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Tantalum carbide

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Tantalum carbide Basic information

Product Name:
Tantalum carbide
Synonyms:
  • Tantalum carbide pwdr.
  • Tantalum monocarbide
  • Tantalum carbide (metals basis)
  • TantaluM(IV) carb
  • Tantalum carbide, 99.5% trace metals basis
  • Tantalum carbide powder (TaC)
  • tantalumcarbide(tac)
  • TANTALUM CARBIDE
CAS:
12070-06-3
MF:
CTa
MW:
192.96
EINECS:
235-118-3
Product Categories:
  • metal borides and carbides
  • CarbidesChemical Synthesis
  • Catalysis and Inorganic Chemistry
  • Ceramics
  • Metal and Ceramic Science
  • Tantalum
  • Inorganics
Mol File:
12070-06-3.mol
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Tantalum carbide Chemical Properties

Melting point:
3880°C
Boiling point:
5500°C
Density 
13.9
solubility 
soluble in HF-HNO3 mixture
form 
Powder
color 
Gray to black
Resistivity
30–42.1 (ρ/μΩ.cm)
Water Solubility 
Soluble in hydrofluoric acid and nitric acid. Partially soluble in water.
Crystal Structure
Cubic, NaCl Structure
EPA Substance Registry System
Tantalum carbide (TaC) (12070-06-3)
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Safety Information

RIDADR 
UN3178
WGK Germany 
3
TSCA 
Yes
HazardClass 
4.1
PackingGroup 
III

MSDS

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Tantalum carbide Usage And Synthesis

Chemical Properties

Hard, heavy, refractory, crystalline solid. Hardness 1800 kg/sq mm, resistivity 30 μΩ?cm (room temperature). Extremely resistant to chemical action except at elevated temperature.

Physical properties

Golden brown crystals, soluble in HF-HNO mixture. Crucible 3 container for melting ZrO and similar oxides with high melting point. Corrosion resistant to molten metals such as Ta and Re. Readily corroded by liquid metals such as Nb, Mo, and Sn. Burning occurs in pure oxygen above 800°C. Severe oxidation in air above 1100–1400°C. Maximum operating temperature of 3760°C in helium

Uses

Cutting tools and dies, cemented carbide tools.

Uses

A mixture of tantalum carbide (TaC) and graphite is a very hard material and is used to form the cutting edge of machine tools.

Uses

Tantalum monocarbide, TaC, is a gold-colored powder produced industrially by direct reaction of carbon with either tantalum scrap or tantalum pentoxide at temperatures up to 1,900 °C (3,452 °F). It is added in small amounts (0.2–2 wt %) in the form of TaC or mixed carbides like TaNbC and WTiTaC to tungsten carbide–cobalt-based cutting tools in order to reduce grain growth. Adding 2–15 wt % TaC to cemented carbides considerably increases their thermal shock resistance and their resistance to cratering and oxidation. The tantalum–carbon phase diagram shows the existence of several subcarbides.

Flammability and Explosibility

Non flammable

Industrial uses

Tantalum carbide and tungsten carbide combinedin a matrix of nickel, cobalt, and/or chromiumprovide an RHM formulation especiallysuited for a combination of corrosion and wearresistance. Some grades are almost as corrosionresistant as platinum. Nozzles, orifice plates,and valve components are typical uses.

Tantalum carbide Preparation Products And Raw materials

Raw materials

Tantalum carbideSupplier

Shaanxi Henghan New Materials Co., Ltd Gold
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151-19109892 15619311539
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J & K SCIENTIFIC LTD.
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010-82848833 400-666-7788
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Meryer (Shanghai) Chemical Technology Co., Ltd.
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4006608290; 18621169109
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market03@meryer.com
Alfa Aesar
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400-6106006
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saleschina@alfa-asia.com
BeiJing Hwrk Chemicals Limted
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0757-86329057 18501085097
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sales3.gd@hwrkchemical.com