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30435 Sigma-Aldrich

Sodium phosphate dibasic dihydrate

puriss. p.a., Reag. Ph. Eur., 98.5-101.0% (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 Analytical Reagents, Analytical Reagents for General Use, Analytical/Chromatography, Essential Chemicals, Puriss p.a.,
grade   Reag. Ph. Eur.
InChI Key   KDQPSPMLNJTZAL-UHFFFAOYSA-L
grade   puriss. p.a.
assay   98.5-101.0% (calc. to the dried substance)
impurities   reducing impurities, complies
  ≤0.0005% heavy metals (as Pb)
  ≤0.001% total nitrogen (N)
  ≤0.5% NaH2PO4 (calc. to dried subst.)
loss   19.5-21.0% loss on drying, 130 °C
pH   9.0-9.2 (20 °C, 5%)
anion traces   chloride (Cl-): ≤10 mg/kg
  sulfate (SO42-): ≤50 mg/kg
cation traces   As: ≤0.5 mg/kg
  Fe: ≤5 mg/kg
  K: ≤50 mg/kg
suitability   in accordance for appearance of solution
Safety & Documentation

Safety Information

WGK Germany 
1

Documents

Certificate of Analysis

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Protocols & Articles
Peer-Reviewed Papers
15

References

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