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Bariumoxid, bei der Kalzinierung von Witherit gewonnen Produkt Beschreibung

BARIUM OXIDE Struktur
1304-28-5
CAS-Nr.
1304-28-5
Bezeichnung:
Bariumoxid, bei der Kalzinierung von Witherit gewonnen
Englisch Name:
BARIUM OXIDE
Synonyma:
Baryta;Barsito;Oxobarium;BARIUM OXIDE;oxydedebaryum;calcinedbaryta;BARIUM MONOXIDE;bariumprotoxide;Calcined baryta;Oxyde de baryum
CBNumber:
CB6391366
Summenformel:
BaO
Molgewicht:
153.33
MOL-Datei:
1304-28-5.mol

Bariumoxid, bei der Kalzinierung von Witherit gewonnen Eigenschaften

Schmelzpunkt:
1920 °C
Siedepunkt:
2000 °C
Dichte
5.72 g/mL at 25 °C(lit.)
Brechungsindex
1.98
Aggregatzustand
Powder
Farbe
Light yellow-greenish to grayish
Wichte
5.72
Wasserlöslichkeit
Sparingly soluble in water. Soluble in ethanol, dilute mineral acids and alkali.
Sensitive 
Moisture Sensitive
Merck 
14,986
Stabilität:
Stable. Incompatible with strong acids, water. Protect from moisture.
CAS Datenbank
1304-28-5(CAS DataBase Reference)
EPA chemische Informationen
Barium oxide (1304-28-5)
Sicherheit
  • Risiko- und Sicherheitserklärung
  • Gefahreninformationscode (GHS)
Kennzeichnung gefährlicher T
R-Sätze: 20-25-34
S-Sätze: 26-36/37/39-45
RIDADR  UN 1884 6.1/PG 3
WGK Germany  1
RTECS-Nr. CQ9800000
3-9-34
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  28164000
Bildanzeige (GHS)
Alarmwort Achtung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H301 Giftig bei Verschlucken. Akute Toxizität oral Kategorie 3 Achtung P264, P270, P301+P310, P321, P330,P405, P501
H302 Gesundheitsschädlich bei Verschlucken. Akute Toxizität oral Kategorie 4 Warnung P264, P270, P301+P312, P330, P501
H314 Verursacht schwere Verätzungen der Haut und schwere Augenschäden. Ätzwirkung auf die Haut Kategorie 1B Achtung P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501
H332 Gesundheitsschädlich bei Einatmen. Akute Toxizität inhalativ Kategorie 4 Warnung P261, P271, P304+P340, P312
Sicherheit
P260 Dampf/Aerosol/Nebel nicht einatmen.
P261 Einatmen von Staub vermeiden.
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P270 Bei Gebrauch nicht essen, trinken oder rauchen.
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.
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 Möglichkeit entfernen. Weiter spülen.

Bariumoxid, bei der Kalzinierung von Witherit gewonnen Chemische Eigenschaften,Einsatz,Produktion Methoden

ERSCHEINUNGSBILD

GELBLICH-WEISSER FESTSTOFF IN VERSCHIEDENEN FORMEN.

CHEMISCHE GEFAHREN

Mittelstarke Base in wässriger Lösung. Reagiert sehr heftig mit Wasser, Distickstofftetraoxid, Hydroxylamin, Schwefeltrioxid und Schwefelwasserstoff unter Feuer- und Explosionsgefahr.

ARBEITSPLATZGRENZWERTE

TLV: (als Ba) 0.5 mg/m?(als TWA); Krebskategorie A4 (nicht klassifizierbar als krebserzeugend für den Menschen); (ACGIH 2005).
MAK: (als Ba) (Einatembare Fraktion) 0.5 mg/m? Spitzenbegrenzung: überschreitungsfaktor II(2); (DFG 2005).

AUFNAHMEWEGE

Aufnahme in den Körper durch Inhalation des Aerosols und durch Verschlucken.

INHALATIONSGEFAHREN

Verdampfung bei 20°C vernachlässigbar; eine gesundheitsschädliche Partikelkonzentration in der Luft kann jedoch beim Dispergieren schnell erreicht werden.

WIRKUNGEN BEI KURZZEITEXPOSITION

WIRKUNGEN BEI KURZZEITEXPOSITION:
Die Substanz reizt die Augen, die Haut und die Atemwege. Möglich sind Auswirkungen auf das Nervensystem. Exposition kann zu Kaliummangel mit nachfolgenden Herz- und Muskelerkrankungen führen. Exposition kann zum Tod führen.

LECKAGE

Verschüttetes Material in Behältern sammeln. Reste sorgfältig sammeln. An sicheren Ort bringen. NICHT in die Umwelt gelangen lassen. Persönliche Schutzausrüstung: Atemschutzgerät, P2-Filter für schädliche Partikel.

R-Sätze Betriebsanweisung:

R20:Gesundheitsschädlich beim Einatmen.
R25:Giftig beim Verschlucken.
R34:Verursacht Verätzungen.

S-Sätze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).

Chemische Eigenschaften

Barium oxide is a white to yellowish-white, odorless powder.
Barium oxide

Chemische Eigenschaften

Strontium fluoride, SrF2, also called strontium difluoride and strontium(II) fluoride, is a fluoride of strontium. It is a stable brittle white crystalline solid. It forms face-centered cubic crystals, with structure of calcium fluoride. It is almost insoluble in water.

