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S7907 Sigma-Aldrich

Sodium phosphate dibasic

BioXtra, ≥99.0%

Synonym: sec-Sodium phosphate, Disodium hydrogen phosphate, Disodium phosphate, Sodium hydrogenphosphate

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Properties

Related Categories Apoptosis and Cell Cycle, BioXtra Buffers, Biochemicals and Reagents, Biological Buffers, Buffers,
Quality Level   200
product line   BioXtra
assay   ≥99.0%
form   powder or crystals
impurities   ≤0.1% Insoluble matter
pH   8.0-11.0 (20 °C, 1 M in H2O)
pKa (25 °C)   (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
solubility   H2O: 1 M at 20 °C, clear, colorless
anion traces   chloride (Cl-): ≤0.05%
  sulfate (SO42-): ≤0.05%
cation traces   Al: ≤0.0005%
  Ca: ≤0.002%
  Cu: ≤0.0005%
  Fe: ≤0.002%
  K: ≤0.005%
  Mg: ≤0.005%
  NH4+: ≤0.05%
  Pb: ≤0.001%
  Zn: ≤0.0005%
absorption   <0.05 at 260 in H2O at 1 M
  <0.05 at 280 in H2O at 1 M
SMILES string   [Na+].[Na+].[H]OP([O-])([O-])=O
InChI   1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
InChI key   BNIILDVGGAEEIG-UHFFFAOYSA-L

Description

Packaging

1 kg in poly bottle

100, 500 g in poly bottle

5 kg in poly drum

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
UN 3077 9 / PGIII
WGK Germany 
WGK 1
RTECS 
WC4500000
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Certificate of Origin (COO)

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Buffers - From Bnech to Bulk
Protocols & Articles

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Peer-Reviewed Papers
15

References

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