liquid
  • Odourcharacteristic
  • Odour Threshold0,053 ppm
  • pHNo data available
  • Melting point/freezing pointMelting point: -108,6 °C at 1.013 hPa
  • Initial boiling point and boiling range 55 - 56 °C - lit.
  • Flash point-28 °C - closed cup
  • Evaporation rateNo data available
  • Flammability (solid, gas)No data available
  • Upper/lower flammability or explosive limits Upper explosion limit: 8,5 %(V) Lower explosion limit: 1,6 %(V)
  • Vapour pressure 330 hPa at 25 °C - OECD Test Guideline 104
  • Vapour density 3.1 (vs air)
  • Relative density0,74 g/cm3 at 25 °C - lit. 0,74 at 20 °C
  • Water solubility42 g/l at 20 °C - OECD Test Guideline 105
  • Partition coefficient: n-octanol/waterlog Pow: 1,06 at 20 °C - OECD Test Guideline 107 - Bioaccumulation is not expected.
  • Autoignition temperature 460 °C at 1013,0 hPa - DIN 51794 Dis
  • Decomposition temperature Distillable in an undecomposed state at normal pressure.
  • ViscosityViscosity, kinematic: 0,409 mm2/s at 40 °C - OECD Test Guideline 1140,464 mm2/s at 20 °C - OECD Test Guideline 114 Viscosity, dynamic: 0,36 mPa.s at 20 °C
  • Explosive propertiesNo data available
  • Oxidizing propertiesNo data available
  • λmaxλ: 210 nm Amax: 1.0
    λ: 225 nm Amax: 0.50
    λ: 250 nm Amax: 0.10
    λ: 300-400 nm Amax: 0.005

Other safety information

Surface tension 72,5 mN/m at 1,07g/l at 21,5 °C

- Surface tension

SECTION 10: Stability and reactivity

Reactivity

Vapors may form explosive mixture with air.

Chemical stability

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

Possibility of hazardous reactions

Violent reactions possible with:

Oxidizing agents Strong acids halogens

Strong bases


Conditions to avoid

Heat, flames and sparks. Warming.

Incompatible materials

rubber, various plastics

Hazardous decomposition products

In the event of fire: see section 5

SECTION 11: Toxicological information

Information on toxicological effects

Acute toxicity
LD50 Oral - Rat - male and female - > 2.000 mg/kg (OECD Test Guideline 401)
Symptoms: Nausea, Vomiting, Pulmonary failure possible after aspiration of vomit., Aspiration may cause pulmonary edema and pneumonitis.
LC50 Inhalation - Rat - male and female - 4 h - 85 mg/l (OECD Test Guideline 403)
Symptoms: Possible damages:, mucosal irritations LD50 Dermal - Rat - male and female - > 2.000 mg/kg (OECD Test Guideline 402)
Skin corrosion/irritation
Skin - Rabbit
Result: Skin irritation - 4 h (OECD Test Guideline 404)
Drying-out effect resulting in rough and chapped skin.
Serious eye damage/eye irritation
Eyes - Rabbit
Result: No eye irritation (OECD Test Guideline 405)
Respiratory or skin sensitization
(OECD Test Guideline 406)
Germ cell mutagenicity
No data available
Test Type: In vitro mammalian cell gene mutation test Test system: Chinese hamster lung cells
Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 476
Result: negative
Test Type: Ames test
Test system: Salmonella typhimurium
Metabolic activation: with and without metabolic activation Method: OECD Test Guideline 471
Result: negative
Test Type: Mutagenicity (mammal cell test): micronucleus. Test system: mouse lymphoma cells
Metabolic activation: without metabolic activation Method: OECD Test Guideline 473
Result: negative
Test Type: unscheduled DNA synthesis assay Species: Mouse
Cell type: Liver cells
Application Route: inhalation (vapor) Method: OECD Test Guideline 486 Result: negative
Test Type: Micronucleus test Species: Mouse
Cell type: Bone marrow
Application Route: inhalation (vapor) Method: US-EPA
Result: negative
Test Type: Mutagenicity (mammal cell test): chromosome aberration. Species: Rat
Cell type: Bone marrow
Application Route: inhalation (vapor) Method: US-EPA
Result: negative
Test Type: Transgenic rodent somatic cell gene mutation assay Species: Rat
Cell type: Bone marrow
Application Route: inhalation (vapor) Method: OECD Test Guideline 488 Result: negative
Carcinogenicity
No data available
Reproductive toxicity
No data available
Specific target organ toxicity - single exposure
No data available
Specific target organ toxicity - repeated exposure
No data available
Aspiration hazard
No data available
Toxicity
. LC50 in mice (15 min): 1.6 mmol/liter of atmosphere (Marsh)

SECTION 12: Ecological information

Toxicity

Toxicity to fish
semi-static test LC50 - Menidia beryllina - 574 mg/l - 96 h (OECD Test Guideline 203)

Toxicity to daphnia and other aquatic invertebrates

flow-through test EC50 - Americamysis bahia (Mysid) - 187 mg/l - 96 h

(US-EPA OPPTS 850.1035)

Toxicity to algae
static test IC50 - Pseudokirchneriella subcapitata (green algae) - 491 mg/l - 96 h

Toxicity to bacteria
static test EC10 - Pseudomonas putida - 710 mg/l - 18 h Remarks: (ECHA)


Persistence and degradability

Biodegradability aerobic - Exposure time 28 d

Result: 0 % - Not readily biodegradable. (OECD Test Guideline 301D)

Bioaccumulative potential

Bioaccumulation Cyprinus carpio (Carp) - 28 d

at 25 °C(tert-butyl methyl ether)


Bioconcentration factor (BCF): 1,5

Mobility in soil

No data available

Results of PBT and vPvB assessment

This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher.

