Holmiumtrifluorid

Bezeichnung:Holmiumtrifluorid

CAS-Nr13760-78-6

Englisch Name:HOLMIUM FLUORIDE

CBNumberCB7202223

SummenformelF3Ho

Molgewicht221.93

MOL-Datei13760-78-6.mol

Synonyma

Holmiumtrifluorid

Holmiumtrifluorid physikalisch-chemischer Eigenschaften

Schmelzpunkt

1143°C

Siedepunkt

>2200°C

Dichte

7,64 g/cm³

Brechungsindex

1.53

Löslichkeit

soluble in H2O

Aggregatzustand

powder

Farbe

pink-yellow orthorhombic crystals, crystalline; hygroscopic

Wasserlöslichkeit

Insoluble in water.

Sensitive

Hygroscopic

Crystal Structure

YF3 type

crystal system

Nogata

Space group

Pnma

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.641	0.687	0.438	90	90	90	0.193

Expositionsgrenzwerte

ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3

CAS Datenbank

13760-78-6(CAS DataBase Reference)

EPA chemische Informationen

Holmium fluoride (HoF3) (13760-78-6)

Sicherheit

Kennzeichnung gefährlicher	T
R-Sätze:	23/24/25-32
S-Sätze:	26-36/37/39-45
RIDADR	UN 3288 6.1/PG 3
WGK Germany	3
Hazard Note	Hygroscopic
TSCA	Yes
HazardClass	6.1
PackingGroup	III
HS Code	2826199090

Gefahreninformationscode (GHS)

HOLMIUM FLUORIDE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R23/24/25:Giftig beim Einatmen, Verschlucken und Berührung mit der Haut.
R32:Entwickelt bei Berührung mit Säure sehr giftige Gase.
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
Bright-yellow solid. Insoluble in water.
Verwenden
Dysprosium is most commonly used as in Neodymium-iron-boron high strength permanent magnets. While it has one of the highest magnetic moments of any of the rare earths (10.6uB), this has not resulted in an ability to perform on its own as a practical alternative to Neodymium compositions.
It is however now an essential additive in NdFeB production. It is also used in special ceramic compositions based on BaTiO formulations.
Dysprosium is used, in conjunction with Vanadium and other elements, in making laser materials and commercial lighting. Nanofibers of Dysprosium compounds have high strength and large surface area. Therefore, they can be used to reinforce other materials and as a catalyst.
Recent research has examined the use of Dysprosium in Dysprosium-iron-garnet (DyFeG) and silicon implanted with Dysprosium and Holmium to form donor centers.
Dysprosium Metal is an important additive for NdFeB permanent magnets to raise the Curie temperature and improve temperature coefficiency. Another most promising use of high purity Dysprosium Metal is in the magnetostrictive alloy TEFENOL-D. There are also other applications for some special master alloys. It is highly susceptible to magnetization, they are employed in various data-storage applications, such as in hard disks.
Verwenden
Holmium(III) fluoride is used as an intermediate in the manufacture of glass, metal halide lamp and dopant to garnet laser. It is employed in metallurgy, chemical and physical vapor deposition and in some optical coatings.

HOLMIUM FLUORIDE Upstream-Materialien And Downstream Produkte

Holmiumtrifluorid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

13760-78-6, HOLMIUM FLUORIDE Verwandte Suche:

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