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228729

Sigma-Aldrich

Sodium L-tartrate dibasic dihydrate

≥99%, ACS reagent

Synonym(s):

Sodium tartrate dibasic dihydrate, L-(+)-Tartaric acid disodium salt, Disodium tartrate dihydrate, Sodium tartrate dihydrate

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About This Item

Empirical Formula (Hill Notation):
C4H4Na2O6 · 2H2O
CAS Number:
6106-24-7
Molecular Weight:
230.08
Beilstein:
6121732
EC Number:
212-773-3
MDL number:
MFCD00150035
UNSPSC Code:
12352100
PubChem Substance ID:
24853705
NACRES:
NA.21
Assay:
≥99%
grade:
ACS reagent
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grade

ACS reagent

Quality Level

200

Assay

≥99%

optical activity

[α]20/D +26°, c = 1 in H2O

impurities

≤0.005% insolubles

loss

15.61-15.71% loss on drying

pH

7.0-9.0

anion traces

chloride (Cl-): ≤5 ppm
phosphate (PO43-): ≤5 ppm
sulfate (SO42-): ≤0.005%

cation traces

Ca: ≤0.01%
Fe: ≤0.001%
NH4+: ≤0.003%
heavy metals: ≤5 ppm

SMILES string

[Na+].[Na+].[H]O[H].[H]O[H].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O

InChI

1S/C4H6O6.2Na.2H2O/c5-1(3(7)8)2(6)4(9)10;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;2*1H2/q;2*+1;;/p-2/t1-,2-;;;;/m1..../s1

InChI key

FGJLAJMGHXGFDE-DGFHWNFOSA-L

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General description

Sodium L-tartrate is an organic acid mainly found in grapes.[1]

Application

Sodium L-tartrate dibasic dihydrate may be used in the preparation of solid-state M–L compounds (M = bivalent metal ions ie., Mn, Fe, Co, Ni, Cu, Zn; L = tartrate). It may also be used in the preparation of copper (II) and cobalt (II) tartrate complexes by reacting with the corresponding metal salts.[1] These complexes can undergo thermal decomposition to form Cu and Co metal oxide nanoparticles.[2]

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000426367
0000426367
0000416414
0000416414
MKCV7894

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Synthesis, characterization and thermal behaviour on solid tartrates of some bivalent metal ions
Rodrigues EC, et al.
Thermochimica Acta, 496(1), 156-160 (2009)
Synthesis of Cu and Co metal oxide nanoparticles from thermal decomposition of tartrate complexes
Palacios-Hernandez T, et al.
Inorgorganica Chimica Acta, 392, 277-282 (2012)

Questions

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

    1 answer

    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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