无水磷酸氢二钠|7558-79-4|二盐基性磷酸钠;磷酸二钠;磷酸氢二钠,无水;磷酸氢二钠无水|艾科试剂

货号	品名	产品规格	包装	单价(RMB)	可用库存	备注
114607	无水磷酸氢二钠	AR	500g	75.00	>10	促销
114606	无水磷酸氢二钠	CP	500g	58.00	>10	促销
114605	无水磷酸氢二钠	GR	500g	98.00	>10	15021
114604	无水磷酸氢二钠	电泳级, ≥99%	500g	486.00	>10	15021
114603	无水磷酸氢二钠	分子生物学级，≥99.5% (T)	250g	536.00	>10	15021
114602	无水磷酸氢二钠	细胞或昆虫细胞培养, ≥99%	100g	190.00	>10	15021
114601	无水磷酸氢二钠	细胞或昆虫细胞培养, ≥99%	500g	386.00	>10	15021
114600	无水磷酸氢二钠	99.99%	25g	52.00	>10	15021
114599	无水磷酸氢二钠	99.99%	100g	106.00	>10	15021
114598	无水磷酸氢二钠	SP	25g	88.00	>10	15021
114597	无水磷酸氢二钠	PT	100g	108.00	>10	15021

性状

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

质量标准

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(SO₄)Sulfate,%　                ≤0.01      0.02
硝酸盐(NO₃)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