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71498

Sigma-Aldrich

Einwertiges Natriumcitrat

Sodium citrate monobasic

purum p.a., anhydrous, ≥99.0% (T)

Synonym(e):

Natriumhydrogencitrat, Zitronensäure Mononatriumsalz

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250 G
61,80 €
1 KG
114,00 €

61,80 €

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250 G
61,80 €
1 KG
114,00 €

About This Item

Lineare Formel:
HOC(COONa)(CH2COOH)2
CAS-Nummer:
18996-35-5
Molekulargewicht:
214.11
Beilstein:
3920246
EG-Nummer:
242-734-6
MDL-Nummer:
MFCD00013067
UNSPSC-Code:
12352100
PubChem Substanz-ID:
57652307
NACRES:
NA.22

61,80 €

Versandbereit am22. April 2025Details

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Qualitätsniveau

300

Qualität

purum p.a.

Assay

≥99.0% (T)

Form

crystals

pH-Wert

3.5-3.8 (25 °C, 50 mg/mL in H2O)

Löslichkeit

water: soluble 50, clear, colorless

Anionenspuren

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

Kationenspuren

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

Funktionelle Gruppe

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

InChIKey

HWPKGOGLCKPRLZ-UHFFFAOYSA-M

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Allgemeine Beschreibung

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]

Anwendung

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]

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)

Hier finden Sie alle aktuellen Versionen:

Analysenzertifikate (COA)

Lot/Batch Number
BCCN0049
BCCM9324
BCCL8528
BCCJ3780
BCCH6650

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Die Dokumentenbibliothek aufrufen

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

    1 Antwort

    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 Antwort

    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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