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Sigma-Aldrich

Sodium citrate dibasic sesquihydrate

purum p.a., ≥99.0% (T)

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Synonym(s):
Citric acid disodium salt, Disodium hydrogen citrate sesquihydrate
Linear Formula:
HOC(COOH)(CH2COONa)2 · 1.5H2O
CAS Number:
Molecular Weight:
263.11
Beilstein/REAXYS Number:
3770069
EC Number:
PubChem Substance ID:

grade

purum p.a.

Quality Level

assay

≥99.0% (T)

form

crystals

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

SMILES string

O.O.O.[Na+].[Na+].[Na+].[Na+].OC(=O)CC(O)(CC([O-])=O)C([O-])=O.OC(=O)CC(O)(CC([O-])=O)C([O-])=O

InChI

1S/C6H8O7.2Na.H2O/c7-3(8)1-6(13,5(11)12)2-4(9)10;;;/h13H,1-2H2,(H,7,8)(H,9,10)(H,11,12);;;1H2/q;2*+1;/p-2

InChI key

XNZQCYSOYHAYII-UHFFFAOYSA-L

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1 of 4

This Item
359084S464171405
vibrant-m

S4641

Sodium citrate tribasic dihydrate

vibrant-m

71405

Sodium citrate tribasic dihydrate

form

crystals

form

solid

form

-

form

powder

Quality Level

200

Quality Level

200

Quality Level

200

Quality Level

200

assay

≥99.0% (T)

assay

99%

assay

≥99.0%

assay

≥99.0% (NT)

grade

purum p.a.

grade

-

grade

-

grade

-

anion traces

chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤50 mg/kg

anion traces

-

anion traces

chloride (Cl-): ≤0.003%, sulfate (SO42-): ≤0.005%

anion traces

chloride (Cl-): ≤10 mg/kg, sulfate (SO42-): ≤50 mg/kg

General description

Sodium citrate dibasic sesquihydrate is a colorless crystalline sodium salt.

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.

Storage Class

13 - Non Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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