Biological Buffers

Sodium Chloride

Sodium Chloride Specification Comparison PDF Printer friendly PDF version (335 Kb) FAQs and Live Chat Banner Image


Sigma-Aldrich® Sodium Chloride Physical Properties
Molecular Formula NaCl Beilstein Registry 3534976 Melting Point 801 °C(lit.)
Molecular Weight 58.44 MDL Number MFCD00003477 EG/EC Number 231-598-3
CAS Number 7647-14-5        
Sigma-Aldrich Sodium Chloride Specifications Comparison
  S1679 S9888 S5629 S5886 S3014 S6191 S7653 71376
Grade meets USP testing specifications ACS reagent ≥99.0% plant cell culture tested, ≥99.5% cell, insect cell culture tested for molecular biology,
≥98% (titration)
BPC, ≥99.5% (titration), cell culture tested BioXtra, ≥99.5% BioUltra, for molecular biology,
≥99.5% (AT)
Purity ≥99.0% ≥99.0% ≥99.5% ≥99.5% ≥98% ≥99.5% ≥99.5% ≥99.5%
Reagent Testing
  S1679 S9888 S5629 S5886 S3014 S6191 S7653 71376
260NM             ≤0.01 ≤0.01
280NM             ≤0.01 ≤0.01
Identity X              
pH   5.0 - 9.0
(25 °C, 5% in solution)
        5.0 - 8.0
(20 °C, 1M in H2O)
5.0 - 8.0
(25 °C, 1M in H2O)
LOD ≤0.5%              
Insoluable Matter   ≤0.005%         filter test filter test
Life Science Testing
  S1679 S9888 S5629 S5886 S3014 S6191 S7653 71376
Endotoxin           X    
Cell test       X   X    
Insect cell test       X   X    
Plant cell test     X     X    
RNase         X X   X
DNAse         X X   X
Protease         X X   X
Phosphatase               X
Trace Elemental Impurities
  S1679 S9888 S5629 S5886 S3014 S6191 S7653 71376
Bromide(Br) ≤0.010% ≤0.01%         ≤0.005% ≤0.0050%
Iodide(I) X ≤0.002%         ≤0.001% ≤0.0010%
Phosphate(P) ≤0.0025% ≤0.0005%     ≤0.0005%   ≤0.0005% ≤0.0005%
Sulfate(SO4) ≤0.020% ≤0.004%         ≤0.05% ≤0.0100%
Aluminum(Al)             ≤0.0005% ≤0.0005%
Arsenic(As) ≤0.0001%           ≤0.0001% ≤0.00001%
Barium(Ba) X X         ≤0.0005% ≤0.0005%
Bismuth(Bi)             ≤0.0005% ≤0.0005%
Calcium(Ca)   ≤0.002%         ≤0.002% ≤0.0010%
Cadmium(Cd)             ≤0.0005% ≤0.0005%
Cobalt(Co)             ≤0.0005% ≤0.0005%
Chromium(Cr)             ≤0.0005% ≤0.0005%
Copper(Cu)             ≤0.0005% ≤0.0005%
Iron(Fe) ≤0.0002% ≤0.0002%         ≤0.0001% ≤0.0001%
Potassium(K) ≤0.05% ≤0.005%     ≤0.0050%   ≤0.005% ≤0.0050%
Lithium(L)             ≤0.0005% ≤0.0005%
Magnesium(Mg)   ≤0.001%         ≤0.0005% ≤0.0005%
Manganese(Mn)             ≤0.0005% ≤0.0005%
Molybdenum             ≤0.0005% ≤0.0005%
Nickel(Ni)             ≤0.0005% ≤0.0005%
Lead(Pb)   ≤0.0005%     ≤0.0005% ≤0.0005% ≤0.0005% ≤0.0005%
Strontium(Sr)             ≤0.0005% ≤0.0005%
Zinc(Zn)             ≤0.0005% ≤0.0005%
Total Nitrogen               ≤0.001%
Chlorate and Nitrate(NO3)   ≤0.003%            
Ferrocyanides X              
Magnesium and Alkaline Earth Metals ≤0.01%              
Nitrites X              
Heavy Metals ≤0.0005%              
 
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