草酸规格:99.5%产地:英国/美国包装:50kg/袋价格:4800元/吨草酸OxalicaciddihydrateCas号:6153-56-6分子式C2H2O4•2H2O；HO2CCO2H•2H2O分子量126.07别名乙二酸,蓚酸Ethanedioicacid性状无色单斜片状或棱柱体结晶或白色粉末。在温热、干燥空气中风化，可溶于水及乙醇。无气味。150-160℃升华。在高热干燥空气中能风化。1g溶于7ml水、2ml沸水、2.5ml乙醇、1.8ml沸乙醇、100ml醚、5.5ml油，不溶于苯、氯仿和石油醚。0.1mol/L溶液的pH值为1.3。密度：1.653熔点：101-102℃沸点：86.9℃折光率n20/D：1.45560备注:以上描述，仅作参考，并不表示您收到的产品，与此项描述完全相符，产品的出厂标准，请参见质量标准。质量标准GB/T9855-88项目Item优级纯分析纯化学纯(GR)(AR)(CP)含量(C2H2O4•2H2O)Assay,%≥99.899.599.5澄清度试验Clarity合格合格合格水不溶物Insolublematterinwater,%≤0.0020.0050.01灼烧残渣（以硫酸盐计）Ignitionresidue,%≤0.010.020.05氯化钠(Cl)Chloride,%≤0.00050.0020.005硫酸盐(SO4)Sulfate,%≤0.0010.0020.005总氮量(N)Totalnitrogen,%≤0.0010.0020.005钙(Ca)Calcium,%≤0.0010.0030.005铁(Fe)Iron,%≤0.00020.00050.002重金属(以Pb计)Heavymetals,%≤0.00020.00040.001易碳化物质Readilycarboniz-ablesubstance合格合格合格ACS级项目名称ItemACSGrade含量(H2C2O4•2H2O)Assay99.5-102.5%易炭化物质SubstancesdarkenedbyhotsulfuricacidPassestest水不溶物Insolublematter≤0.005%灼烧残渣Residueafterignition≤0.01%氯化物(Cl)Chloride(Cl)≤0.002%硫酸盐(SO4)Sulfate≤0.005%钙(Ca)Calcium(Ca)≤0.001%氮化合物(以N计)Nitrogencompounds(asN)≤0.001%重金属(以Pb计)Heavymetals(asPb)≤5ppm铁(Fe)Iron(Fe)≤2ppm99.998%metalsbasis:外观AppearanceWhitePowderX-射线衍射分析X-RayDiffractionConformstoStructure红外光谱鉴别InfraredspectrometryConformstoStructure纯度Purity≥99.998%BasedonTraceMetalsImpuritiesofICP痕量金属分析totalmetallicimpurities≤20ppmbyICPAtomicemission99.99%metalsbasis:外观AppearanceWhitePowderX-射线衍射分析X-RayDiffractionConformstoStructure红外光谱鉴别InfraredspectrometryConformstoStructure纯度Purity≥99.99%BasedonTraceMetalsImpuritiesofICP痕量金属分析totalmetallicimpurities≤100ppmbyICPAtomicemission≥99.9999%(metalsbasis)：外观Appearance白色粉末或结晶纯度Purity≥99.9999%BasedOnTraceMetalsAnalysis总氮totalnitrogen≤10ppm熔点mp104-106°Caniontracesby氯chloride(Cl-):≤5000ppb磷酸根phosphate(PO43-):≤500ppb硫酸根sulfate(SO42-):≤2000ppbcationtracesAg:≤0.01ppmAl:≤0.02ppmAs:≤0.01ppmAu:≤0.001ppmBa:≤0.1ppmBe:≤0.001ppmBi:≤0.001ppmCa:≤0.1ppmCd:≤0.05ppmCe:≤0.005ppmCo:≤0.005ppmCr:≤0.01ppmCs:≤0.01ppmCu:≤0.005ppmDy:≤0.005ppmEr:≤0.005ppmEu:≤0.005ppmFe:≤0.5ppmGa:≤0.001ppmGd:≤0.005ppmGe:≤0.005ppmHf:≤0.005ppmHg:≤0.005ppmHo:≤0.005ppmIn:≤0.001ppmIr:≤0.005ppmK:≤0.2ppmLa:≤0.005ppmLi:≤0.005ppmLu:≤0.005ppmMg:≤0.02ppmMn:≤0.005ppmMo:≤0.005ppmNa:≤0.1ppmNb:≤0.005ppmNd:≤0.005ppmNi:≤0.01ppmOs:≤0.01ppmPb:≤0.01ppmPd:≤0.01ppmPr:≤0.005ppmPt:≤0.05ppmRb:≤0.01ppmRe:≤0.005ppmRh:≤0.005ppmRu:≤0.005ppmSb:≤0.001ppmSc:≤0.05ppmSe:≤0.01ppmSm:≤0.005ppmSn:≤0.005ppmSr:≤0.1ppmTa:≤0.01ppmTb:≤0.005ppmTe:≤0.005ppmTh:≤0.005ppmTi:≤0.02ppmTl:≤0.001ppmTm:≤0.005ppmU:≤0.001ppmV:≤0.01ppmW:≤0.005ppmY:≤0.005ppmYb:≤0.005ppmZn:≤0.02ppmZr:≤0.1ppm贮存密封保存用途络合剂。沉淀剂。还原剂。掩蔽络合物的形成剂，校准锰酸钾及硫酸铈溶液的标准溶液，显微微晶分析检验钠和其他元素。分析中用以检定和测定铍、钙、铬、金、锰、锶、钍等金属离子。沉淀钙、镁、钍和稀土元素。漂白剂。助染剂。联合国编号3261Risk：R21/22-Safety:S24/25-Hazard:Xn-)