12381 草酸 AR 500g 19
12382 草酸 GR 500g 25
12383 草酸 CP 500g 18
12384 草酸 SP 25g 66
12385 草酸 4N 25g 66
12386 草酸 ACS 500g 35
12387 草酸 ≥99.998% (metals basis) 25g 390
12388 草酸 ≥99.998% (metals basis) 5g 102
无色单斜片状或棱柱体结晶或白色粉末。密度：1.653 ,熔点：101-102℃ ,沸点：86.9℃ 折光率n20/D：1.45560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乙醚、5.5ml甘油，不溶于苯、氯仿和石油醚。0.1mol/L溶液的pH值为1.3。低毒，半数致死量（兔，经皮）2000mg/kg。
GB/T 9855-88 项目Item 优级纯 分析纯 化学纯 (GR) (AR) (CP) 含量(C 2 H 2 O 4 · 2H 2 O)Assay,% ≥99.8 99.5 99.5 澄清度试验Clarity 合格 合格 合格 水不溶物Insoluble matter in water,% ≤0.002 0.005 0.01 灼烧残渣（以硫酸盐计）Ignition residue,% ≤0.01 0.02 0.05 氯化钠(Cl)Chloride,% ≤0.0005 0.002 0.005 硫酸盐(SO 4 )Sulfate,% ≤0.001 0.002 0.005 总氮量(N)Total nitrogen,% ≤0.001 0.002 0.005 钙(Ca)Calcium,% ≤0.001 0.003 0.005 铁(Fe)Iron,% ≤0.0002 0.0005 0.002 重金属(以Pb计)Heavy metals,% ≤0.0002 0.0004 0.001 易碳化物质Readily carboniz-able substance 合格 合格 合格 ACS级 项目名称Item ACS Grade 含量(H 2 C 2 O 4 ·2H 2 O)Assay 99.5-102.5% 易炭化物质Substances darkened by hot sulfuric acid Passes test 水不溶物Insoluble matter ≤0.005% 灼烧残渣Residue after ignition ≤0.01% 氯化物(Cl)Chloride(Cl) ≤0.002% 硫酸盐(SO 4 )Sulfate ≤0.005% 钙(Ca)Calcium(Ca) ≤0.001% 氮化合物(以N计)Nitrogen compounds(as N) ≤0.001% 重金属(以Pb计)Heavy metals(as Pb) ≤5ppm 铁(Fe)Iron(Fe) ≤2ppm 99.998% metals basis: 外观Appearance White Powder X-射线衍射分析X-Ray Diffraction Conforms to Structure 红外光谱鉴别Infrared spectrometry Conforms to Structure 纯度Purity ≥99.998% Based on Trace Metals Impurities of ICP 痕量金属分析total metallic impurities ≤20ppm by ICP Atomic emission 99.99% metals basis: 外观Appearance White Powder X-射线衍射分析X-Ray Diffraction Conforms to Structure 红外光谱鉴别Infrared spectrometry Conforms to Structure 纯度Purity ≥99.99% Based on Trace Metals Impurities of ICP 痕量金属分析total metallic impurities ≤100ppm by ICP Atomic emission ≥99.9999% (metals basis)： 外观Appearance 白色粉末或结晶 纯度Purity ≥99.9999% Based On Trace Metals Analysis 总氮total nitrogen ≤10 ppm 熔点mp 104-106 °C anion traces by 氯chloride (Cl-): ≤5000 ppb 磷酸根phosphate (PO43-): ≤500 ppb 硫酸根sulfate (SO42-): ≤2000 ppb cation traces Ag: ≤0.01 ppm Al: ≤0.02 ppm As: ≤0.01 ppm Au: ≤0.001 ppm Ba: ≤0.1 ppm Be: ≤0.001 ppm Bi: ≤0.001 ppm Ca: ≤0.1 ppm Cd: ≤0.05 ppm Ce: ≤0.005 ppm Co: ≤0.005 ppm Cr: ≤0.01 ppm Cs: ≤0.01 ppm Cu: ≤0.005 ppm Dy: ≤0.005 ppm Er: ≤0.005 ppm Eu: ≤0.005 ppm Fe: ≤0.5 ppm Ga: ≤0.001 ppm Gd: ≤0.005 ppm Ge: ≤0.005 ppm Hf: ≤0.005 ppm Hg: ≤0.005 ppm Ho: ≤0.005 ppm In: ≤0.001 ppm Ir: ≤0.005 ppm K: ≤0.2 ppm La: ≤0.005 ppm Li: ≤0.005 ppm Lu: ≤0.005 ppm Mg: ≤0.02 ppm Mn: ≤0.005 ppm Mo: ≤0.005 ppm Na: ≤0.1 ppm Nb: ≤0.005 ppm Nd: ≤0.005 ppm Ni: ≤0.01 ppm Os: ≤0.01 ppm Pb: ≤0.01 ppm Pd: ≤0.01 ppm Pr: ≤0.005 ppm Pt: ≤0.05 ppm Rb: ≤0.01 ppm Re: ≤0.005 ppm Rh: ≤0.005 ppm Ru: ≤0.005 ppm Sb: ≤0.001 ppm Sc: ≤0.05 ppm Se: ≤0.01 ppm Sm: ≤0.005 ppm Sn: ≤0.005 ppm Sr: ≤0.1 ppm Ta: ≤0.01 ppm Tb: ≤0.005 ppm Te: ≤0.005 ppm Th: ≤0.005 ppm Ti: ≤0.02 ppm Tl: ≤0.001 ppm Tm: ≤0.005 ppm U: ≤0.001 ppm V: ≤0.01 ppm W: ≤0.005 ppm Y: ≤0.005 ppm Yb: ≤0.005 ppm Zn: ≤0.02 ppm Zr: ≤0.1 ppm
危险品标志 Xn,C 危险类别码 21/22 WGK Germany 1 RTECS号 RO2450000 HazardClass 8 PackingGroup III 安全说明 24/25
在酸性镀锡中作络合剂，它与四氯化锡组成络合盐溶解在镀锡溶液中。一般加入量为24～25 g/L。还可用于铜件抛光。铝的草酸阳极氧化和硬质阳极氧化溶液中，以及硫酸盐镀铁和刷镀络等电镀液中。