Product Name: Laboratory Porcelainware Crucibles with Tight Closing Lid Glazed Model NO.: C201-C203 Material: Porcelain Reactant State: Solid Model: C201 Article: Laboratory High Form Porcelain Crucible Capacity: 15ml-30ml Feature: High Temperature Resistance Sizes: 15-30ml Color: White Application: Laboratory, Teaching, Chemical Usage: Reaction Type: Crucibles Trademark: cordial Transport Package: Standard Export Package Origin: Jiangsu, China HS Code: 69091900 Product Description Laboratory High Form Porcelain Crucible With LidPorcelain Evaporating Dishes With Glazed Or Unglazed Made By Ceramic Alumina,Laboratory Porcelainwares FullSerials,The No.1 Brand In China With High Quality& Competitive Offers.Supplier For Bayer & Basf Etc.To Be Top Quality In China.Thematerialsusedwithhighpurityenableproductstoresistcorrosionandwithstandsharpchangeintemperature.Glazedutensilsworksatisfactorilyattemperaturesupto1050°C,andunglazedupto1380°C.Bothofthemmeetrequirementsaquiredbychemicalandphysicalanalysis.EachpieceofproductpassesstrictinspectinginaccordancewiththestandardofSY-3320-83issuedbythePetroleumIndustryMinistrybeforebeingbroughttobemarketed.ChemicalCompositionsSiO251%Al2O336.5%Fe2O30.15%CaO0.47%MgO1.68%K2O3.2%Na2O0.79%Others6.21%PhysicalParametersAcidresistance>99.98%Alkaliresisitance>97%TemperatureresistanceA.Forglazedtype:1050°CB.Forunglazedtype:1380°CC.ForCorundumcrucibles:1600°CD.ForCarbonsulphurhighfrequencycrucibles:1700°CWearresistance<0.03g/cm2Moh'shardness7gradeWaterabsorptionrate<0.5%Bulkdensity2.2-2.7g/cm3Compressivestrength>300MpaBreakingstrength>40MpaThermalstability1400°CtoambienttemperatureCat.No.Capacity(ml)RimDiam(mm)BottomDiam(mm)Height(mm)C-20115281840C-20220302043C-20330402450Thanks for your cooperation in advance and welcome to your early reply!Thanks for your cooperation in advance and welcome to your early reply!