Manufacturer Supply High Quality CAS 1634-04- 4 Tert-Butyl Methyl Ether

• CAS No.: 1634-04- 4
• Formula: C5h12o
• EINECS: 216-653-1
• Type: Synthesis Material Intermediates
• Appearance: White Powder
• Quality: Industrial
• Model NO.: TY-02AL
• Colour: White
• Package: Foil Bag
• Place: China
• Assay: 99%
• Shelf: 2 Years
• Transport Package: 25kg/Drum 5g, 100g, 500g, 1kg, 10kg, 100kg, 200kg
• Specification: 25kg/drum
• Trademark: tongyon
• Origin: China
• Production Capacity: 5000kg/Month

Product Description

 

Product name	tert-Butyl methyl ether
CAS	1634-04- 4
Appearance	white powder
Assay	99%
Storage	Cool and Protect from light

tert-Butyl methyl ether
Product Name tert-Butyl methyl ether

CAS 1634-04- 4

MF C5H12O

MW 88.15

EINECS 216-653-1

MOL File 1634-04- 4.mol

Chemical Properties

Melting point -110 °C
Boiling point 55-56 °C(lit.)
Density  0.7404
vapor density  3.1 (vs air)
vapor pressure  4.05 psi ( 20 °C)
refractive index  n20/D 1.369(lit.)
Flash point -27 °F
storage temp.  Store at +2°C to +25°C.
solubility  42g/l
form  Powder or Needles
Specific Gravity 0.740
color  APHA: ≤10
Relative polarity 0.124
Odor Characteristic ethereal odor
explosive limit 1.5-8.5%(V)
Water Solubility  51 g/L (20 ºC)
FreezingPoint  -108.6ºC


Usage And Synthesis
Description

Internal combustion engines of high compression ratio require petrol with octane ratings that are sufficiently high to ensure efficient combustion. An economical way of achieving this property has been the use of anti-knock additives, such as tetraethyl and tetramethyll lead at concentrations up to 0.84 g l1. It was increasingly recognized, however, that lead is toxic and nondegradable, so its use in this way was gradually phased out. This action, which has been to the benefit of human health and the environment, required the reformulation of fuels to provide the desired high-octane ratings by the use of oxygenates. Fuel oxygenates are oxygen-rich compounds that act as octane enhancers, bringing the additional benefit of making petrol burn more completely, thereby reducing exhaust emissions. Oxygenates can be blended into petrol in two forms: alcohols (such as methanoll or ethanol) or ethers.
The fuel oxygenate first used in reformulation was methyl tertiary-butyl ether, Chemical Abstracts Service Registry Number (CAS RN) 1634-04- 4 (MTBE). It had been recognized during World War II that MTBE had particularly good octaneenhancing properties, allowing octane numbers of 115-135 (Research Octane Number (RON)) and 98-120 (motor octane number) to be achieved, but it was not until 1973, spurred by the global oil crisis, that the first commercial plant given to the production of MTBE was opened in Italy. The introduction of lead-free fuels led to the development of three-way catalytic converters, which are based on platinum. Lead poisons the platinum catalyst, so such converters had been hitherto unusable. Catalytic converters allow a more nearly complete combustion of fuel, thereby reducing exhaust emissions such as carbon monoxidee, unburned hydrocarbons, polycyclic aromatics, nitrogen oxides, and particulate carbon. These substances contributed significantly to the formation of smog, a phenomenon that is no longer a feature in the urban areas of those countries in which leaded petrol is prohibited..

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