2,3-Dimethylbutan Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R11:Leichtentzündlich.
R65:Gesundheitssch?dlich: kann beim Verschlucken Lungensch?den verursachen.
S-S?tze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S33:Ma?nahmen gegen elektrostatische Aufladungen treffen.
S62:Bei Verschlucken kein Erbrechen herbeiführen. Sofort ?rztlichen Rat einholen und Verpackung oder dieses Etikett vorzeigen.
Chemische Eigenschaften
2,3-Dimethylbutane, C6H14, is a flammable liquid with a
specific gravity of 0.66164. It is released into the atmosphere
from automobile, biomass combustion, and gasoline vapor
emissions.
Physikalische Eigenschaften
Colorless liquid with a mild gasoline-like odor. An odor threshold concentration of 4.2 ppm
v was
reported by Nagata and Takeuchi (1990).
Verwenden
2,3-Dimethylbutane is used in high octane fuels and in organic synthesis. It is also used as a gas chromatography standard.
Vorbereitung Methode
2,3-Dimethylbutane is produced from crude oil, natural
liquid gases, and petroleum refining processes.
Allgemeine Beschreibung
A clear colorless liquid with a petroleum-like odor. Flash point -20°F. Less dense than water and insoluble in water. Vapors heavier than air.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivit?t anzeigen
Saturated aliphatic hydrocarbons, such as 2,3-DIMETHYLBUTANE, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. 2,3-DIMETHYLBUTANE is incompatible with oxidizing materials. 2,3-DIMETHYLBUTANE is also incompatible with oxygen. .
Health Hazard
Inhalation or contact with material may irritate or burn skin and eyes. Fire may produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Sicherheitsprofil
Probably an irritant and
narcotic in high concentration. A very
dangerous fire and explosion hazard when
exposed to heat or flame; can react
vigorously with oxidizing materials. Keep
away from heat and open flame. To fight
fire, use foam, CO2, dry chemical. When
heated to decomposition it emits acrid
smoke and irritating fumes.
Environmental Fate
Photolytic. Major products reported from the photooxidation of 2,3-dimethylbutane with
nitrogen oxides are carbon monoxide and acetone. Minor products included formaldehyde,
acetaldehyde and peroxyacyl nitrates (Altshuller, 1983). Synthetic air containing gaseous nitrous
acid and exposed to artificial sunlight (λ = 300–450 nm) photooxidized 2,3-dimethylbutane into
acetone, hexyl nitrate, peroxyacetal nitrate, and a nitro aromatic compound tentatively identified
as a propyl nitrate (Cox et al., 1980).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. 2,3-
Dimethylbutane will not hydrolyze because it has no hydrolyzable functional group.
l?uterung methode
Distil it from sodium, pass it through a column of silica gel (activated by heating in nitrogen to 350o before use) to remove unsaturated impurities, and again distil it from sodium. Also distil it azeotropically with MeOH, then wash with water, dry (Na2SO4) it, and redistil it. [Beilstein 1 IV 371.]
2,3-Dimethylbutan Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
2,2-Dimethylbutan
3-Methylpentan
2,3-Dimethylbut-2-en
1,1,1,2,2,3,3,4,5,5,5-Undecafluor-4-(trifluormethyl)pentan
PERFLUORO(2,3-DIMETHYLBUTANE)
2,3,5-Trimethylhexan
2,3,4-Trimethylpentan
1,4-DIBROMO-2,3-BIS(BROMOMETHYL)-2-BUTENE
2,3,3-Trimethylpentan
2,4-Dimethylpentan
