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
71405
Citrate de sodium tribasique dihydrate
ACS reagent grade, ≥99.0% (NT), powder
Synonyme(s) :
Acide citrique trisodium salt dihydrate, Citrate trisodique dihydrate
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A propos de cet article
Nom du produit
Citrate de sodium tribasique dihydrate, puriss. p.a., ACS reagent, ≥99.0% (NT)
Quality Segment
grade
ACS reagent, puriss. p.a.
assay
≥99.0% (NT)
form
powder
impurities
11-13% water (KFT)
pH
7.0-9.0 (25 °C, 50 mg/mL in H2O)
mp
>300 °C (lit.)
solubility
water: soluble 29.4 g/L at 20 °C
anion traces
chloride (Cl-): ≤10 mg/kg, sulfate (SO42-): ≤50 mg/kg
cation traces
Ca: ≤50 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤100 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, NH4+: ≤10 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg, heavy metals: ≤5 ppm (by ICP-OES)
SMILES string
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
InChI key
NLJMYIDDQXHKNR-UHFFFAOYSA-K
General description
Application
- Kinetic Study of Silver Nanoparticle Formation: This study examines the influence of varying concentrations of sodium citrate tribasic dihydrate in the synthesis of silver nanoparticles. The sodium citrate acts as a reducing agent, impacting the formation and stability of the nanoparticles. The detailed kinetic analysis contributes to understanding the nucleation and growth mechanisms of silver nanoparticles in the presence of sodium citrate tribasic dihydrate (SA Diaz - The Undergraduate Research Journal at the University of Northern Colorado, 2019).
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Cet article | |||
|---|---|---|---|
| form powder | form - | form powder, solid | form powder or crystals |
| assay ≥99.0% (NT) | assay ≥99.0% | assay - | assay ≥99% |
| solubility water: soluble 29.4 g/L at 20 °C | solubility water: soluble 29.4 g/L at 20 °C (completely) | solubility - | solubility water: soluble 100 mg/mL |
| Quality Level 200 | Quality Level 200 | Quality Level 500 | Quality Level 200 |
| grade ACS reagent, puriss. p.a. | grade ACS reagent | grade - | grade Molecular Biology |
| cation traces Ca: ≤50 mg/kg, Co: ≤5 mg/kg, Cu: ≤5 mg/kg, K: ≤100 mg/kg, Mn: ≤5 mg/kg, Ni: ≤5 mg/kg, Zn: ≤5 mg/kg, Cd: ≤5 mg/kg, Fe: ≤5 mg/kg, NH4+: ≤10 mg/kg, heavy metals: ≤5 ppm (by ICP-OES), Cr: ≤5 mg/kg, Pb: ≤5 mg/kg, Mg: ≤5 mg/kg | cation traces Ca: ≤0.005%, Fe: ≤5 ppm, heavy metals: ≤5 ppm (by ICP-OES) | cation traces - | cation traces - |
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Classe de stockage
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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Numéro d'article de commerce international
| Référence | GTIN |
|---|---|
| 71405-250G | 04061832844954 |
| 71405-50KG | 04061832978062 |
| 71405-5KG | 04061832978079 |
| 71405-1KG | 04061832844947 |
| 71405-6X1KG | 04061835365845 |
| 71405-500G | 04061832844961 |
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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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