Physikalische Eigenschaften

Barium Oxide is a white, hygroscopic formed by the burning of Ba metal in oxygen or the decomposition of the carbonate salt:
2Ba+ O2→2BaO
BaCO3→BaO+ CO2
It transforms into the hydroxide on contact with water.
BaO+H2O→Ba(OH)2
It is soluble in ethanol, dilute acids and alkalis but insoluble in acetone and liquid ammonia.
The monoxide is formed when the metal burns in air, but is usually prepared by the ignition of the nitrate, oxygen and oxides of nitrogen being liberated. It can also be obtained by the ignition of an intimate mixture of the carbonate and carbon, and in small quantities by the ignition of the iodate.

Verwenden

Barium oxide is used as a coating for “hot cathodes” in a variety of electronic devices such as TV’s and lamps. It replaced lead oxide in the production of certain kinds of glass. While lead oxide raised the refractive index of the glass, it also raised the dispersion, i.e refraction of various colors of light resulting in distortion of images which barium oxide does not alter. Barium oxide also has use as an ethoxylation catalyst in the reaction of ethylene oxide and alcohols which takes place between 150 and 200°C.
The thermionic emission from thin evaporated films of barium oxide has been studied extensively. Thin barium oxide films have a good emission following evaporation. The emission improves a little during heat treatment, and is then similar to that from a sprayed cathode coating of barium oxide.

Verwenden

Strontium fluoride is used as an optical material transparent from vacuum ultraviolet (150 nm) to infrared (11 μm) for a small range of special applications. Its optical properties are intermediate to calcium fluoride and barium fluoride. It is also used as an optical coating on lenses.

Verwenden

Porous grades are marketed especially for drying gases and solvents (particularly alcohols, aldehydes and petroleum solvents). Swells, but does not become sticky upon absorption of moisture. Used in manufacture of lubricating oil detergents. Also used for making barium methoxide.

synthetische

Barium oxide is made by heating barium carbonate with coke, carbon black or tar:
BaCO3 + C→ BaO + 2CO

It may be also prepared by thermal decomposition of barium nitrate.

Vorbereitung Methode

Strontium fluoride is prepared by reaction of strontium chloride with fluorine gas, by action of hydrofluoric acid on strontium carbonate, or by addition of potassium chloride to strontium chloride solution. It irritates eyes and skin, and is harmful when inhaled or ingested.

Definition

A barium-containing ore.

Definition

barium oxide: A white or yellowishsolid, BaO, obtained by heating bariumin oxygen or by the thermal decompositionof barium carbonate ornitrate; cubic; r.d. 5.72; m.p. 1923°C;b.p. 2000°C. When barium oxide isheated in oxygen the peroxide, BaO2,is formed in a reversible reactionthat was once used as a method forobtaining oxygen (the Brin process).Barium oxide is now used in themanufacture of lubricating-oil additives.

Allgemeine Beschreibung

A white to yellow powder. May be toxic by ingestion. Irritates skin, eyes and mucous membranes. Used as a drying agent for gasoline and solvents.

Air & Water Reaktionen

Hygroscopic. Reacts readily and exothermically with water to form a solution of corrosive barium hydroxide [Merck 11th ed. 1989].

Reaktivität anzeigen

BARIUM OXIDE reacts as a strong base. Combines exothermically with all categories of acids. Reacts with carbon dioxide to form barium carbonate [Merck 11th ed. 1989]. Ignites hydroxylamine on contact [Mellor 8:291 1946-47]. Mixtures with mercurous or nickel oxide react vigorously with hydrogen sulfide in air. Explosions may result [Mellor 10:140 1946-47]. Can react, particularly in the presence of moisture, with aluminum and zinc)to form oxides or hydroxides of the metal and generate gaseous hydrogen. May initiate polymerization reactions in polymerizable organic compounds, especially epoxides. May generate flammable and/or toxic gases with ammonium salts, nitrides, halogenated organics, peroxides, and hydroperoxides.

Hazard

Toxic by ingestion. See barium.

Health Hazard

TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Brandgefahr

Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes. Vapors may accumulate in confined areas (basement, tanks, hopper/tank cars etc.). Substance will react with water (some violently), releasing corrosive and/or toxic gases and runoff. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.

Sicherheitsprofil

A poison via subcutaneous route. See also BARIUM COMPOUNDS (soluble). Combustible by spontaneous chemical reaction; produces heat on contact with water or steam. Reacts with H2O, Ba(OH)2. Incompatible with H2S, hydroxylamine, N2O4, triuranium octaoxide, so3.

mögliche Exposition

It is used to dry gases and solvents and in producing detergents for lubricating oils.

Versand/Shipping

UN1884 Barium oxide, Hazard Class: 6.1; Labels: 6.1—Poisonous materials.

Inkompatibilitäten

Reacts with water, forming the strong base, barium hydroxide. Keep away from acids, hydrogen sulfide, carbon dioxide; hydroxylamine, nitrogen tetroxide; sulfur trioxide; since violent reactions occur. Reacts with triuranium. Never pour water into this chemical.

Bariumoxid, bei der Kalzinierung von Witherit gewonnen Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Bariumoxid, bei der Kalzinierung von Witherit gewonnen Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

Global( 147)Lieferanten
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1304-28-5(Bariumoxid, bei der Kalzinierung von Witherit gewonnen)Verwandte Suche:


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  • BARIUM OXIDE
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