CAS:12070-06-3
12070-06-3
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.
钽
