Bariumbromid

Bezeichnung:Bariumbromid

CAS-Nr10553-31-8

Englisch Name:BARIUM BROMIDE

CBNumberCB2204828

SummenformelBaBr2

Molgewicht297.14

MOL-Datei10553-31-8.mol

Synonyma

Bariumbromid

Bariumbromid physikalisch-chemischer Eigenschaften

Schmelzpunkt	850 °C
Siedepunkt	1835°C
Dichte	4,781 g/cm³
Aggregatzustand	beads
Wichte	4.781
Farbe	White
Wasserlöslichkeit	Soluble in water
Sensitive	Hygroscopic
Merck	14,968
Expositionsgrenzwerte	ACGIH: TWA 0.5 mg/m3 NIOSH: IDLH 50 mg/m3; TWA 0.5 mg/m3
Stabilität	Stable.
CAS Datenbank	10553-31-8(CAS DataBase Reference)
EPA chemische Informationen	Barium bromide (BaBr2) (10553-31-8)

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	20/22
S-Sätze:	28
RIDADR	UN 1564 6.1/PG 2
WGK Germany	1
TSCA	Yes
HazardClass	6.1
PackingGroup	III
HS Code	28275900

Gefahreninformationscode (GHS)

BARIUM BROMIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R20/22:Gesundheitsschädlich beim Einatmen und Verschlucken.
S-Sätze Betriebsanweisung:
S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).
Beschreibung
Barium bromide has the molecular formula of BaBr2. Like barium chloride, it is soluble in water but is toxic if ingested. BaBr2 crystallizes in a PbCl2 motif, as white orthorhombic crystals that are deliquescent. In aqueous solution, BaBr2 behaves as a simple salt.
Barium bromide can be crystallized from its solution as a dihydrate, BaBr2·2H2O (molecular weight: 333.19), which forms the anhydrate by heating to 120°C. It dissolves in its own water-of-hydration at 75°C before decomposing to the anhydrate.
Chemische Eigenschaften
White Crysatalline Powder
Physikalische Eigenschaften
White orthorhombic crystal; density of anhydrous BaCl2 4.78 g/cm³, and dihydrate BaCl2 ? 2H2O 3.58 g/cm³; melts at 857°C; vaporizes at 1,835°C; readily dissolves in water (92.2 g/100 g water at 0°C).
Verwenden
Barium bromide is a precursor to chemicals used in photography as well as to form other bromides.Historically, barium bromide was used to purify radium in a process of fractional crystallization devised by Marie Curie. Since radium precipitates preferentially in a solution of barium bromide, the ratio of radium to barium in the precipitate was found to be higher than the ratio in the solution.
Verwenden
Barium bromide, anhydrous is used as the chemical intermediate, and the spice cosmetics chemical additive. It is also used as pharmaceutical intermediate.
Verwenden
In the manufacture of other bromides; in the preparation of phosphors.
synthetische
Barium bromide can be prepared from barium sulfide or barium carbonate by reaction with hydrobromic acid to give hydrated barium bromide:
BaS＋HBr→BaBr2＋H2S
BaCO3＋HBr→BaBr2＋CO2＋H2O
Hazard
Ingestion of the salt or its aqueous solution can produce severe poisoning.

Bariumbromid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

10553-31-8, BARIUM BROMIDE Verwandte Suche:

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