性状 白色颗粒状,条状或小片状固体。易吸收空气中的水分和二氧化碳。1g溶于0.9ml冷水、0.3ml沸水、7.2ml无水乙醇、4.2ml甲醇,溶于甘油。溶于水、乙醇时或溶液与混和时产生剧热。溶液呈强碱性。有腐蚀性。半数致死量 (小鼠,腹腔)40mg/kg。 密度:2.13 熔点:318℃ 沸点:1390℃ 折光率:1.473-1.475 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/T 629-199 项目Item 优级纯 分析纯 化学纯 (GR) (AR) (CP) 含量(NaOH)Assay,% ≥ 97.0 96.0 95.0 碳酸盐(以NaCO3计) Carbonate,% ≤ 1.0 1.5 3.0 澄清度试验Clarity 合格 合格 合格 氯化物(Cl)Chloride,% ≤ 0.002 0.005 0.01 硫酸盐(SO4)Sulfate,% ≤ 0.002 0.005 0.02 总氮量(N)Total nitrogen,% ≤ 0.0005 0.001 0.002 磷酸盐(PO4)Phosphate,% ≤ 0.0005 0.001 0.002 硅酸盐(SiO3)Silicate,% ≤ 0.005 0.01 0.05 镁(Mg)Magnesium,% ≤ 0.0005 -- -- 铝(Al)Aluminum,% ≤ 0.001 0.002 0.005 钾(K)Potassium,% ≤ 0.02 0.05 -- 钙(Ca)Calcium,% ≤ 0.002 0.01 0.05 铁(Fe)Iron,% ≤ 0.005 0.001 0.002 镍(Ni)Nickel,% ≤ 0.001 -- -- 锌(Zn)Zinc,% ≤ 0.001 -- -- 砷(As)Arsenic,% ≤ 0.001 -- -- 重金属(以Pb计)Heavy metals,% ≤ 0.001 0.003 0.003
ACS级 项目名称 ACS Grade 含量(NaOH)Assay ≥97% 碳酸钠Sodium carbonate ≤1.0% 硫酸盐(SO4)Sulfate ≤0.003% 氯化物(Cl)Chloride ≤0.005% 氮化合物(以N计)Nitrogen compounds ≤0.001% 磷酸盐(PO4)Phosphate ≤0.001% 重金属(以Pb计)Heavy metals ≤0.002% 铁(Fe)Iron(Fe) ≤0.001% 镍(Ni)Nickel ≤0.001% 汞(Hg)Mercurous ≤0.1ppm 钙(Ca)Calcium ≤0.005% 镁(Mg)Magnesium ≤0.002% 钾(K)Potassium ≤0.02%
品级Grade 药用级 (Ph. Eur., BP, NF, E524, 98-100.5%, pellets ) 含量assay 98-100.5% 总氮total nitrogen (N) ≤0.0005% 重金属heavy metals (as Pb) ≤0.002% 碳酸钠Na2CO3 ≤0.5% 氯离子chloride (Cl-): ≤20 ppm 磷酸根phosphate (PO43-): ≤10 ppm 硅酸根silicate (as SiO2): ≤100 ppm 硫酸根sulfate (SO42-): ≤30 ppm 氯Al: ≤10 ppm 砷As: ≤2 ppm 钙Ca: ≤10 ppm 铁Fe: ≤10 ppm 汞Hg: ≤1 ppm 钾K: ≤1000 ppm 铅Pb: ≤0.5 ppm
品级Grade 电子级, 99.99% metals basis (semiconductor grade, 99.99% metals basis) 外观Appearance White Pellets X-射线衍射分析X-Ray Diffraction Conforms to Structure 纯度Purity ≥99.99% Based on Trace Metals Analysis By ICP and AA Combined 氢氧化钠NaOH(Titration by HCL) 95.0 % 碳酸钠Na2CO3 1.0 % 痕量金属分析total metallic impurities ≤200ppm by ICP Atomic emission
≥98%, pellets (anhydrous):
外观Appearance White Pellets 水溶性Solubility Clear Colorless,100 mg/ml, H2O 纯度Purity(Titration by HCl) ≥ 98 % 碳酸钠杂质Impurity(As Na2CO3) ≤1.0 %
品级Grade 荧光专用 (for luminescence, ≥98.0% (T), pellets) 外观Appearance pellets 含量assay ≥98.0% (T) 不溶物insoluble matter, passes filter test 总氮total nitrogen (N) ≤0.0003% 二氧化硅silicon dioxide (SiO2) ≤0.0005% 碳酸钠sodium carbonate (Na2CO3) ≤1.0% 水溶性solubility H2O: soluble1 M at 20 °C, clear, colorless anion traces chloride (Cl-): ≤10 ppm phosphate (PO43-): ≤5 ppm sulfate (SO42-): ≤5 ppm cation traces Ag: ≤5 ppm Al: ≤5 ppm As: ≤0.1 ppm Ba: ≤5 ppm Bi: ≤5 ppm Ca: ≤10 ppm Cd: ≤5 ppm Co: ≤5 ppm Cr: ≤5 ppm Cu: ≤5 ppm Fe: ≤5 ppm Hg: ≤0.1 ppm K: ≤200 ppm Li: ≤5 ppm Mg: ≤5 ppm Mn: ≤5 ppm Mo: ≤5 ppm Ni: ≤5 ppm Pb: ≤5 ppm Sr: ≤5 ppm Zn: ≤5 ppm λ 1 M in H2O UV absorption λ: 260 nm A: ≤0.015 UV absorption λ: 280 nm A: ≤0.01 suitability in accordance for luminescence
品级Grade ACS级,, K ≤0.02%, ≥98.0% (T), 片状 (ACS, K ≤0.02%, ≥98.0% (T), pellets) 外观Appearance pellets 含量assay ≥98.0% (T) 总氮total nitrogen (N) ≤0.0003% 二氧化硅silicon dioxide (SiO2) ≤0.0005% 碳酸钠sodium carbonate (Na2CO3) ≤1.0% 水溶性solubility H2O: soluble1 M at 20 °C, clear, colorless anion traces chloride (Cl-): ≤10 ppm phosphate (PO43-): ≤5 ppm sulfate (SO42-): ≤5 ppm cation traces Ag: ≤5 ppm Al: ≤5 ppm As: ≤0.1 ppm Ba: ≤5 ppm Bi: ≤5 ppm Ca: ≤10 ppm Cd: ≤5 ppm Co: ≤5 ppm Cr: ≤5 ppm Cu: ≤5 ppm Fe: ≤5 ppm Hg: ≤0.1 ppm K: ≤200 ppm Li: ≤5 ppm Mg: ≤5 ppm Mn: ≤5 ppm Mo: ≤5 ppm Ni: ≤5 ppm Pb: ≤5 ppm Sr: ≤5 ppm Zn: ≤5 ppm 贮存 密封干燥保存。 用途 广泛应用的基本分析试剂。配制分析用标准碱液。少量二氧化碳和水分的吸收剂。酸的中和。钠盐制造。 联合国编号 1823固体;1824溶液 Risk: R35- Safety : S26- S37/39- S45- Hazard : C - |