Merck
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W302600

Sigma-Aldrich

Sodium citrate dihydrate

≥99%, FG

Synonym(s):
Trisodium citrate dihydrate, Citric acid trisodium salt dihydrate, Sodium citrate tribasic dihydrate
Linear Formula:
HOC(COONa)(CH2COONa)2 · 2H2O
CAS Number:
Molecular Weight:
294.10
FEMA Number:
3026
Beilstein:
6104939
EC Number:
MDL number:
PubChem Substance ID:

Quality Level

biological source

synthetic

grade

FG
Halal
Kosher

reg. compliance

EU Regulation 1333/2008 & 178/2002
EU Regulation 178/2002

assay

≥99%

mp

>300 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

Organoleptic

odorless

SMILES string

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

InChI

1S/C6H8O7.3Na.2H2O/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);;;;2*1H2/q;3*+1;;/p-3

InChI key

NLJMYIDDQXHKNR-UHFFFAOYSA-K

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General description

Sodium citrate dihydrate is used as a buffer, pH controlling agent, emulsifier, sequestrant and complexing agent in food industry.

Application

Sodium citrate dihydrate is used as a buffering, sequestering, or emulsifying agent in foods, beverages, and various other industrial applications. It can also be used in detergent formulations due to its rapid biodegradability characteristics.

Packaging

10, 25 kg in fiber drum
1 kg in poly bottle

Storage Class Code

11 - 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

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Dictionary of Food ingredients, 129-129 (2011)
Development of better-quality assay method for the citric acid and sodium citrate in ophthalmic/oral solutions and their application to deformulation studies
Hotha KK, et al.
American Journal of Analytical Chemistry, 5, 1249-1249 (2014)
Characterization of sodium tripolyphosphate and sodium citrate dehydrate residues on surfaces
Gurses MS, et al.
Talanta, 176, 8-16 (2018)
Megan E Oest et al.
Radiation research, 181(4), 439-443 (2014-04-08)
Advanced glycation end products (AGEs) are an abnormal modification of the collagenous matrix in bone, and their accumulation contributes to alteration of mechanical properties. Using a mouse model of focal external radiotherapy, we quantified the time-dependent changes in the glycation
Christophe Chapard et al.
Molecular cell, 75(2), 224-237 (2019-06-16)
Cohesin entraps sister DNAs within tripartite rings created by pairwise interactions between Smc1, Smc3, and Scc1. Because Smc1/3 ATPase heads can also interact with each other, cohesin rings have the potential to form a variety of sub-compartments. Using in vivo cysteine

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