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Sigma-Aldrich

Sodium citrate monobasic

Sodium citrate monobasic

purum p.a., anhydrous, ≥99.0% (T)

Sinónimos:

Citric acid monosodium salt, Sodium dihydrogen citrate

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250 G
$67.50
1 KG
$165.00

$67.50

Disponible para envío el17 de abril de 2025Detalles

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250 G
$67.50
1 KG
$165.00

About This Item

Fórmula lineal:
HOC(COONa)(CH2COOH)2
Número de CAS:
18996-35-5
Peso molecular:
214.11
Beilstein:
3920246
Número CE:
242-734-6
Número MDL:
MFCD00013067
Código UNSPSC:
12352100
ID de la sustancia en PubChem:
57652307
NACRES:
NA.22

$67.50

Disponible para envío el17 de abril de 2025Detalles

Solicitar un pedido a granel

grado

purum p.a.

Ensayo

≥99.0% (T)

Formulario

crystals

pH

3.5-3.8 (25 °C, 50 mg/mL in H2O)

solubilidad

water: soluble 50, clear, colorless

trazas de anión

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

trazas de catión

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

grupo funcional

carboxylic acid
hydroxyl

cadena SMILES

[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

Clave InChI

HWPKGOGLCKPRLZ-UHFFFAOYSA-M

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Descripción general

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.[1] 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.[2]
Sodium citrate monobasic is commonly used as a buffering agent in various applications.[3]

Sodium citrate is a useful setting retardant for the improvement of the properties of brushite cement.[4]

Aplicación

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.[5] 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.[6]

Código de clase de almacenamiento

11 - Combustible Solids

Clase de riesgo para el agua (WGK)

WGK 1

Punto de inflamabilidad (°F)

Not applicable

Punto de inflamabilidad (°C)

Not applicable

Equipo de protección personal

Eyeshields, Gloves, type N95 (US)

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Certificados de análisis (COA)

Lot/Batch Number
BCCN0049
BCCM9324
BCCL8528
BCCJ3780
BCCH6650

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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)
Influence of solid-state acidity on the decomposition of sucrose in amorphous systems (I)
Alkhamis KA
International Journal of Pharmaceutics, 362, 74-80 (2008)
Ousséni Ouédraogo et al.
Environmental research, 111(8), 1064-1069 (2011-10-22)
Fish consumption is the main source of human exposure to mercury. Studies from specific human populations have reported Hg levels lower than those modeled from consumption data. These discrepancies between expected and measured Hg levels may be explained by differences
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
Sheng Ye et al.
Dental materials : official publication of the Academy of Dental Materials, 28(9), 1004-1011 (2012-06-22)
Fillers are widely utilized to enhance the mechanical properties of polymer resins. However, polymerization stress has the potential to increase due to the higher elastic modulus achieved upon filler addition. Here, we demonstrate a hyperbranched oligomer functionalized glass filler UV
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Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

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    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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