Strontiumoxid

Bezeichnung:Strontiumoxid

CAS-Nr1314-11-0

Englisch Name:Strontium oxide

CBNumberCB8738918

SummenformelSrO

Molgewicht104.63

MOL-Datei1314-11-0.mol

Synonyma

Strontiumoxid

Strontiumoxid physikalisch-chemischer Eigenschaften

Schmelzpunkt

2430°C

Siedepunkt

3000°C

Dichte

4.7 g/mL at 25 °C (lit.)

Flammpunkt

3000°C

storage temp.

Sealed in dry,Room Temperature

Löslichkeit

Soluble in potassium hydroxide solution. Slightly soluble in alcohol. Insoluble in acetone and ether.

Aggregatzustand

Powder

Farbe

white

Wichte

4.7

Wasserlöslichkeit

Soluble in fused potassium hydroxide. Insoluble in ether and acetone. Decomposes in water to Sr(OH){2} with evolution of heat.Slightly soluble in alcohol. Insoluble in acetone and ether.

Crystal Structure

NaCl type

Sensitive

Moisture Sensitive

Merck

14,8846

crystal system

Cube

Space group

Fm3m

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.5113	0.5113	0.5113	90	90	90	0.1337

InChI

InChI=1S/O.Sr

InChIKey

UFQXGXDIJMBKTC-UHFFFAOYSA-N

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	14-34
S-Sätze:	26-30-36/37
RIDADR	UN 3262 8/PG 2
WGK Germany	3
TSCA	TSCA listed
HazardClass	8
PackingGroup	II
Speicherklasse	8A - Combustible corrosive hazardous materials
Hazard Classifications	Skin Corr. 1B

Gefahreninformationscode (GHS)

Strontium oxide Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R14:Reagiert heftig mit Wasser.
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S30:Niemals Wasser hinzugießen.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
Beschreibung
Strontium Oxide, SrO, is a metal oxide usually produced by the reaction of strontium with oxygen. It can also be prepared by the decomposition of heated strontium carbonate, hydroxide, or nitrate and is used in manufacturing other strontium salts, in pigments, soaps and greases, and as a drying agent. It is commonly used in the glass, ceramics, and electronic industries and has other specific uses, such as fuel cells and sputtering target material. If burn strontium under general conditions with air, strontium oxide and strontium nitride will form. Strontium oxide was once required by law as the material used on old TV face-plates to block harmful X-ray emissions. BaO and SrO were reported for the transesterification of palm oil for the production of biodiesel. The reaction was conducted under ultrasound conditions to ensure the effective production of biodiesel.
Chemische Eigenschaften
white to grayish white; reacts with water, forming Sr(OH)2, with evolution of heat; enthalpy of fusion 75.00kJ/mol [MER06] [CRC10]
Physikalische Eigenschaften
Strontium oxide or strontia, SrO, is formed when Sr metal reacts with oxygen:
2Sr＋ O2→2SrO
Burning strontium in air results in a mixture of strontium oxide and strontium nitride. It also forms from the decomposition of strontium carbonate SrCO3. It is a strongly basic oxide. It reacts with moisture forming the hydroxide and with carbon dioxide in the air to form the carbonate.
Verwenden
Strontium oxide is used as a flux in the making of glass for television tubes in place of barium oxide [CAS: 1304-28-5] BaO.
Verwenden
SrO is also used in medicine, pyrotechnics, pigments, greases, soaps, and as a chemical intermediate. It is also produced as high-purity strontium oxide rotatable sputtering targets with the highest possible density and smallest possible average grain sizes for use in semiconductor, photovoltaic, and coating applications by chemical vapor deposition and physical vapor deposition and optical applications.One of the reasons why rare metals are restrained from wide use in production is their high cost.
Verwenden
manufacture of strontium salts.
Flammability and Explosibility
Not classified
reaction suitability
reagent type: catalyst
core: strontium

Strontium oxide Upstream-Materialien And Downstream Produkte

Strontiumoxid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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