碳化钽 Tantalum(IV)carbide 250g

CAS号：12070-06-3

品名：碳化钽Tantalum(IV)carbide

中文别名：碳化钽

英文别名：Tantalumcarbide;

分子式：CTa

分子量：192.959

精确质量：192.948

Psa：0.0

EINECS号：235-118-3

MDL号：MFCD00011255

PubChem号：24856954

外观与性状：黑色至灰色粉末,无气味的

密度：

沸点：5500ºC

熔点：3880ºC

稳定性：Stable at normal temperatures and pressures.

储存条件：Keep container tightly closed. Store in a cool, dry, well-ventilated area. Wash thoroughly after use.

海关编码：2849909000

危险品运输编码：UN3178

危险类别：4.1

包装等级：III

简介：TantalumcarbidesformafamilyofbinarychemicalcompoundsoftantalumandcarbonwiththeempiricalformulaTaCx,wherexusuallyvariesbetween0.4and1.Theyareextremelyhard,brittle,refractoryceramicmaterialswithmetallicelectricalconductivity.Theyappearasbrown-graypowderswhichareusuallyprocessedbysintering.Beingimportantcermetmaterials,tantalumcarbidesarecommerciallyusedintoolbitsforcuttingapplicationsandaresometimesaddedtotungstencarbidealloys.Themeltingpointsoftantalumcarbidespeakatabout3880°Cdependingonthepurityandmeasurementconditions;thisvalueisamongthehighestforbinarycompounds.Onlytantalumhafniumcarbidemayhaveaslightlyhighermeltingpointofabout3942°C,whereasthemeltingpointofhafniumcarbideiscomparabletothatofTaC.