磷酸氢二钾,无水,无水磷酸氢二钾无水磷酸氢钾磷酸二鉀磷酸氢钾,7758-11-4,化夏试剂

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磷酸氢二钾,无水 [7758-11-4]
英文名：Potassium phosphate dibasic anhydrous
别名：无水磷酸氢二钾无水磷酸氢钾磷酸二鉀磷酸氢钾
CAS号：7758-11-4 分子式：HK2O4P 分子量：174.18

P63039-500g 磷酸氢二钾,无水 [7758-11-4] 无水, 99.9% metals basis 500g 571.00 促销价:416.83
P63038-100g 磷酸氢二钾,无水 [7758-11-4] 无水, 99.9% metals basis 100g 221.00 促销价:161.33
P63031-100g 磷酸氢二钾,无水 [7758-11-4] 无水, 99.99% metals basis 500g 714.00 促销价:521.22
P63032-250g 磷酸氢二钾,无水 [7758-11-4] 无水, 99.99% metals basis 2.5kg 2335.00 促销价:1704.55
P63034-500g 磷酸氢二钾,无水 [7758-11-4] 无水, AR,98% 500g 100.00 促销价:65.00
P63033-100g 磷酸氢二钾,无水 [7758-11-4] 无水, AR,98% 100g 58.00 促销价:37.70
P63034-1kg 磷酸氢二钾,无水 [7758-11-4] 无水, AR,98% 1kg 200.00 促销价:140.00
P63036-100g 磷酸氢二钾,无水 [7758-11-4] 无水, for HPLC,≥99.0%(T) 100g 600.00 促销价:438.00
P63033-25g 磷酸氢二钾,无水 [7758-11-4] 无水, for HPLC,≥99.0%(T) 25g 257.00 促销价:187.61

订货编号	商品名称	规格	包装	单价	促销价	会员价	数量
P63039-500g	磷酸氢二钾,无水 [7758-11-4]	无水, 99.9% metals basis	500g	571.00	416.83	登录可见	P63039-500g 磷酸氢二钾,无水 [7758-11-4] 无水, 99.9% metals basis 500g 571.00 促销价:416.83
P63038-100g	磷酸氢二钾,无水 [7758-11-4]	无水, 99.9% metals basis	100g	221.00	161.33	登录可见	P63038-100g 磷酸氢二钾,无水 [7758-11-4] 无水, 99.9% metals basis 100g 221.00 促销价:161.33
P63031-100g	磷酸氢二钾,无水 [7758-11-4]	无水, 99.99% metals basis	500g	714.00	521.22	登录可见	P63031-100g 磷酸氢二钾,无水 [7758-11-4] 无水, 99.99% metals basis 500g 714.00 促销价:521.22
P63032-250g	磷酸氢二钾,无水 [7758-11-4]	无水, 99.99% metals basis	2.5kg	2335.00	1704.55	登录可见	P63032-250g 磷酸氢二钾,无水 [7758-11-4] 无水, 99.99% metals basis 2.5kg 2335.00 促销价:1704.55
P63034-500g	磷酸氢二钾,无水 [7758-11-4]	无水, AR,98%	500g	100.00	65.00	登录可见	P63034-500g 磷酸氢二钾,无水 [7758-11-4] 无水, AR,98% 500g 100.00 促销价:65.00
P63033-100g	磷酸氢二钾,无水 [7758-11-4]	无水, AR,98%	100g	58.00	37.70	登录可见	P63033-100g 磷酸氢二钾,无水 [7758-11-4] 无水, AR,98% 100g 58.00 促销价:37.70
P63034-1kg	磷酸氢二钾,无水 [7758-11-4]	无水, AR,98%	1kg	200.00	140.00	登录可见	P63034-1kg 磷酸氢二钾,无水 [7758-11-4] 无水, AR,98% 1kg 200.00 促销价:140.00
P63036-100g	磷酸氢二钾,无水 [7758-11-4]	无水, for HPLC,≥99.0%(T)	100g	600.00	438.00	登录可见	P63036-100g 磷酸氢二钾,无水 [7758-11-4] 无水, for HPLC,≥99.0%(T) 100g 600.00 促销价:438.00
P63033-25g	磷酸氢二钾,无水 [7758-11-4]	无水, for HPLC,≥99.0%(T)	25g	257.00	187.61	登录可见	P63033-25g 磷酸氢二钾,无水 [7758-11-4] 无水, for HPLC,≥99.0%(T) 25g 257.00 促销价:187.61

