Potassium phosphate dibasic anhydrous

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。