石墨坩埚是一种十分重要的化学仪器，尤其是在冶金行业，它是承载冶炼金属的重要容器。石墨坩埚型号、类型都有很多种，相应的生产所需的原材料也有很多种。

　　对不同的承载物和原材料，石墨坩埚可以分为铁坩埚、铸铁坩埚、石英坩埚、瓷坩埚、刚玉坩埚、碳化硅坩埚等多种。在选择坩埚时要根据要承载的物质严格选取，不然会发生腐蚀的现象。比如瓷坩埚用于氢氧化钠、碳酸钠等碱性物质，石英坩埚不能与氢氟酸接触，镍坩埚不能用于硫酸氢钾等含硫的碱性物质的熔化。

　　Graphite crucible is a kind of very important chemical instrument, especially inmetallurgy occupation, it is an important container smelting metal bearing. Graphitecrucible type, type has many kinds, corresponding to the production of raw materials needed are a lot.

　　On the bearing material and raw materials are not the same, graphite crucible can be divided into iron, cast iron crucible crucible, quartz crucible, a porcelain crucible, silicon carbide, corundum crucible crucible etc.. To strict selection according to the bearingmaterial in the selection of crucible, otherwise it will attack the corrosion appearance.For example, a porcelain crucible for sodium hydroxide, sodium carbonate and otheralkaline substances, quartz crucible and hydrofluoric acid can not touch, can not be used for melting Nickel Crucible alkaline substances and other sulfur of potassium bisulfate.

　　外环耐火器材厂专业生产各种型号的石墨坩埚，欢迎您来选购。

　　The outer ring fire equipment factory specializing in the production of various types ofgraphite crucible, expect you to buy.

　　扩展阅读：碳化硅石墨坩埚的优良特性