tert-Butyl methyl ether
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
GHS Label elements, including precautionary statements
-
Symbol(GHS)
- Signal wordDanger
Substance
- Product name: tert-Butyl methyl ether
- Synonyms: MTBE,TBME
- CAS: 1634-04-4
- EC number: 216-653-1
- MF: C5H12O
- MW: 88.15
Description of first aid measures
General adviceMost important symptoms and effects, both acute and delayed
Indication of any immediate medical attention and special treatment needed
Extinguishing media
Suitable extinguishing mediaSpecial 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
| 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. |
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.
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
control parameter
Hazard composition and occupational exposure limitsExposure controls
Personal protective equipmentUse equipment for eye protection tested and approved under appropriate government standards such as NIOSH (US) or EN 166(EU). Safety glasses
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)
Flame retardant antistatic protective clothing.
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.
Do not let product enter drains. Risk of explosion.
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
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
Incompatible materials
rubber, various plastics
Hazardous decomposition products
In the event of fire: see section 5
Information on toxicological effects
Acute toxicitySymptoms: 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)
Result: Skin irritation - 4 h (OECD Test Guideline 404)
Drying-out effect resulting in rough and chapped skin.
Result: No eye irritation (OECD Test Guideline 405)
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
Toxicity
flow-through test EC50 - Americamysis bahia (Mysid) - 187 mg/l - 96 h
(US-EPA OPPTS 850.1035)
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
Waste treatment methods
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 DisposalDissolve 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.
UN number
ADR/RID: 2398 IMDG: 2398 IATA: 2398
UN proper shipping name
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
Safety, health and environmental regulations/legislation specific for the substance or mixture
Regulations on the Safety Management of Hazardous ChemicalsAbbreviations 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
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.