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/418/501/product-dating-information-06-25-mk.pdf
251275
Acide citrique
ACS reagent grade, ≥99.5%, crystals
Synonyme(s) :
2-Hydroxy-1,2,3-propanetricarboxylic acid, 2-Hydroxypropan-1,2,3-tricarboxylic acid
Sélectionner une taille de conditionnement
| À vous/Référence | Disponibilité | Prix |
|---|---|---|
5 g | Disponible dès aujourd'huiDeSt QuentinFallavier | 49,10 € |
100 g | Disponible dès aujourd'huiDeSt QuentinFallavier | 52,50 € |
500 g | Disponible dès aujourd'huiDeSt QuentinFallavier | 87,70 € |
1 kg | Disponible dès aujourd'huiDeSt QuentinFallavier | 162,00 € |
2.5 kg | Disponible dès aujourd'huiDeSt QuentinFallavier | 295,00 € |
12 kg | Disponible dès aujourd'huiDeSchnelldorf | 833,00 € |
A propos de cet article
Nom du produit
Acide citrique, ACS reagent, ≥99.5%
grade
ACS reagent
Quality Segment
assay
≥99.5%
form
crystals
expl. lim.
8 %, 65 °F
impurities
Substances carbonizable by hot sulfuric acid, passes test
ign. residue
≤0.02%
pKa
(1) 3.13, (2) 4.76, (3) 6.4
mp
153-159 °C (lit.)
anion traces
chloride (Cl-): ≤0.001%, oxalate (C2O42-): passes test (limit about 0.003%), phosphate (PO43-): ≤0.001%, sulfate (SO42-): ≤0.002%
cation traces
Fe: ≤3 ppm, Pb: ≤2 ppm
functional group
carboxylic acid, hydroxyl
storage temp.
room temp
SMILES string
OC(=O)CC(O)(CC(O)=O)C(O)=O
InChI
1S/C6H8O7/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)
InChI key
KRKNYBCHXYNGOX-UHFFFAOYSA-N
Gene Information
human ... SRC(6714)
General description
Application
- un tampon de citrate-phosphate pour utilisation dans les tests ELISA (Enzyme-linked immunosorbent assay).
- une solution aqueuse d′oxyde de cérium stabilisée au citrate, qui a été utilisée dans la synthèse de nanoparticules d′oxyde de cérium.
- une solution mère tamponnée d′acide citrique-Na2HPO4 utilisée dans la mesure de l′activité d′uréase fécale.[1]
- la solution A anticoagulante de citrate-dextrose (ACD-A), utilisée lors de l′isolement des cellules progénitrices endothéliales dérivées du sang.[2]
L′acide citrique a également été utilisé :
- dans un nouveau processus qui permet le contrôle de la taille des particules lors de la synthèse de cuboctaèdres de palladium.
- pour préparer des nanopoints de carbone dérivés de l′acide citrique par une méthode de carbonisation de bas en haut.
- comme agent chélateur bicomposant pour la synthèse de Li4Ti5O12 (oxyde de lithium-titanate) par une nouvelle méthode sol-gel.
Legal Information
1 of 1
Cet article | |||
|---|---|---|---|
| assay ≥99.5% | assay ≥99.5% | assay ≥99.5% (T) | assay 99% |
| Quality Level 200 | Quality Level 300, 400 | Quality Level 200 | Quality Level 200 |
| storage temp. room temp | storage temp. - | storage temp. - | storage temp. - |
| mp 153-159 °C (lit.) | mp 153-159 °C (lit.) | mp 153-159 °C (lit.) | mp 153-159 °C (lit.) |
| form crystals | form powder or granules | form powder or crystals | form crystals |
| functional group carboxylic acid, hydroxyl | functional group - | functional group - | functional group carboxylic acid, hydroxyl |
Still not finding the right product?
Explore all of our products under Acide citrique
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Classe de stockage
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
Faites votre choix parmi les versions les plus récentes :
Déjà en possession de ce produit ?
Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.
-
How can I determine the shelf life / expiration / retest date of this product?
1 réponse-
Utile ?
-
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 réponse-
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
Utile ?
-
-
Technical question: is this product sourced in the EU. Is it for RUO.
1 réponse-
Yes, this product is intended for research use only. The country of origin may vary lot to lot.
Utile ?
-
-
Do you have a recommendation for an expiry date after opening this reagent (storage in dry place at RT)?
1 réponse-
This product does not contain an expiration date or recommended retest date. Products with no expiration date or recommended retest date should be routinely inspected by customers to ensure they perform as expected. These products are also subject to a one year warranty from the date of shipment. For more information you may access the "Product Dating Information" document under "ADDITIONAL USEFUL DOCUMENTS ABOUT OUR PRODUCTS" at the bottom of the Quality Services page with this link: https://www.sigmaaldrich.com/life-science/quality-and-regulatory-management/quality-services.
Utile ?
-