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Principaux documents

C3434

Sigma-Aldrich

Citrate de sodium tribasique dihydrate

BioXtra, ≥99.0% (titration)

Synonyme(s) :

Acide citrique trisodium salt dihydrate, Citrate trisodique dihydrate

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About This Item

Formule linéaire :
HOC(COONa)(CH2COONa)2 · 2H2O
Numéro CAS:
Poids moléculaire :
294.10
Numéro Beilstein :
6104939
Numéro CE :
Numéro MDL:
Code UNSPSC :
12161700
ID de substance PubChem :

Gamme de produits

BioXtra

Niveau de qualité

Pureté

≥99.0% (titration)

Forme

powder or crystals

Impuretés

Insoluble matter, passes filter test

pH

7.5-9.0 (20 °C, 0.1 M in H2O)

Pf

>300 °C (lit.)

Solubilité

H2O: 0.1 M at 20 °C, clear, colorless

Traces d'anions

chloride (Cl-): ≤0.001%
sulfate (SO42-): ≤0.005%

Traces de cations

Al: ≤0.0005%
As: ≤0.00001%
Ba: ≤0.0005%
Bi: ≤0.0005%
Ca: ≤0.005%
Cd: ≤0.0005%
Co: ≤0.0005%
Cr: ≤0.0005%
Cu: ≤0.0005%
Fe: ≤0.0005%
K: ≤0.01%
Li: ≤0.0005%
Mg: ≤0.0005%
Mn: ≤0.0005%
Mo: ≤0.0005%
NH4+: ≤0.001%
Ni: ≤0.0005%
Pb: ≤0.0005%
Zn: ≤0.0005%

Absorption

≤0.010 at 260 in H2O at 0.1 M
≤0.010 at 280

Chaîne SMILES 

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

Clé InChI

NLJMYIDDQXHKNR-UHFFFAOYSA-K

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Actions biochimiques/physiologiques

Sodium citrate can act as a buffering agent, resisting changes in pH. Used in blood collection tubes, the citrate chelates calcium ions in blood and thereby disrupts blood clotting. Citrate is a intermediate in the TCA cycle and fatty acid synthesis. Citrate is an allosteric modulator of acetyl-CoA carboxylase, the enzyme that regulates the conversion of acetyl-CoA to malonyl-CoA.

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 1

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)


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