Other adverse effects

No data available

SECTION 13: Disposal considerations

Waste treatment methods

Incompatibilities

May form explosive mixture with air. Much less likely to form peroxides than other ethers. Incompatible with strong acids. Incompatible with oxidizers; contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides. May accumulate static electrical charges, and cause ignition of its vapors.

Product

See www.retrologistik.com for processes regarding the return of chemicals and

containers, or contact us there if you have further questions.

Waste Disposal

Dissolve or mix the material with a combustible solvent and burn in a chemical incinerator equipped with an afterburner and scrubber. All federal, state, and local environmental regulations must be observed.

SECTION 14: Transport information

UN number

ADR/RID: 2398 IMDG: 2398 IATA: 2398

UN proper shipping name

ADR/RID: METHYL tert-BUTYL ETHER IMDG: METHYL tert-BUTYL ETHER IATA: Methyl tert-butyl ether

Transport hazard class(es)

ADR/RID: 3 IMDG: 3 IATA: 3

Packaging group

ADR/RID: II IMDG: II IATA: II

Environmental hazards

ADR/RID: no IMDG Marine pollutant: no IATA: no

Special precautions for user

No data available

SECTION 15: Regulatory information

Safety, health and environmental regulations/legislation specific for the substance or mixture

Regulations on the Safety Management of Hazardous Chemicals
China Catalog of Hazardous chemicals 2015:Listed. website: https://www.mem.gov.cn/
Measures for Environmental Management of New Chemical Substances
Chinese Chemical Inventory of Existing Chemical Substances (China IECSC):Listed. website: https://www.mee.gov.cn/
EC Inventory:Listed.
European Inventory of Existing Commercial Chemical Substances (EINECS):Listed. website: https://echa.europa.eu/
Korea Existing Chemicals List (KECL):Listed. website: http://ncis.nier.go.kr
New Zealand Inventory of Chemicals (NZIoC):Listed. website: https://www.epa.govt.nz/
Philippines Inventory of Chemicals and Chemical Substances (PICCS):Listed. website: https://emb.gov.ph/
United States Toxic Substances Control Act (TSCA) Inventory:Listed. website: https://www.epa.gov/
Vietnam National Chemical Inventory:Listed. website: https://chemicaldata.gov.vn/

SECTION 16: Other information

Abbreviations and acronyms

  • ADR: European Agreement concerning the International Carriage of Dangerous Goods by Road
  • CAS: Chemical Abstracts Service
  • EC50: Effective Concentration 50%
  • IATA: International Air Transportation Association
  • IMDG: International Maritime Dangerous Goods
  • LC50: Lethal Concentration 50%
  • LD50: Lethal Dose 50%
  • RID: Regulation concerning the International Carriage of Dangerous Goods by Rail
  • STEL: Short term exposure limit
  • TWA: Time Weighted Average

References

【1】CAMEO Chemicals, website: http://cameochemicals.noaa.gov/search/simple

【2】ChemIDplus, website: http://chem.sis.nlm.nih.gov/chemidplus/chemidlite.jsp

【3】ECHA - European Chemicals Agency, website: https://echa.europa.eu/

【4】eChemPortal - The Global Portal to Information on Chemical Substances by OECD, website: http://www.echemportal.org/echemportal/index?pageID=0&request_locale=en

【5】ERG - Emergency Response Guidebook by U.S. Department of Transportation, website: http://www.phmsa.dot.gov/hazmat/library/erg

【6】Germany GESTIS-database on hazard substance, website: http://www.dguv.de/ifa/gestis/gestis-stoffdatenbank/index-2.jsp

【7】HSDB - Hazardous Substances Data Bank, website: https://toxnet.nlm.nih.gov/newtoxnet/hsdb.htm

【8】IARC - International Agency for Research on Cancer, website: http://www.iarc.fr/

【9】IPCS - The International Chemical Safety Cards (ICSC), website: http://www.ilo.org/dyn/icsc/showcard.home

【10】Sigma-Aldrich, website: https://www.sigmaaldrich.com/

Other Information

Much less likely to form peroxides than other ethers.
Disclaimer:

The information in this MSDS is only applicable to the specified product, unless otherwise specified, it is not applicable to the mixture of this product and other substances. This MSDS only provides information on the safety of the product for those who have received the appropriate professional training for the user of the product. Users of this MSDS must make independent judgments on the applicability of this SDS. The authors of this MSDS will not be held responsible for any harm caused by the use of this MSDS.

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