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Bariumfluorid

Barium fluoride Struktur
7787-32-8
CAS-Nr.
7787-32-8
Bezeichnung:
Bariumfluorid
Englisch Name:
Barium fluoride
Synonyma:
BariumFlouride;baryumfluorure;BARIUM FLUORIDE;Barium flupride;bariumdifluoride;Barium fluoride 99;Barium fluoride 99%;bariumfluoride(baf2);BARIUM (II) FLUORIDE;Barium fluoride, 98%
CBNumber:
CB6173780
Summenformel:
BaF2
Molgewicht:
175.32
MOL-Datei:
7787-32-8.mol

Bariumfluorid Eigenschaften

Schmelzpunkt:
1354 °C
Siedepunkt:
2260 °C(lit.)
Dichte
4.89 g/mL at 25 °C(lit.)
Dampfdruck
0Pa at 20℃
Brechungsindex
1.4741
Flammpunkt:
2260°C
storage temp. 
Store at +5°C to +30°C.
L?slichkeit
1.2g/l
Aggregatzustand
random crystals
Farbe
White
Wichte
4.89
Wasserl?slichkeit
1.6 g/L (20 ºC)
W?rmeleitf?higkeit
11.297 W/(m·K) (crystal)
Spezifische W?rmekapazit?t
Cp(crystal): 0.41 J/(g·K), at 25℃
Crystal Structure
CaF2 type
Sensitive 
Hygroscopic
Merck 
14,974
crystal system
Cube
Space group
Fm3m
Solubility Product Constant (Ksp)
pKsp: 6.74
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.620.620.629090900.238
Expositionsgrenzwerte
ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Dielectric constant
7.3600000000000003
Stabilit?t:
Stable. Incompatible with acids.
InChI
1S/Ba.2FH/h;2*1H/q+2;;/p-2
InChIKey
OYLGJCQECKOTOL-UHFFFAOYSA-L
SMILES
F[Ba]F
CAS Datenbank
7787-32-8(CAS DataBase Reference)
NIST chemische Informationen
Barium fluoride(7787-32-8)
EPA chemische Informationen
Barium fluoride (BaF2) (7787-32-8)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xn,T
R-S?tze: 20/22
S-S?tze: 28-28A
RIDADR  UN 2811 6.1/PG 3
WGK Germany  1
RTECS-Nr. CQ9100000
Hazard Note  Toxic
TSCA  TSCA listed
HazardClass  6.1
PackingGroup  III
HS Code  28261990
Speicherklasse 13 - Non Combustible Solids
Hazard Classifications Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Toxizit?t LD50 orally in Rabbit: 250 mg/kg
Bildanzeige (GHS) Exclamation Mark (GHS07)
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung P264, P280, P305+P351+P338,P337+P313P
H332 Gesundheitssch?dlich bei Einatmen. Akute Toxizit?t inhalativ Kategorie 4 Warnung P261, P271, P304+P340, P312
Sicherheit
P261 Einatmen von Staub vermeiden.
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P271 Nur im Freien oder in gut belüfteten R?umen verwenden.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P304+P340 BEI EINATMEN: Die Person an die frische Luft bringen und für ungehinderte Atmung sorgen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.
P312 Bei Unwohlsein GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
P337+P313 Bei anhaltender Augenreizung: ?rztlichen Rat einholen/?rztliche Hilfe hinzuziehen.

Bariumfluorid Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R20/22:Gesundheitssch?dlich beim Einatmen und Verschlucken.

S-S?tze Betriebsanweisung:

S28:Bei Berührung mit der Haut sofort abwaschen mit viel . . . (vom Hersteller anzugeben).

Beschreibung

Barium fluoride appears as colourless, odourless crystals/white powder and is slightly soluble in water but soluble in ethanol and methanol. When heated, barium fluoride decomposes and emits toxic fumes of fluorine and barium. Barium fluoride is used as a preopacifying agent and in enamel and glazing frits production. Its other use is in the production of welding agents (an additive to some fluxes, a component of coatings for welding rods and in welding powders). It is also used in metallurgy as a molten bath for refining aluminium.

Chemische Eigenschaften

Barium fluoride, BaF2, is a white crystal or powder.Under the microscope crystals may be clear and colorless. Barium fluoride is used commercially in combination with other fluorides for arc welding (qv) electrode fluxes.

Physikalische Eigenschaften

Barium fluoride (BaF2), also known as barium(II) fluoride, is a solid which can also be a transparent crystal. Its molecular weight is 175.34 g/mol. It occurs in nature as the mineral “Frankdicksonite”. It occurs as a white powder with a melting point of 1290 and a boiling point of 2259°C. It is slightly soluble in water (0.159 at 0.0°C and 0.162 g/100 ml of water at 20°C). The solid generally assumes the fluorite structure, but when subjected to high pressure, changes to the PbCl2 structure. In the vapor phase, the BaF2 molecule is nonlinear with an F–Ba–F angle of approximately 108°C.

Verwenden

Barium Fluoride is used in ceramic flux, carbon brushes for electrical equipment, glass making, in the manufacture of other fluorides, crystals for spectroscopy, electronics and dry-film lubricants. Barium Fluoride is used in spectroscopic components. Barium Fluoride is often suitable for applications in the passive IR band (8 to 14 m) and is often used as a viewport window for thermography.

Sicherheitsprofil

A poison by ingestion and intraperitoneal routes. Moderately toxic by subcutaneous route. An experimental teratogen. See also FLUORIDES and BARIUM COMPOUNDS (soluble). When heated to decomposition it emits toxic fumes of F-.

l?uterung methode

Wash it well with distilled H2O and dry it in a vacuum. Its solubility in H2O is 1.6g (10o), 1.6g (20o) and 1.62g (30o) per L, and is soluble in mineral acids and aqueous NH4Cl. It may be stored in glass bottles. [Kwasnik in Handbook of Preparative Inorganic Chemistry (Ed. Brauer) Academic Press Vol I p 234 1963.]

Structure and conformation

The space lattice of Barium fluoride (BaF2) belongs to the cubic system, and its calcium fluoride structure has a lattice constant of a=0.6187 nm and Ba–F=0.268 nm.

Bariumfluorid Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Bariumfluorid Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 354)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Chuanghai Biotechnology Co., Ltd
+86-15350571055
Sibel@chuanghaibio.com China 8738 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-86-13131129325
sales1@chuanghaibio.com China 5218 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29640 60
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21585 55
career henan chemical co
+86-0371-86658258
sales@coreychem.com China 29812 58
Hefei TNJ Chemical Industry Co.,Ltd.
+86-0551-65418671 +86-189 4982 3763
sales@tnjchem.com China 34563 58
Hebei Zhanyao Biotechnology Co. Ltd
15369953316 +8615369953316
admin@zhanyaobio.com China 2123 58
Dideu Industries Group Limited
+86-29-89586680 +86-15129568250
1059@dideu.com China 29093 58
Baoji Guokang Healthchem Co., Ltd.
+86-0917-3909592 +86-13892490616
gksales1@gk-bio.com China 9047 58
Baoji Guokang Healthchem co.,ltd
+8615604608665 15604608665
dominicguo@gk-bio.com CHINA 9414 58

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