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
217255
Potassium sodium tartrate tetrahydrate
ACS reagent grade, 99.0-102.0% (ACS specification), 99%, powder or crystals
Synonym(s):
L(+)-Tartaric acid potassium Sodium salt, Rochelle salt, Seignette salt
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| Pack Size | SKU | Availability | Price |
|---|
About This Item
Product Name
Potassium sodium tartrate tetrahydrate, ACS reagent, 99%
grade
ACS reagent
Quality Level
agency
suitable for SM 4500 - NH3
assay
99%, 99.0-102.0% (ACS specification)
form
powder or crystals
impurities
≤0.005% insolubles
pH
6.0-8.5
anion traces
chloride (Cl-): ≤0.001%, phosphate (PO43-): ≤0.002%, sulfate (SO42-): ≤0.005%
cation traces
Ca: ≤0.005%, Fe: ≤0.001%, NH4+: ≤0.002%, heavy metals: ≤5 ppm (by ICP)
SMILES string
O.O.O.O.[Na+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O
InChI
1S/C4H6O6.K.Na.4H2O/c5-1(3(7)8)2(6)4(9)10;;;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;4*1H2/q;2*+1;;;;/p-2/t1-,2-;;;;;;/m1....../s1
InChI key
VZOPRCCTKLAGPN-ZFJVMAEJSA-L
General description
Application
1 of 1
This Item | |||
|---|---|---|---|
| form powder or crystals | form crystalline | form solid | form solid |
| assay 99%, 99.0-102.0% (ACS specification) | assay ≥99% | assay 99.0-101.0% (calc. on H2O free substance) | assay ≥99.5% (NT) |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| grade ACS reagent | grade - | grade - | grade - |
| impurities ≤0.005% insolubles | impurities - | impurities acidity or alkalinity, in accordance, residual solvent, complies, ≤0.001% heavy metals (as Pb), ≤0.003% total nitrogen (N), ≤0.004% ammonium (NH4), ≤0.004% free alkali (as NaOH), ≤0.0075% free acid (as C4H6O6), 24-26% water (Karl Fischer) | impurities insoluble matter, passes filter test, ≤0.002% total nitrogen (N) |
| pH 6.0-8.5 | pH - | pH 6.5-8.5 (20 °C, 1%) | pH 7.0-8.5 (25 °C, 1 M in H2O) |
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Storage Class
11 - Combustible Solids
wgk
WGK 1
ppe
Eyeshields, Gloves, type N95 (US)
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| 217255-2.5KG | 04061838774835 |
| 217255-12KG | 04061833482025 |
| 217255-100G | 04061835554560 |
| 217255-500G | 04061835554577 |
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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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