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Sodium citrate

Cas:
6132-04-3
Molecular Structure:
MDL:
--MFCD00150031
Molecular Formula:
C6H5Na3O7·2H2O;HOC(COONa)(CH2COONa)2·2H2O
Molecular Weight:
294.10
Alias:
枸橼酸钠,二水合柠檬酸三钠盐,柠檬酸钠二水,柠檬酸三钠,2-羟基丙烷-1,2,3-三羧酸钠 Sodium citrate tribasic dihydrate Citric acid trisodium salt dihydrate Trisodium citrate dihydrate
Product order:
Name Specifications Packing Price Delivery
Sodium citrate 98%(titration) 100g RMB 165 现货
Sodium citrate 98%(titration) 250g RMB 363 现货
Sodium citrate ≥99% by titration 100g RMB 99 现货
Sodium citrate ≥99% by titration 500g RMB 462 现货
Sodium citrate ≥99% by titration 1000g Inquiry 现货
Sodium citrate 100g RMB 148.5 现货
Sodium citrate 500g RMB 577.5 现货
Sodium citrate ACS, ≥99.0% (NT) 500g RMB 107.8 现货
Sodium citrate CP 500g RMB 60.5 现货
Sodium citrate AR 500g RMB 63.8 现货
Character:
无色或白色结晶,无气味。味咸而凉。空气中稳定。在150℃时失水。溶于水(1.3份冷水、0.6份沸水),不溶于乙醇。水溶液对石蕊呈微碱性,pH约为8。半数致死量(大鼠,腹腔)1548mg/kg。
密度:1.76
熔点:300℃
Quality Standard:
 
   GB/T  3-1298-80
项目Item                              分析纯     化学纯
                                       (AR)       (CP)
含量(C6H5Na3O7·2H2O)Assay,%          ≥99.0      98.0
水溶液反应Water solution reaction      合格      合格
澄清度试验Clarity                      合格      合格
水不溶物Insiluble matter in water,%  ≤0.005     0.01
氯化合物(以Cl计)Chlorine,%           ≤0.002     0.005
硫酸盐(SO4)Sulfate,%                 ≤0.002     0.005
磷化合物(以PO4计)Phosphorus,%        ≤0.015     0.03
铁(Fe)Iron,%                         ≤0.0004    0.001
钙(Ca)Calcium,%                      ≤0.01      0.02
重金属(以Pb计)Heavy metals,%         ≤0.0005    0.001

ACS级
项目名称                          ACS Grade
含量Assay                           ≥99.0%
pH(5%溶液,25.0℃)
pH of a 5% solution at 25.0℃        7.0-9.0
水不溶物Insoluble matter            ≤0.005%
氯化物(Cl)Chloride                  ≤0.003%
硫酸盐(SO4)Sulfate                  ≤0.005%
铵(NH3)Ammonia                      ≤0.003%
钙(Ca)Calcium                       ≤0.005%
重金属(以Pb计)Heavy metals          ≤5ppm
铁(Fe)Iron                          ≤5ppm

品级Grade                               分子生物学级  
                                   (for Molecular Biology, ≥99%(GC) )
外观Appearance                          白色粉末
纯度Purity                              ≥99.0% (GC)
水溶解试验solubility in water           Colorless ,Clear ,100 mg in 1 mL H2O
钠Sodium (Na)                           22.0 - 24.0 %
铅Lead (Pb)                             ≤5 ppm
铁Iron (Fe)                             ≤5 ppm
铵Ammonia                               ≤10 ppm
DNAse, Exonuclease Detection            None Detected
NICKase,Endonuclease Detection          None Detected
RNAse Detection                         None Detected
Protease Detection                      None Detected

Storage:
密封保存。
用途  Buffer component in the preparation of total ribosomal RNA from E. coli
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