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
228729
Sodium L-tartrate dibasic dihydrate
ACS reagent grade, ≥99%
Synonym(s):
Sodium tartrate dibasic dihydrate, L-(+)-Tartaric acid disodium salt, Disodium tartrate dihydrate, Sodium tartrate dihydrate
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About This Item
Product Name
Sodium L-tartrate dibasic dihydrate, ACS reagent, ≥99%
grade
ACS reagent
Quality Segment
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
General description
Application
1 of 1
This Item | |||
|---|---|---|---|
| assay ≥99% | assay - | assay - | assay ≥99.5% (perchloric acid titration) |
| Quality Level 200 | Quality Level 300 | Quality Level - | Quality Level 300 |
| grade ACS reagent | grade certified reference material | grade pharmaceutical primary standard | grade - |
| impurities ≤0.005% insolubles | impurities - | impurities - | impurities - |
| anion traces chloride (Cl-): ≤5 ppm, sulfate (SO42-): ≤0.005%, phosphate (PO43-): ≤5 ppm | anion traces - | anion traces - | anion traces chloride (Cl-): ≤0.0005%, phosphate (PO43-): ≤0.0005%, sulfate (SO42-): ≤0.002% |
| pH 7.0-9.0 | pH 8 (25 °C, 50 g/L in H2O) | pH - | pH 8 (25 °C, 50 g/L in H2O) |
Storage Class
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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How can I determine the shelf life / expiration / retest date of this product?
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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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