Tellurtetrabromid
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- CAS-Nr.
- 10031-27-3
- Bezeichnung:
- Tellurtetrabromid
- Englisch Name:
- TELLURIUM TETRABROMIDE
- Synonyma:
- Einecs 233-090-7;TELLURIUM BROMIDE;Tellurium(Ⅳ) bromide;TELLURIUM TETRABROMIDE;TELLURIUM (IV) BROMIDE;Tellurium bromide(TeBr4);Tellurium(IV) tetrabromide;Tellurium Bromide, 99.999%;TelluriuM BroMide, -4 Mesh;TELLURIUM TETRABROMIDE 99%
- CBNumber:
- CB1495676
- Summenformel:
- Br4Te
- Molgewicht:
- 447.22
- MOL-Datei:
- 10031-27-3.mol
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Tellurtetrabromid Eigenschaften
- Schmelzpunkt:
- ~380 °C(lit.)
- Siedepunkt:
- 420 °C(lit.)
- Dichte
- 4.3 g/mL at 25 °C(lit.)
- Flammpunkt:
- 420°C
- L?slichkeit
- reacts with H2O; soluble in ethyl ether
- Aggregatzustand
- beads
- Farbe
- yellow-orange monoclinic
crystals, crystalline
- Wasserl?slichkeit
- It reacts with water and ethanol.
- Sensitive
- Moisture Sensitive
- Merck
- 14,9125
- Expositionsgrenzwerte
- ACGIH: TWA 0.1 mg/m3
NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3
- CAS Datenbank
- 10031-27-3(CAS DataBase Reference)
- EPA chemische Informationen
- Tellurium bromide (TeBr4), (T-4)- (10031-27-3)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
| Kennzeichnung gef?hrlicher |
C |
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| R-S?tze: |
34 |
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| S-S?tze: |
22-26-27-36/37/39-45 |
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| RIDADR |
UN 3260 8/PG 2 |
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| WGK Germany |
3 |
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| TSCA |
Yes |
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| HazardClass |
8 |
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| PackingGroup |
II |
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| Bildanzeige (GHS) |
 
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| Alarmwort |
Achtung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H300 |
Lebensgefahr bei Verschlucken. |
Akute Toxizit?t oral |
Kategorie 2 |
Achtung |
![GHS hazard pictograms]() src="/GHS06.jpg" width="20" height="20" /> |
P264, P270, P301+P310, P321, P330,P405, P501 |
| H314 |
Verursacht schwere Ver?tzungen der Haut und schwere Augensch?den. |
?tzwirkung auf die Haut |
Kategorie 1B |
Achtung |
![GHS hazard pictograms]() src="/GHS05.jpg" width="20" height="20" /> |
P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 |
| H318 |
Verursacht schwere Augensch?den. |
Schwere Augensch?digung |
Kategorie 1 |
Achtung |
![GHS hazard pictograms]() src="/GHS05.jpg" width="20" height="20" /> |
P280, P305+P351+P338, P310 |
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| Sicherheit |
| P280 |
Schutzhandschuhe/Schutzkleidung/Augenschutz tragen. |
| P303+P361+P353 |
BEI BERüHRUNG MIT DER HAUT (oder dem Haar): Alle kontaminierten Kleidungsstücke sofort ausziehen. Haut mit Wasser abwaschen oder duschen. |
| P305+P351+P338 |
BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen. |
| P310 |
Sofort GIFTINFORMATIONSZENTRUM/Arzt/ anrufen. |
| P405 |
Unter Verschluss aufbewahren. |
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Tellurtetrabromid Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R34:Verursacht Ver?tzungen.
S-S?tze Betriebsanweisung:
S22:Staub nicht einatmen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S27:Beschmutzte, getr?nkte Kleidung sofort ausziehen.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn m?glich, dieses Etikett vorzeigen).
Chemische Eigenschaften
Yellow crystals. Soluble in a little water (decomposes in excess
water).
Verwenden
Tellurium tetrabromide?it acts as a chemical and organic intermediate. It is also acts a conductor.
synthetische
Pure Te (5 g.) is introduced through adapter a into the elongated reaction flask A of the apparatus shown in Fig.1. Adapter a is connected to a N2 purification train which furnishes either pure dry N2 or N2 containing bromine vapor. For the latter, the gas stream may be passed through a wash bottle containing dry Br2 , followed by a U tube containing P2O5-glass wool. First, the apparatus in purged with pure N2. Then A is cooled with ice water and the N2 -Br2 mixture is introduced. A portion of the Br2 condenses on the Te and reacts quietly with it, while the remainder is retained in the empty U tube D, cooled with an ice-salt mixture. The difference between the weight loss of the Br2 wash bottle and the weight of the condensate in D indicates the amount of bromine remaining in A. When this becomes about twice the amount needed for quantitative conversion to TeBr4, the gas stream is interrupted, stopcock C is closed, and the product slurry is allowed to stand at room temperature for several hours (better overnight) in order to complete the reaction. Then C is reopened and the excess bromine is purged by a stream of N2 while A is simultaneously heated to 50℃. To purify the product, it is sublimed in vacuum. Gas inlet tube a is sealed off at d, the whole apparatus is tilted to a horizontal position, and ground glass joint E is connected to an aspirator through a P2O5 drying tube. During evacuation, A is heated to sublimation temperature (about 350℃) with an electric furnace. Any black condensate which may separate in B at 200℃ is vaporized by heating with a burner. The subsequently deposited yellow to orange-red powder is quite pure TeBr4; if necessary, this can be further purified by an analogous sublimation in high vacuum.
Tellurtetrabromid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Tellurtetrabromid Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 66)Lieferanten
10031-27-3(Tellurtetrabromid)Verwandte Suche:
- TELLURIUM BROMIDE
- TELLURIUM (IV) BROMIDE
- TELLURIUM TETRABROMIDE
- (beta-4)-telluriumbromide(tebr4
- Tellurium(IV) bromide (99.9%-Te)
- TelluriumIVbromidemeshpowder
- TELLURIUM TETRABROMIDE ANHYDROUS BEAD&
- TELLURIUM TETRABROMIDE 99%
- TELLURIUM TETRABROMIDE, ANHYDROUS, POWDE R, 99.999%
- Tellurium(Ⅳ) bromide
- tellurium(iv) bromide, ultra dry
- Tellurium(IV) bromide, ultra dry, 99.999% (metals basis)
- Tellurium(IV) bromide, 99.9% (metals basis)
- Tellurium bromide(TeBr4)
- Tellurium(IV) tetrabromide
- Tellurium Bromide, 99.999%
- Einecs 233-090-7
- Tellurium bromide (tebr4), (T-4)-
- TelluriuM BroMide, -4 Mesh
- 10031-27-3
- TeBr4
- Br4Te
- Precursors by Metal
- Tellurium
- Vapor Deposition Precursors
- metal halide
