Description
Synonym: MTBE, Methyl tert-butyl ether
CAS Number: 1634-04-4
Linear Formula: (CH3)3COCH3
Molecular Weight: 88.15
Beilstein/REAXYS Number: 1730942
EC Number: 216-653-1
MDL number: MFCD00008812
PubChem Substance ID: 329756503
NACRES: NA.07
Quality Level: 200
Grade: ACS reagent
Vapor Density: 3.1 (vs air)
Vapor Pressure: 4.05 psi
Assay: ≥99.0%
Autoignition Temperature: 705°F
Expl. Lim.: 15.1 %
Impurities: ≤0.05% water
Evaporation Residue: ≤0.001%
Color APHA: ≤10
Refractive Index: n20/D 1.369 (lit.)
bp: 55-56°C (lit.)
mp: -110°C
Density: 0.74 g/mL at 25°C (lit.)
General description:
tert-Butyl methyl ether (methyl tert-butyl ether, MTBE) is a gasoline additive. Its oxidative degradation by propane-oxidizing bacterial strains has been tested. Kinetics of its heat-mediated biodegradation has been investigated under various reaction conditions. Its biodegradation followed a pseudo-first-order decay model and its pseudo-first-order rate constants were evaluated. Its extraction from water has been proposed by employing an organic polymeric compound, Nafion. MTBE can be synthesized by acid-catalyzed reaction between methanol and isobutene. A study suggests that the addition of MTBE increases the number of active sites during polymerization of propene by stopped-flow method. This solvent meets ACS (American Chemical Society) specifications and can be used for processes requiring strict quality conditions such as analytical testing.
Application:
tert-Butyl methyl ether (methyl tert-butyl ether, MTBE) may be used: • As sole carbon and energy source in a mixed microbial consortium. • To extract lipids from biological fluids for shotgun profiling. • To synthesize fatty acid methyl esters (FAMEs) and glycerol tert-butyl ether by transesterification of canola oil in the absence of catalyst under supercritical condition. GHS02GHS07GHS02, GHS07
Signal word: Danger
Hazard statements: H225-H315
Precautionary statements: P210
RIDADR: UN 2398 3 / PGII
WGK Germany: 1
RTECS: KN5250000
Flash Point(F): -27.4°F
Flash Point(C): -33°C
Acetone ACS Reagent ≥99.5% 2.5 Liter
- CAS Number 67-64-1
- Linear Formula CH3COCH3
- Molecular Weight 58.08
- Beilstein/REAXYS Number 635680
- EC Number 200-662-2
- MDL number MFCD00008765
- eCl@ss 39021201
- PubChem Substance ID 329751579
| Grade | ACS reagent |
| Vapor Density | 2 (vs air) |
| Vapor Pressure | 184 mmHg (20°C) |
| Assay | ≥99.5% |
| Form | liquid (clear) |
| Shelf life | Recommended retest period – 2 years |
| Expl. Lim. | 13.2 % |
| Impurities | ≤0.0003 meq/g Titr. acid
≤0.0006 meq/g Titr. base ≤0.002% aldehyde as formaldehyde ≤0.05% isopropanol ≤0.05% methanol ≤0.5% water |
| Evaporation Residue | ≤0.001% |
| Color | APHA: ≤10 |
| Refractive Index | n20/D 1.359 (lit.) |
| bp | 56°C/760 mmHg (lit.) |
| mp | −94°C (lit.) |
| Density | 0.791 g/mL at 25°C (lit.) |
General description
Acetone is a polar organic solvent. It can undergo photocatalytic oxidation in the presence of mixed TiO2-rare earth oxides.
Application
Acetone may be used in the synthesis of Ga (Gallium)-DOTATATE (where DOTA= 1,4,7,10-tetraazacyclo- dodecane -1,4,7,10-tetraacetic acid) chemicals.6 It may be used in an assay for the determination of ester groups in lipids by spectrophotometric methods.
Acetone undergoes aldolization in the presence of Mg-Al layered double hydroxides (LDH) as catalysts and Cl- and/or CO32- as compensating anions to afford diacetone alcohol and mesityl oxide as the main products. Its enantioselective Aldol condensation with various isatins in the presence of a dipeptide catalyst forms 1-alkyl 3-(2-oxopropyl)-3-hydroxyindolin-2-ones. Aqueous solution of acetone may be used as a medium for the oxidation of alkynes to 1,2-diketones using potassium permanganate.
Acetone′s luminesence intensity is dependent upon the solution components . The absorption of UV light by acetone, results in its photolysis and the production of radials .
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