2-Brombutan

Bezeichnung:2-Brombutan

CAS-Nr78-76-2

Englisch Name:2-Bromobutane

CBNumberCB9854376

SummenformelC4H9Br

Molgewicht137.02

MOL-Datei78-76-2.mol

Synonyma

2-Brombutan

2-Brombutan physikalisch-chemischer Eigenschaften

Schmelzpunkt	-112 °C
Siedepunkt	91 °C(lit.)
Dichte	1.255 g/mL at 25 °C(lit.)
Dampfdruck	70 hPa (20 °C)
Brechungsindex	n20/D 1.4369(lit.)
Flammpunkt	70 °F
storage temp.	Store at +2°C to +8°C.
Löslichkeit	<1g/l
Aggregatzustand	Liquid
Farbe	Clear colorless to yellow-brown
Explosionsgrenze	2.6-6.6%(V)
Wasserlöslichkeit	insoluble
Merck	14,1554
BRN	505949
Dielectric constant	8.6400000000000006
Stabilität	Stable. Flammable. Incompatible with strong oxidizing agents.
InChIKey	UPSXAPQYNGXVBF-UHFFFAOYSA-N
LogP	3 at 35℃ and pH7
CAS Datenbank	78-76-2(CAS DataBase Reference)
NIST chemische Informationen	Butane, 2-bromo-(78-76-2)
EPA chemische Informationen	Butane, 2-bromo- (78-76-2)

Sicherheit

Kennzeichnung gefährlicher	F,Xi
R-Sätze:	11-36/37/38-10-52
S-Sätze:	16-23-24/25-37/39-26
RIDADR	UN 2339 3/PG 2
WGK Germany	2
RTECS-Nr.	EJ6228000
Selbstentzündungstemperatur	265 °C
Hazard Note	Irritant/Highly Flammable
TSCA	Yes
HazardClass	3
PackingGroup	II
HS Code	29033036
Giftige Stoffe Daten	78-76-2(Hazardous Substances Data)

Gefahreninformationscode (GHS)

2-Bromobutane Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R11:Leichtentzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R10:Entzündlich.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S24/25:Berührung mit den Augen und der Haut vermeiden.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
Chemische Eigenschaften
colourless liquid with a pleasant odour
Verwenden
2-Bromobutane is utilized in the synthesis of non-nucleosides. It is used as a solvent as well as an intermediate in organic synthesis. It is an important raw material used to prepare Grignard reagent by reacting with magnesium. Further, it reacts with hydrocyanic acid to prepare sodium salt to get (+-)-sec-butyl cyanide. It is an important raw material used to prepare Grignard reagent by reacting with magnesium.
Verwenden
2-Bromobutane is used in the various organic synthesis, existing as a grignard reagent.
Allgemeine Beschreibung
A colorless to pale-yellow colored liquid with a pleasant odor. Flash point 65°F. Insoluble in water and denser than water. Vapors are heavier than air and may be narcotic in high concentrations. Used to make other chemicals.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
Halogenated aliphatic compounds, such as 2-Bromobutane , are moderately or very reactive. Reactivity generally decreases with increased degree of substitution of halogen for hydrogen atoms. Low molecular weight haloalkanes are highly flammable and can react with some metals to form dangerous products. Materials in this group are incompatible with strong oxidizing and reducing agents. Also, they are incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides. Gives toxic fumes of bromine when burned.
Hazard
Narcotic in high concentration. Flammable, dangerous fire risk.
Health Hazard
Irritating to eyes, nose, throat, upper respiratory tract, and skin. Symptoms of exposure include burning sensation, coughing, wheezing, laryngitis, shortness of breath, headache, nausea, and vomiting.
Sicherheitsprofil
Narcotic in high concentrations. Questionable carcinogen with experimental neoplastigenic data. See also BROMIDES and CHLORINATED HYDROCARBONS, ALIPHATIC. Flammable liquid. Dangerous fire hazard when exposed to heat or flame. When heated to decomposition it emits toxic fumes of Br-; can react with oxidzing materials. To fight fire, use water, spray or mist, foam, Co2, dry chemical.
läuterung methode
Wash 2-bromobutane with conc HCl, water, 10% aqueous NaHSO3, and then water. Dry it with CaCl2, Na2SO4 or anhydrous K2CO3, and fractionally distil it through a 1m glass helices packed column. [Beilstein 1 IV 261.]

2-Bromobutane Upstream-Materialien And Downstream Produkte

2-Brombutan Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

78-76-2, 2-Bromobutane Verwandte Suche:

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