Strontiumiodid

Bezeichnung:Strontiumiodid

CAS-Nr10476-86-5

Englisch Name:STRONTIUM IODIDE

CBNumberCB0725059

SummenformelI2Sr

Molgewicht341.43

MOL-Datei10476-86-5.mol

Synonyma

Strontiumiodid

Strontiumiodid physikalisch-chemischer Eigenschaften

Schmelzpunkt	515 °C (lit.)
Siedepunkt	1773 °C/1 atm (lit.)
Dichte	4.55 g/mL at 25 °C (lit.)
Aggregatzustand	beads
Farbe	White to pale yellow
Wichte	4.55
Wasserlöslichkeit	Soluble in water and ethanol.
Sensitive	Hygroscopic
Merck	14,8844
CAS Datenbank	10476-86-5(CAS DataBase Reference)
EPA chemische Informationen	Strontium iodide (SrI2) (10476-86-5)

Sicherheit

Kennzeichnung gefährlicher	C
R-Sätze:	14-34
S-Sätze:	22-26-27-36/37/39-45
RIDADR	UN 3260 8/PG 2
WGK Germany	3
RTECS-Nr.	WK9275000
F	3-8
TSCA	Yes

Gefahreninformationscode (GHS)

STRONTIUM IODIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R14:Reagiert heftig mit Wasser.
R34:Verursacht Verätzungen.
S-Sätze Betriebsanweisung:
S22:Staub nicht einatmen.
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S27:Beschmutzte, getränkte Kleidung sofort ausziehen.
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).
Beschreibung
Strontium iodide (SrI2) is an ionic, water-soluble, deliquescent compound that has been used in medicine as a substitute for potassium iodide. Strontium iodide crystals are colorless, transparent, hexagonal in structure, and have a bitter, saline taste. Soluble in 0.6 part of water at 15°C, they are also soluble in alcohol.
Strontium iodide can be prepared by reacting strontium carbonate with hydroiodic acid:
SrCO3＋2HI→SrI2＋H2O＋CO2
Strontium iodide turns yellow when exposed to air due to the formation of iodine at the surface of the crystals. At high temperatures (when in the presence of air), strontium iodide completely decomposes to form strontium oxide and free iodine.
Several hydrates are known including SrI2·6H2O. This salt is a white crystalline substance composed of small plates. It decomposes in moist air due to its deliquescence. Its specific gravity varies from 4.415 g/cm3 to 4.549 g/cm3, depending upon how the crystals are formed. It loses water at 78°C and the anhydrate forms above 200°C. The melting point of SrI2 is 507°C and its boiling point is 645°C where it decomposes to the oxide and iodine.
Chemische Eigenschaften
White to yellowish white crystalline powder
Verwenden
Strontium iodide is a yellowish granular powder made by treating strontium carbonate with hydriodic acid. It is soluble in water, alcohol, and ether. Strontium iodide was occasionally used to increase contrast in collodion emulsions.
Verwenden
Medicine (source of iodine), intermediate.
Verwenden
Strontium iodide (SrI2) is made by treating strontium carbonate with hydrochloric acid. It is used as a medicinal source of iodine.
Hazard
Toxic by ingestion and inhalation.

Strontiumiodid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

10476-86-5, STRONTIUM IODIDE Verwandte Suche:

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