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71642 Sigma-Aldrich

Sodium phosphate dibasic

purum p.a., anhydrous, ≥98.0% (T)

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

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Properties

Related Categories Chemical Synthesis, Inorganic Salts, Sodium, Synthetic Reagents
Quality Level   PREMIUM
InChI Key   BNIILDVGGAEEIG-UHFFFAOYSA-L
grade   purum p.a.
assay   ≥98.0% (T)
form   powder
loss   ≤2% loss on drying, 110 °C
pH   8.8-9.4 (25 °C, 50 mg/mL in H2O)
pKa (25 °C)   (1) 2.15, (2) 6.82, (3) 12.38 (phosphoric acid)
solubility   water: soluble50 mg/mL at 25 °C
anion traces   chloride (Cl-): ≤50 mg/kg
  sulfate (SO42-): ≤1000 mg/kg
cation traces   Ca: ≤50 mg/kg
  Cd: ≤50 mg/kg
  Co: ≤50 mg/kg
  Cu: ≤50 mg/kg
  Fe: ≤50 mg/kg
  K: ≤200 mg/kg
  Ni: ≤50 mg/kg
  Pb: ≤50 mg/kg
  Zn: ≤50 mg/kg

Description

Other Notes

Same product — same quality — now Sigma-Aldrich brand

Price and Availability

Safety & Documentation

Safety Information

RIDADR 
UN 3077 9 / PGIII
WGK Germany 
1
RTECS 
WC4500000

Documents

Certificate of Analysis

Protocols & Articles
Peer-Reviewed Papers
15

References

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