Sodium citrate dibasic sesquihydrate purum p.a., (T) (250g)

SKU:
71635-250G
$44.30

Description

71635 SIGMA-ALDRICH

Sodium citrate dibasic sesquihydrate

purum p.a., ≥99.0% (T)

Synonym: Citric acid disodium salt, Disodium hydrogen citrate sesquihydrate

 

  • CAS Number 6132-05-4

  • Linear Formula HOC(COOH)(CH2COONa)2 · 1.5H2O

  • Molecular Weight 263.11

  •  Beilstein Registry Number 3770069

  •  EC Number 205-623-3

Properties

grade   purum p.a.
assay   ≥99.0% (T)
pH   4.6-5.2 (25 °C, 50 mg/mL in H2O)
solubility   water: soluble 263.1  g/L
anion traces   chloride (Cl-): ≤50 mg/kg
 - sulfate (SO42-): ≤50 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: ≤100 mg/kg
-  Ni: ≤50 mg/kg
-  Pb: ≤50 mg/kg
-  Zn: ≤50 mg/kg

Application

Sodium citrate dibasic sesquihydrate may be employed in the following studies:
• In the Supel Que Citrate (EN) tubes for the quantification of pesticides in blackcurrants by triple quadrupole GC-QqQ-MS/MS [Gas chromatography coupled to tandem mass spectrometry (GC-MS/MS) coupled with triple quadrupole (QqQ) analyzer] method.
• Dispersive solid phase extraction (dSPE) method, commonly referred as QuEChERS.2
• Preparation of RNA precipitation solution.

General description

Sodium citrate dibasic sesquihydrate is a colorless crystalline sodium salt.