Merck
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25114

Sigma-Aldrich

Sodium citrate tribasic hydrate

ReagentPlus®, ≥99%

Synonym(s):
Citric acid trisodium salt, Trisodium citrate hydrate
Linear Formula:
HOC(COONa)(CH2COONa)2 · aq
CAS Number:
Molecular Weight:
258.07 (anhydrous basis)
Beilstein:
3819251
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

product line

ReagentPlus®

assay

≥99%

form

solid

impurities

≤0.001% heavy metals (as Pb)
≤0.04% free alkali (as NaOH)
≤0.06% free acid (as C6H8O7)

anion traces

chloride (Cl-): ≤20 mg/kg
sulfate (SO42-): ≤50 mg/kg

cation traces

As: ≤2 mg/kg
Fe: ≤10 mg/kg

SMILES string

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

InChI

1S/C6H8O7.3Na.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;3*+1;/p-3

InChI key

PKIDNTKRVKSLDB-UHFFFAOYSA-K

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Legal Information

ReagentPlus is a registered trademark of Sigma-Aldrich Co. LLC

Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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