化学性质

白色结晶或无定形粉末。易溶于水，水溶液呈微碱性。微溶于醇。熔点 340 °C 密度 2,44 g/cm3 储存条件 Store at RT. 溶解度 H2O: 1 M at 20 °C, clear, colorless 水溶解性 1600 g/L (20 ºC)

质量标准

项目                                             分析纯
                                                         AR
含量                                                ≥99.0%
PH(50g/L,25℃)                                 8.9-9.4
澄清度试验                                      合格
水不溶物                                       ≤0.02%
氯化物(Cl)                                     ≤0.004%
硫酸盐(SO₄)                                   ≤0.03%
硝酸盐(NO₃)                                   ≤0.002%
钠(Na)                                         ≤0.05%
镁(Mg)                                         ≤0.002%
铁(Fe)                                         ≤0.003%
砷(As)                                         ≤0.0005%
重金属(以Pb计)                                 ≤0.0052%


ACS级
项目名称　                                     ACS Grade
含量(K₂HPO₄)Assay                              ≥98.0%
水不溶物Insoluble matter                       ≤0.01%
干燥失重Loss on drying                         ≤1.0%
氯化物(Cl)Chloride                             ≤0.003%
含氮化合物(以N计)Nitrogen compounds(as N)      ≤0.001%
硫酸盐(SO₄)Sulfate                             ≤0.005%
重金属(以Pb计)Heavy metals                     ≤5ppm
铁(Fe)Iron                                     ≤0.001%
钠(Na)Sodium                                   ≤0.05%

品级Grade                               用于分子生物学
                               (for molecular biology, ≥99.0% (T))
外观Appearance                          白色粉末或结晶
纯度Purity                              99.0 - 101.0 % （Titration by HCL）
Aluminum (Al)                           ≤5.0 ppm
Bismuth (Bi)                            ≤5.0 ppm
Barium (Ba)                             ≤5.0 ppm
Cadmium (Cd)                            ≤5.0 ppm
Calcium (Ca)                            ≤10.0 ppm
Cobalt (Co)                             ≤5.0 ppm
Chromium (Cr)                           ≤5.0 ppm
Copper (Cu)                             ≤5.0 ppm
Iron (Fe)                               ≤5.0 ppm
Lithium (Li)                            ≤5.0 ppm
Magnesium (Mg)                          ≤5.0 ppm
Manganese (Mn)                          ≤5.0 ppm
Molybdenum (Mo)                         ≤5.0 ppm
Sodium (Na)                             ≤5000.0 ppm
Nickel (Ni)                             ≤5.0 ppm
Lead (Pb)                               ≤5.0 ppm
Strontium (Sr)                          ≤5.0 ppm
Zinc (Zn)                               ≤5.0 ppm
Arsenic (As)                            ≤0.1 ppm
Chloride (CL)                           ≤50.0 ppm
Sulfate                                 ≤50.0 ppm
DNAse, RNAse, Protease, Phosphatase     None Detected
灼烧残渣Residue on ignition             None Detected
pH                                      8.7 - 9.3
                                        C=1M, H2O at 25 °C
λ 1 M in H2O
UV absorption
  λ: 260 nm A:                          ≤0.20
  λ: 280 nm A:                          ≤0.15
水溶解试验solubility in water          Clear Colorless ，5.225g/30ml (1M), H2O

品级Grade                               色谱纯
                                      (grade for HPLC )
外观Appearance                          白色粉末或结晶
纯度Purity                              ≥99.0% (T)
pH                                      8.7-9.3 (20 °C, 10% in H2O)
水溶行solubility H2O:                   soluble0.1 g/mL at 25 °C, clear, colorless
λ 10 % in H2O
UV absorption
  λ: 230 nm A:                          ≤0.1
  λ: 240 nm A:                          ≤0.09
  λ: 250 nm A:                          ≤0.08
  λ: 310 nm A:                          ≤0.03
  λ: 500 nm A:                          ≤0.02
RP gradient test                        Pass
filter test                             Pass

99.99% metals basis:

外观Appearance                          White Powder and/or Chunks
X-射线衍射分析X-Ray Diffraction         Conforms to Structure
纯度Purity                              ≥99.99% Based on Trace Metals Impurities
滴定纯度Purity（Titration by HCL）      97.5- 102.5 %
ICP Major Analysis                      Confirms Potassium and Phosphorus Components
痕量金属分析total metallic impurities   ≤200ppm by ICP Atomic emission