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
194131
Oxalic acid
98%
Synonym(s):
Ethanedioic acid
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InChI key
MUBZPKHOEPUJKR-UHFFFAOYSA-N
InChI
1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)
SMILES string
OC(=O)C(O)=O
vapor density
4.4 (vs air)
vapor pressure
<0.01 mmHg ( 20 °C)
assay
98%
form
powder or crystals
pH
(1.3 at 9 g/l)
mp
189.5 °C (dec.) (lit.)
solubility
water: soluble 108 g/L at 25 °C
density
1.65 g/cm3 at 18.5 °C
functional group
carboxylic acid
Quality Level
Gene Information
human ... SRC(6714)
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Related Categories
1 of 4
This Item | 241172 | 75688 | 23-0890 |
|---|---|---|---|
| assay 98% | assay ≥99% | assay ≥99.0% (RT) | assay ≥97.0% |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level - |
| form powder or crystals | form powder or crystals | form crystals | form crystalline |
| pH (1.3 at 9 g/l) | pH - | pH - | pH - |
| solubility water: soluble 108 g/L at 25 °C | solubility water: soluble ~108 g/L at 25 °C | solubility - | solubility water: 108 g/L at 25 °C |
| vapor density 4.4 (vs air) | vapor density 4.4 (vs air) | vapor density 4.4 (vs air) | vapor density 4.4 (vs air) |
Application
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1
Storage Class
11 - Combustible Solids
wgk
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Gloves
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How can I determine the shelf life / expiration / retest date of this product?
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What temperature should this item be stored and should it be stored away from light?
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This product may be stored at room temperature, tightly closed, in a dry place. While the material is not light sensitive, it is hygroscopic.
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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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