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04272 Sigma-Aldrich

Sodium phosphate dibasic dihydrate

meets analytical specification of Ph. Eur., BP, 98.5-101% (calc. to the dried substance)

Synonym: sec-Sodium phosphate, Disodium hydrogen phosphate dihydrate, Disodium phosphate, di-Sodium hydrogen phosphate dihydrate

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Properties

Related Categories Chemical Synthesis, Inorganic Salts, Sodium, Synthetic Reagents
Agency/Method   meets analytical specifications of BP
  meets analytical specifications of Ph. Eur.
Quality Level   200
assay   98.5-101% (calc. to the dried substance)
form   crystals
quality   meets analytical specification of Ph. Eur., BP
impurities   reducing matter, complies
  residual solvents, complies
  ≤0.001% heavy metals (as Pb)
  ≤1% NaH2PO4 (calc. to dried subst.)
loss   19.5-21% loss on drying, 130 °C
pH   9.0-9.4 (20 °C, 1%)
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤100 mg/kg
cation traces   As: ≤2 mg/kg
  Fe: ≤10 mg/kg
suitability   complies for appearance of solution
SMILES string   O.O.[Na+].[Na+].OP([O-])([O-])=O
InChI   1S/2Na.H3O4P.2H2O/c;;1-5(2,3)4;;/h;;(H3,1,2,3,4);2*1H2/q2*+1;;;/p-2
InChI key   KDQPSPMLNJTZAL-UHFFFAOYSA-L

Description

Application

Sodium phosphate dibasic dihydrate has been used for isolating DNA and RNA from bacterial samples of human gastrointestinal (GI) tract.

Biochem/physiol Actions

Sodium phosphate dibasic dehydrate is an important component of running buffer of denaturing gel electrophoresis.

Safety & Documentation

Safety Information

WGK Germany 
WGK 1
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable

Documents

Certificate of Analysis (COA)

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Protocols & Articles
Peer-Reviewed Papers
15

References

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