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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

  •  PubChem Substance ID 57652327

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Properties

Related Categories Analytical/Chromatography, Essential Chemicals, QuEChERS Bulk Adsorbents and Salts, Research Essentials, Salts,
grade   purum p.a.
assay   ≥99.0% (T)
pH   4.6-5.2 (25 °C, 50 mg/mL in H2O)
solubility   water: soluble263.1  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

Description

Packaging

1 kg in poly bottle

250 g in poly bottle

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.

Price and Availability


All labs need water
Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
Protocols & Articles

Articles

GC Determination of Fatty Acids in Infant Formula by AOAC Method 2012.13

The nutritional content of infant formula is considered extremely critical, and thus it is one of the most regulated food products worldwide. Most commercial infant formulas are derived from cow’s mi...
Katherine K Stenerson, Olga I Shimelis, Gary Oshi
Reporter US, Volume 33.4 (Food & Beverage Supplement)
Keywords: Chromatography, Flame ionization detector, Gas chromatography, Hydrogenations, Phase transitions, Sample preparations, Separation, Transesterifications

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SPE Cartridges (Tubes) - Phase Selection Guide

The SPE Tube Configuraton Guide will help you choose the appropriate bed weight and cartridge dimensions.
Keywords: Agriculture, Calorimetry, Environmental, Fractionation, High performance liquid chromatography, Liquid chromatography mass spectrometry, Mass spectrometry, Pesticides, Pharmaceutical, Solid phase extractions

Peer-Reviewed Papers
15

References

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