Grundinformationen
- CAS
1304-28-5- Standard-SMILES
[O]=[Ba]- InChIKey
QVQLCTNNEUAWMS-UHFFFAOYSA-N- Summenformel
- BaO
- Durchschnittliche Molmasse
- 153,33 g/mol
- Monoisotopische Masse
- 153,90016182
Überblick
Barium oxide appears as 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.
Namen und Bezeichner
- Bevorzugter Name
- Barium oxide
- IUPAC
- oxobarium
- Lokaler Name
- Bariumoxid, bei der Kalzinierung von Witherit gewonnen
- Englischer Name
- Barium oxide
- Summenformel
- BaO
- Molmasse
- 153.33
Namen und Synonyme
BARIUM OXIDE1304-28-5oxobariumBarytaBarium monoxideCalcined barytaBarium protoxideBarium oxide (BaO)Oxyde de baryumDTXSID2089323477603K202BRefChem:116544
Weitere Namen anzeigen
BARIUM (II) OXIDEBarsitooxydedebaryumcalcinedbarytabariumprotoxide
DTXCID501323167215-127-9Barium oxide, obtained by calcining witheriteMFCD00003453Oxyde de baryum [French]EINECS 215-127-9UN1884Baria
Datenbank-Bezeichner
- CAS
1304-28-5- PubChem CID
- 62392
- DTXSID
DTXSID20893234- EC Number
- 215-127-9
- Nikkaji
- J43.682H
Eigenschaften
Berechnete Struktureigenschaften
- Polarare Oberfläche (TPSA)
- 17,1 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 1
- Frei drehbare Bindungen
- 0
- Schwere Atome
- 2
- Formalladung
- 0
- Komplexität
- 2
Experimentelle und physikochemische Eigenschaften
Chemical Classes
Metals -> Metals, Inorganic Compounds
Reactive agents - 2nd degree
SpringerMaterials Propertiesphonon wavenumber
Density
5.7 g/cm³
5.72 @25 °C
SolubilitySolubility in water, g/100ml at 20 °C: 3.8
Boiling Point~2000 °C
Melting Point
1923 °C
1973 °C
Physical Description
Barium oxide appears as 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.
Large Crystals; CBI; Other Solid
White to yellowish-white solid; Soluble in water; [Merck Index] Beige powder; [Aldrich MSDS]
YELLOWISH-WHITE SOLID IN VARIOUS FORMS.
Physikochemische Eigenschaften
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
GHS-Klassifizierung
GHS Classification
This chemical does not meet GHS hazard criteria for 1.4% (5 of 359) of reports.
Danger
H271 (36.8%): May cause fire or explosion; strong Oxidizer [Danger Oxidizing liquids; Oxidizing solids]
P210, P220, P260, P261, P264, P264+P265, P270, P271, P280, P283, P301+P316, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P351+P338, P305+P354+P338, P306+P360, P316, P317, P321, P330, P332+P317, P337+P317, P362+P364, P363, P370+P378, P371+P380+P375, P405, P420, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 359 reports by companies from 18 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Danger
Gefahrenhinweise
Regulatory Information
Chemical: Barium oxide (BaO)
Barium oxide (BaO) is listed on the EPA's Chemical Data Reporting (CDR) system. Manufacturers and importers of Barium oxide (BaO) are required to report information about their production and use of this chemical to the EPA under the Toxic Substances Control Act (TSCA). (40 eCFR Part 711)
Status: Active Update: 06-04-2020 https://echa.europa.eu/registration-dossier/-/registered-dossier/13409
Barium oxide, anhydrous: Does not have an individual approval but may be used under an appropriate group standard
The New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.)
DOT LabelPoison
Fire Hazards
Excerpt from ERG Guide 157 [Substances - Toxic and/or Corrosive (Non-Combustible / Water-Sensitive)]:
· Non-combustible, substance itself does not burn but may decompose upon heating to produce corrosive and/or toxic fumes.
Chemie und Industrie
Pharmakologische Informationen
Metabolism/Metabolites
Barium compounds are absorbed via ingestion and inhalation, the extent of which depends on the individual compound. In the body, the majority of the barium is found in the bone, while small amounts exists in the muscle, adipose, skin, and connective tissue. Barium is not metabolized in the body, but it may be transported or incorporated into complexes or tissues. Barium is excreted in the urine and faeces. (L214)
Verwendung und Herstellung
Uses
Used to dry gases and solvents and to make lubricating oil detergents and barium methoxide; [Merck Index] Used as a drying agent for gasoline and solvents; [CAMEO]
Petroleum Production and Refining [Category: Industry]
Barium oxide is used as a coating for hot cathodes, in cathode ray tubes, and in the production of certain kinds of glass, such as optical crown glass. (L208)
U.S. Production2023: 1,000,000 - <5,000,000 lb
Consumer UsesOther
Industry UsesOther
General Manufacturing Information
All Other Basic Inorganic Chemical Manufacturing
Barium oxide (BaO): ACTIVE
Anwendungen
VerwendenBarium 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.
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