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W302600

Sigma-Aldrich

Sodium citrate dihydrate

≥99%, FG

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Synonym(s):
Sodium citrate tribasic dihydrate, Citric acid trisodium salt dihydrate, Trisodium citrate dihydrate
Linear Formula:
HOC(COONa)(CH2COONa)2 · 2H2O
CAS Number:
Molecular Weight:
294.10
FEMA Number:
3026
Beilstein/REAXYS Number:
6104939
EC Number:
MDL number:
UNSPSC Code:
12164502
PubChem Substance ID:
E Number:
E 331 (iii)
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Halal
Kosher

reg. compliance

EU Regulation 1333/2008 & 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 food and beverages. It can also be used in detergent formulations due to its rapid biodegradability characteristics.

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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