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Potassium phosphate dibasic anhydrous

Cas:
7758-11-4
MDL:
--MFCD00011383
Molecular Formula:
K2HPO4
Molecular Weight:
174.18
Alias:
Potassium phosphate dibasic Dipotassium hydrogen phosphate Potassium phosphate
Product order:
Name Specifications Packing Price Delivery
Potassium phosphate dibasic anhydrous AR 500g RMB 80.3 Consulting service
Potassium phosphate dibasic anhydrous CP 500g RMB 71.5 Consulting service
Potassium phosphate dibasic anhydrous GR 500g RMB 93.5 Consulting service
Potassium phosphate dibasic anhydrous SP 25g RMB 118.8 Consulting service
Potassium phosphate dibasic anhydrous 4N 25g RMB 118.8 Consulting service
Potassium phosphate dibasic anhydrous ACS 500g RMB 97.9 Consulting service
Potassium phosphate dibasic anhydrous USP, EP, BP 500g RMB 588.5 Consulting service
Potassium phosphate dibasic anhydrous HPLC, ≥99.0% (T) 250g RMB 2032.8 现货
Potassium phosphate dibasic anhydrous HPLC, ≥99.0% (T) 100g RMB 911.9 现货
Potassium phosphate dibasic anhydrous 分子生物学,≥99.0% (T) 1Kg RMB 2043.8 Consulting service
Potassium phosphate dibasic anhydrous 分子生物学,≥99.0% (T) 250g RMB 638 现货
Potassium phosphate dibasic anhydrous AR 10Kg RMB 1383.8 Consulting service
Character:
白色颗粒或结晶性粉末。对湿敏感。灼烧后成焦磷酸盐。易溶于水,溶液呈碱性,微溶于乙醇。
Quality Standard:
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

Storage:
密封干燥保存。
用途  分析试剂。缓冲剂。制药。
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