32266 磷酸氢二钠 AR 500g 75
32267 磷酸氢二钠 CP 500g 55
32268 磷酸氢二钠 GR 500g 95
32269 磷酸氢二钠 电泳级, ≥99% 500g 480
32270 磷酸氢二钠 分子生物学级，≥99.5% (T) 250g 530
32271 磷酸氢二钠 细胞或昆虫细胞培养, ≥99% 100g 185
32272 磷酸氢二钠 细胞或昆虫细胞培养, ≥99% 500g 380
32273 磷酸氢二钠 99.99% 25g 85
32274 磷酸氢二钠 99.99% 100g 290
32275 磷酸氢二钠 SP 25g 82
32276 磷酸氢二钠 PT 100g 102
白色粉末、片状或粒状物。 易溶于水，其水溶液呈碱性；不溶于醇。 熔点 243-245 °C 密度 1.064 g/mL at 20 °C 溶解度 H2O: 0.5 M at 20 °C, clear, colorless 水溶解性 > =10 g/100 mL at 20 oC
Q/(HG)SJ 497-92 99.99% 外观Appearance White Powder, Crystals, Granules and/or Lumps X-射线衍射分析X-Ray Diffraction Conforms to Structure 纯度Purity ≥99.99% Based on Trace Metals Impurities ICP Major Analysis Confirms Na and P Components 总痕量金属杂质total metallic impurities ≤200ppm by ICP Atomic emission 项目Item 分析纯　 化学纯 (AR) (CP) 纯度Purityby HCL titration ≥99.0% ≥98.0% 水溶液反应Water solution reaction 合格 合格 干燥失重Drying loss,% ≤0.2 0.2 水不溶物Insiluble matter in water,% ≤0.01 0.02 氯化物(Cl)Chloride,% ≤0.001 0.002 硫酸盐(SO 4 )Sulfate,%　 ≤0.01 0.02 硝酸盐(NO 3 )Nitrate,% ≤0.0003 0.001 铁(Fe)Iron,% ≤0.002 0.004 砷(As)Arsenic,% ≤0.002 0.004 重金属(以Pb计)Heavy metals,% ≤0.001 0.002 品级Grade 细胞或昆虫细胞培养, ≥99% (for cell culture, for insect cell culture, ≥99%) 外观appearance white powder 水溶性solubility clear colorless solution at 100mg/ml in water 干燥失重loss on drying ≤1.0% 纯化purity by HCL titration ≤99.0% 细胞培养cell culture test pass 昆虫细胞培养insect cell test pass 品级Grade 电泳级, ≥99% (for electrophoresis, ≥99%) 外观Appearance White to Off-White Powder 纯度Purity by HCL titration ≥99.0% 不溶物Insoluble matter ≤ 0.01 % 氯Chloride Content ≤ 0.002 % 硫酸根Sulfate ≤ 0.005 % 重金属Heavy metals ( as lead) ≤ 0.001 % 铁Iron (Fe) ≤ 0.002 % pH 8.7 - 9.3 5% solution at 25 deg C 水溶性Solubility Colorless，Clear，10 g plus 100 mL H2O 电泳试验Test for use in Weber and Osborn System of electrophoresis Pass 品级Grade 分子生物学级，≥99.5% (T) (for molecular biology，≥99.5% (T) ） DNA酶DNases, none detected RND酶RNases, none detected 不溶物insoluble matter, passes filter test 磷酸酶phosphatases, none detected 蛋白酶proteases, none detected 总氮total nitrogen (N) ≤0.001% 干燥损失loss on drying, 110 °C ≤0.1% pH 8.8-9.4 (25 °C, 0.5 M in H2O) pKa (25 °C) (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid) 水溶性solubility H2O: soluble0.5 M at 20 °C, clear, colorless 氯chloride (Cl-): ≤10 ppm 硫酸根sulfate (SO42-): ≤50 ppm Al: ≤5 ppm As: ≤0.2 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 K: ≤50 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 0.5 M in H2O UV absorption λ: 260 nm A: ≤0.025 λ: 280 nm A: ≤0.020
危险品标志 Xi WGK Germany 3 RTECS号 WC4500000 F 3 危险类别码 36/37/38 安全说明 26-36-24/25
用途 用作工业水质处理剂、印染洗涤剂、品质改良剂、抗生素培养剂、生化处理剂等 用途 用作织物、木材、纸张的阻燃剂，丝的增重剂。是制造活性染料的助剂。在焊接和铜焊中代替硼砂使用。