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71498

Sodium citrate monobasic

Name: Sodium citrate monobasic
Brand: ALDRICH

purum p.a., anhydrous, ≥99.0% (T)

Synonym(s):

Citric acid monosodium salt, Sodium dihydrogen citrate

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About This Item

Linear Formula:

HOC(COONa)(CH₂COOH)₂

CAS Number:

18996-35-5

Molecular Weight:

214.11

UNSPSC Code:

12352100

NACRES:

NA.22

PubChem Substance ID:

57652307

EC Number:

242-734-6

Beilstein/REAXYS Number:

3920246

MDL number:

MFCD00013067

Assay:

≥99.0% (T)

Form:

crystals

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Properties

Quality Level

300

grade

purum p.a.

assay

≥99.0% (T)

form

crystals

pH

3.5-3.8 (25 °C, 50 mg/mL in H₂O)

solubility

water: soluble 50, clear, colorless

anion traces

chloride (Cl^-): ≤50 mg/kg, sulfate (SO₄^2-): ≤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

functional group

carboxylic acid, hydroxyl

SMILES string

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

InChI

1S/C6H8O7.Na/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);/q;+1/p-1

InChI key

HWPKGOGLCKPRLZ-UHFFFAOYSA-M

Description

General description

Sodium citrate monobasic is commonly used as a buffering agent in various applications.

Sodium citrate is a useful setting retardant for the improvement of the properties of brushite cement.

Sodium citrate monobasic (Sodium dihydrogen citrate) is the monosodium salt of citric acid. Isopiestic method has been proposed for the evaluation of vapor-liquid equilibrium parameters (water activity, vapor pressure, osmotic coefficient and activity coefficient) for the binary aqueous mixtures of sodium dihydrogen citrate. X-ray diffraction method has been reported to investigate the crystal structure of sodium dihydrogen citrate. Its crystals are monoclinic having space group of P2₁/a.

Application

Sodium citrate monobasic is suitable for use in the synthesis of 16 functional alkene-terminated hyperbranched oligomer, useful for the preparation of composite system for dental composite applications. It is suitable for use in the preparation of gastric solutions, to investigate the effects of cooking methods and of the co-ingestion of selected food items on Hg bioaccessibility in fish species.

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Storage Class

11 - Combustible Solids

wgk

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Vapor- Liquid Equilibria, Density, and Speed of Sound of Aqueous Solutions of Sodium Dihydrogen Citrate or Disodium Hydrogen Citrate.

Sadeghi R, et al.

Journal of Chemical and Engineering Data, 55(12), 5874-5882 (2010)

Ionic modification of calcium phosphate cement viscosity. Part II: hypodermic injection and strength improvement of brushite cement.

J E Barralet et al.

Biomaterials, 25(11), 2197-2203 (2004-01-27)

Brushite-forming calcium phosphate cements are of great interest as bone replacement materials because they are resorbable in physiological conditions. However, their short setting times, low mechanical strengths and limited injectability limit broad clinical application. In this study, we showed that

The state of ionization of crystalline sodium dihydrogen citrate¹

Glusker JP, et al.

Journal of the American Chemical Society, 82(11), 2964-2965 (1960)

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Global Trade Item Number

SKU	GTIN
71498-250G	04061835052400
71498-1KG	04061832848785