Holmiumtrichlorid

Bezeichnung:Holmiumtrichlorid

CAS-Nr10138-62-2

Englisch Name:Holmium chloride

CBNumberCB0255341

SummenformelCl3Ho

Molgewicht271.29

MOL-Datei10138-62-2.mol

Synonyma

Holmiumtrichlorid

Holmiumtrichlorid physikalisch-chemischer Eigenschaften

Schmelzpunkt

718 °C(lit.)

Siedepunkt

1500°C

Dichte

3,7 g/cm³

storage temp.

under inert gas (nitrogen or Argon) at 2-8°C

Löslichkeit

soluble in H2O

Aggregatzustand

powder

Farbe

Off-white to pink

Wasserlöslichkeit

Soluble in water.

Crystal Structure

AlCl3 type

Sensitive

Hygroscopic

Merck

14,4727

crystal system

Monoclinic

Space group

C2/m

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.685	1.185	0.639	90	110.8	90	0.485

Stabilität

hygroscopic

CAS Datenbank

10138-62-2(CAS DataBase Reference)

EPA chemische Informationen

Holmium chloride (HoCl3) (10138-62-2)

Sicherheit

Kennzeichnung gefährlicher	Xi
R-Sätze:	36/37/38
S-Sätze:	26-37/39
WGK Germany	3
RTECS-Nr.	MS7350000
TSCA	Yes
HS Code	28469000
Toxizität	mouse,LD50,intraperitoneal,312mg/kg (312mg/kg),BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)BEHAVIORAL: FOOD INTAKE (ANIMAL)LUNGS, THORAX, OR RESPIRATION: OTHER CHANGES,Archives of Environmental Health. Vol. 5, Pg. 437, 1962.

Gefahreninformationscode (GHS)

Holmium chloride Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
Yellow monoclinic crystals; hygroscopic; density 3.7 g/cm3 ; melts at 718°C; vaporizes at 1,500°C; readily dissolves in water.
Physikalische Eigenschaften
Yellow monoclinic crystals; hygroscopic; density 3.7 g/cm³; melts at 718°C;vaporizes at 1,500°C; readily dissolves in water.
Verwenden
Holmium chloride is an intermediate for preparing holmium metal.
Verwenden
Holmium(III) chloride has many application in the field of nuclear industry, lasers research applications. It is also employed in calibration of optical spectrophotometers.
synthetische
Holmium chloride is obtained from rare-earth minerals. Recovery steps are discussed above (see Holmium). The rare-earth mineral is cracked by acid attack by heating with hydrochloric acid. The water-soluble chloride salt is filtered and separated from insoluble residues. The hydrated chloride salt is heated at 350°C in a current of hydrogen chloride to yield anhydrous HoCl3 . Heating in air in the absence of hydrogen chloride yields holmium oxychloride, HoOCl. Holmium chloride may be purified by distillation or vacuum sublimation.
Holmium chloride also can be prepared by heating holmium oxide with ammonium chloride:
Ho2O3 + 6NH4Cl-->2HoCl3 + 6NH3 + 3H2O
reaction suitability
reagent type: catalyst
core: holmium

Holmiumtrichlorid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

10138-62-2, Holmium chloride Verwandte Suche:

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