CAS: 12069-94-2; Niobium Carbide

该化合物是一种以其特殊硬度和高熔点而闻名的耐火陶瓷化合物,在各种工业应用中具有价值,通常看起来像是灰色黑粉或固体,并展示了立方晶体结构.NbC的特点是高热和导电导性,适合用于电子部件和复合材料中的导电添加物.此外,它表现出很强的抗氧化和腐蚀性,增强了其在恶劣环境中的耐久性.氧化碳经常被用于生产切割工具,耐穿涂层和钢合金中的加固剂.它与其他碳化物形成固体溶液的能力在冶金方面进一步扩大了其适用性.然而,处理NbC需要谨慎,因为它作为尘被吸入时可能危害健康.总的来说,氨碳化物是先进制造和材料科学中的重要材料,因为它具有独特性.

英文名称Niobium Carbide
中文名称碳化铌
其它别名Niobium Carbide (Nbc)
CAS编号12069-94-2
MFCD编号:MFCD00016237
EINECS号:235-117-8
分子式:CH4Nb
分子量:104.92
产品CID: 276878
产品分类无机化工 → 无机盐 → 碳化物及碳酸盐

相似结构搜索
InChIKey: CLOIETWQBJYMFR-UHFFFAOYSA-N
InChI=1S/CH4.Nb/h1H4;…
计算化学: 氢键受体数0.0氢键供体数0.0可旋转键数0.0

物理性质

熔点3500 °C
沸点4300 °C
密度7.6 g/mL at 25 °C(文献)
PSA:0.0
LogP:0.0
溶解性Insoluble In H2O, Acid Solutions
敏感性常温常压下稳定避免的物料氧化物。不溶于冷热盐酸、硫酸、硝酸，溶于热的氢氟酸和硝酸的混合溶液。在1000～1100 °C下稳定，在1100 °C以上则迅速氧化成五氧化铌。碳化铌易熔于碳化钛、碳化锆、碳化钨等化合物中，并一起生成类质同晶固溶混合物。属于氯化钠型晶体结构，晶格常数4.471A·(1A·=0.1nm)，比刚玉还硬，微维氏硬度(负荷50g)是2400kg/mm2。熔点也很高，为3490°C［81,82］。
外观形态白色粉末
储存条件常温密闭，阴凉通风干燥环境
产品应用该化合物用作该化合物用作该化合物用作该化合物用作高温防护性防护剂.

MSDS等安全信息

GHS符号GHS02
警示词Warning
危险描述H228
防范说明P210-P240-P241-P280-P370+P378a
危险等级4.1
UN编号UN3178
危险品标志F+
包装等级III
安全声明H303May be harmful if swallowed+H313Skin contact may be harmful+H333Inhalation may be harmful to the body
WGK Germany3

合成工艺路线路线简述

五氯化铌置于mg,Al体系中,用 Neat (No Solvent) 用作溶剂,化学反应生成碳化铌
参考文献:Gmelin Handbuch Der Anorganischen Chemie,Gmelin Handbook: Nb: Mvol.B1,88,Page 188-190
标题:Gmelin Handbuch Der Anorganischen Chemie,Gmelin Handbook: Nb: Mvol.B1,88,Page 188-190

专利信息

专利号:US-12275713-B1
优先权日:2023-10-30
标题:Method for preparing 5-hydroxymethylfurfural
发明人：XU HAI; XU QIANG; YU SANXI; LI XINGLONG
权利人:HEFEI LEAF BIOTECH CO LTD
摘要:The application discloses a method for preparing 5-hydroxymethylfurfural and belongs to the technical field of synthesis of 5-hydroxymethylfurfural, mainly using biomass sugar as raw material and catalyzing the sugar to prepare 5-hydroxymethylfurfural in a tubular reactor filled with catalyst particles. In the application, the preparation of the humin-supported Sn catalyst is simple and has mild reaction conditions; the catalyst, as a high value-added product of humin, has good catalytic efficiency; the preparation of 5-hydroxymethylfurfural using the catalyst has the advantages of high yield, low cost and the like; the tubular reactor adopted can reduce backmixing, greatly shorten the reaction time and reduce the generation of humin and can also be equipped with inline monitoring equipment to monitor the preparation of HMF in a timely manner. Therefore, the application has the advantages of simple process, low energy consumption, high yield, cost saving, and the like.