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
1.00495
Oxalsäuredihydrat
for analysis EMSURE® ACS,ISO,Reag. Ph Eur
Synonym(e):
Oxalsäuredihydrat, Ethandisäure
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€ 56,30
€ 95,00
€ 161,00
€ 2.740,00
Über diesen Artikel
Fortfahren mit
grade
ACS reagent
Quality Level
agency
reag. ISO, reag. Ph. Eur.
vapor pressure
0.000312 hPa ( 25 °C)
product line
EMSURE®
assay
99.5-102.0% (manganometric)
form
solid
potency
375 mg/kg LD50, oral (Rat)
impurities
≤50 ppm Insoluble matter
ign. residue
≤100 ppm (as sulfate)
pH
1.5 (10 g/L in H2O)
bp
149-160 °C/1013 hPa (decomposition)
mp
98-100 °C
transition temp
flash point 157 °C (decomposition)
solubility
>100 g/L
density
1.65 g/cm3 at 20 °C
bulk density
813 kg/m3
anion traces
chloride (Cl-): ≤5 ppm, sulfate (SO42-): ≤50 ppm
cation traces
Ca: ≤10 ppm, Fe: ≤2 ppm, N: ≤10 ppm, heavy metals: ≤5 ppm, heavy metals (as Pb): ≤5 ppm
storage temp.
2-30°C
SMILES string
[O+H3].[O+H3].[O-]C(=O)C(=O)[O-]
InChI
1S/C2H2O4.2H2O/c3-1(4)2(5)6;;/h(H,3,4)(H,5,6);2*1H2
InChI key
GEVPUGOOGXGPIO-UHFFFAOYSA-N
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Verwandte Kategorien
1 of 4
Dieser Artikel | |||
|---|---|---|---|
| grade ACS reagent | grade ACS reagent, puriss. p.a. | grade - | grade - |
| assay 99.5-102.0% (manganometric) | assay ≥99.5% (manganometric) | assay ≥99.0% (GC) | assay ≥99% (manganometric) |
| Quality Level 300 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| agency reag. ISO, reag. Ph. Eur. | agency USP/NF, reag. ISO, reag. Ph. Eur. | agency - | agency - |
| form solid | form crystals | form - | form solid |
| pH 1.5 (10 g/L in H2O) | pH - | pH - | pH 1.5 (10 g/L in H2O) |
Application
- In Situ Investigation of a Self-Accelerated Cocrystal Formation by Grinding Pyrazinamide with Oxalic Acid: In dieser Studie wird die In-situ-Bildung von Co-Kristallen aus Pyrazinamid und Oxalsäuredihydrat untersucht, wobei der selbstbeschleunigende Ablauf des Prozesses und seine Bedeutung in der pharmazeutischen Entwicklung hervorgehoben werden (Kulla et al., 2016).
- Deuterium MAS NMR studies of dynamics on multiple timescales: histidine and oxalic acid: In diesem Artikel wird die Dynamik von Oxalsäuredihydrat und Histidin unter Verwendung von Magic-Angle-Spinning-Kernspinresonanzspektroskopie mit Deuterium untersucht. Die Autoren bieten Einblicke in molekulare Bewegungen auf verschiedenen Zeitebenen (Chan-Huot et al., 2015).
Analysis Note
Unlösliche Anteile: ≤ 50 ppm
Chlorid (Cl): ≤ 5 ppm
Sulfat (SO₄): ≤ 50 ppm
Gesamtstickstoff (N): ≤ 10 ppm
Schwermetalle (als Pb): ≤ 5 ppm
Schwermetalle (ACS): ≤ 5 ppm
Ca (Calcium): ≤ 10 ppm
Fe (Eisen): ≤ 2 ppm
Leicht karbonisierbare Substanz: entspricht
Rückstand bei Entzündung (als Sulfat): ≤ 100 ppm
Entspricht ACS, ISO, Reag. Ph. Eur.
Legal Information
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1
Lagerklasse
11 - Combustible Solids
wgk
WGK 1
Analysenzertifikate (COA)
Suchen Sie nach Analysenzertifikate (COA), indem Sie die Lot-/Chargennummer des Produkts eingeben. Lot- und Chargennummern sind auf dem Produktetikett hinter den Wörtern ‘Lot’ oder ‘Batch’ (Lot oder Charge) zu finden.
Besitzen Sie dieses Produkt bereits?
In der Dokumentenbibliothek finden Sie die Dokumentation zu den Produkten, die Sie kürzlich erworben haben.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 1004950500 | 04022536006901 |
| 1004950100 | 04022536006895 |
| 1004951000 | 04022536006925 |
| 1004959025 | 04022536006956 |
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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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