Chromdiborid
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- CAS-Nr.
- 12007-16-8
- Bezeichnung:
- Chromdiborid
- Englisch Name:
- ChroMiuM boride
- Synonyma:
- CRB2;CRB2 K;boron,chromium;CHROMIUM BORIDE;CHROMIUM BORIDE;Einecs 234-499-3;Crumbs homolog 2;CHROMIUM DIBORIDE;ChromiumBoride,99%;chromiumboride(crb2)
- CBNumber:
- CB7197246
- Summenformel:
- B2Cr
- Molgewicht:
- 73.62
- MOL-Datei:
- 12007-16-8.mol
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Chromdiborid Eigenschaften
- Schmelzpunkt:
- 1550°C
- Dichte
- 5.15
- storage temp.
- -20°C
- Aggregatzustand
- Powder
- Farbe
- Gray
- Wasserl?slichkeit
- It is insoluble in water.
- Crystal Structure
- Hexagonal a = 292.9 pm c = 306.6 pm C32, hP3, P6/mmm, AlB2 type (Z = 1)
- Expositionsgrenzwerte
- NIOSH: TWA 0.0002 mg/m3
- Stabilit?t:
- Strongly corroded by molten metals such as Mg, Al, Na, Cu, Si, V, Cr, Mn, Fe, and Ni; corrosion resistant to liquid metals Cu, Zn, Sn, Rb, and Bi
- CAS Datenbank
- 12007-16-8(CAS DataBase Reference)
- EPA chemische Informationen
- Chromium boride (CrB2) (12007-16-8)
Sicherheit
- Risiko- und Sicherheitserkl?rung
- Gefahreninformationscode (GHS)
| Bildanzeige (GHS) |
  
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| Alarmwort |
Achtung |
| Gefahrenhinweise |
| Code |
Gefahrenhinweise |
Gefahrenklasse |
Abteilung |
Alarmwort |
Symbol |
P-Code |
| H317 |
Kann allergische Hautreaktionen verursachen. |
Sensibilisierung der Haut |
Kategorie 1A |
Warnung |
![GHS hazard pictograms]() src="/GHS07.jpg" width="20" height="20" /> |
P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 |
| H350 |
Kann Krebs verursachen. |
Karzinogenit?t |
Kategorie 1A |
Achtung |
![GHS hazard pictograms]() src="/GHS08.jpg" width="20" height="20" /> |
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| H410 |
Sehr giftig für Wasserorganismen mit langfristiger Wirkung. |
Langfristig (chronisch) gew?ssergef?hrdend |
Kategorie 1 |
Warnung |
![GHS hazard pictograms]() src="/GHS09.jpg" width="20" height="20" /> |
P273, P391, P501 |
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| Sicherheit |
| P261 |
Einatmen von Staub vermeiden. |
| P272 |
Kontaminierte Arbeitskleidung nicht au?erhalb des Arbeitsplatzes tragen. |
| P273 |
Freisetzung in die Umwelt vermeiden. |
| P280 |
Schutzhandschuhe/Schutzkleidung/Augenschutz tragen. |
| P302+P352 |
BEI BERüHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckm??ig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen. |
| P321 |
Besondere Behandlung |
| P333+P313 |
Bei Hautreizung oder -ausschlag: ?rztlichen Rat einholen/?rztliche Hilfe hinzuziehen. |
| P363 |
Kontaminierte Kleidung vor erneutem Tragen waschen. |
| P391 |
Verschüttete Mengen aufnehmen. |
| P501 |
Inhalt/Beh?lter ... (Entsorgungsvorschriften vom Hersteller anzugeben) zuführen. |
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Chromdiborid Chemische Eigenschaften,Einsatz,Produktion Methoden
Chemische Eigenschaften
-150, +325 mesh with 99.5% purity; refractory material; high melting point, very hard, very high corrosion resistance; used as metallurgical additive and as a sputtering target to produce films, which can be wear-resistant and semiconducting [KIR78] [HAW93] [CER91]
Verwenden
Chromium boride,is been used in plasma technology and for high-performance electrodes in electron microscopes, metal matrix composites (MMCs), cutting tools and cermets for machining aluminum. chromium diboride is recognised as offering superior performance in corrosive-wear environments. Chromium diboride thin films possess desirable combinations of properties, which are attractive for a wide range of potential industrial applications. As a wear-resistant component of weld materials and powders for spraying in engineering and metallurgy, Protection of outer surfaces and bearing surfaces of machine parts against abrasive wear by plasma spraying, In aluminum evaporators manufacturing and for aluminum electrolyzes repair work, In nuclear engineering as neutron absorption material.
Industrielle Verwendung
Chromium boride occurs as very hard crystallinepowder in several phases: the CrBorthorhombic crystal, the hexagonal crystalCr2B, and the tetragonal crystal Cr3B2. Chromiumboride parts produced by powder metallurgyhave a specific gravity of 6.20 to 7.31,with a Rockwell A hardness of 77 to 88. Theyhave good resistance to oxidation at high temperatures,are stable to strong acids, and havehigh heat-shock resistance up to 1316°C. Thetransverse rupture strength is from 552 to 931MPa. CrB is used for oil-well drilling. A sinteredmaterial, used for gas-turbine blades, contains85% CrB with 15% nickel binder. It hasa Rockwell A hardness of 87 and a transverserupture strength of 848 MPa.
Chromdiborid Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
Chromdiborid Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 73)Lieferanten
12007-16-8(Chromdiborid)Verwandte Suche:
- Crumbs homolog 2
- Chromium diboride , powder
- Chromium diboride (crb2)
- Einecs 234-499-3
- CHROMIUM BORIDE
- CHROMIUM BORIDE
- chromiumboride(crb2)
- CHROMIUM DIBORIDE
- CRB2
- CRB2 K
- Chromium diboride,(99.5% Cr)
- Chromiumdiboridemeshpowderavgmicronsorless
- CHROMIUM DIBORIDE, -325 MESH, 99+%
- ChromiumBoride,99%
- CRB2 GRADE B CHROMIUM DIBORIDE GRADE B - A PRODUCT OF HC STARCK
- CRB2 K CHROMIUM DIBORIDE GRADE K - A PRODUCT OF HC STARCK
- Chromium boride, 99% (metals basis)
- Chromium Boride, -325 Mesh
- Chromium boride 99,2% (excl. Oxygen content of 0.6% max.), <10 microns
- ANTI-CRUM2 (C-TERM) antibody produced in rabbit
- CHROMIUM DIBORIDECHROMIUM DIBORIDECHROMIUM DIBORIDECHROMIUM DIBORIDE
- boron,chromium
- ChroMiuM boride ISO 9001：2015 REACH
- Tungsten Sulfide (WS2) Sputtering Targets
- Chromium diboride , powder (CrB2)
- Chromium diboride , powder (CrB2) -325mesh
- 12007-16-8
- Borides
- Ceramics
- Metal and Ceramic Science
