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
41706
Oxalic acid
analytical standard
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| Size/SKU | Availability | Price |
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About This Item
grade
analytical standard
Quality Segment
vapor density
4.4 (vs air)
vapor pressure
<0.01 mmHg ( 20 °C)
assay
98.0-102.0% (redox titration)
shelf life
limited shelf life, expiry date on the label
mp
189.5 °C (dec.) (lit.)
application(s)
cleaning products
cosmetics
food and beverages
personal care
format
neat
SMILES string
OC(=O)C(O)=O
InChI
1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6)
InChI key
MUBZPKHOEPUJKR-UHFFFAOYSA-N
General description
Oxalic acid is a low-molecular-weight organic acid that occurs naturally in several plants, fruits, vegetables, food and beverage products.
Application
1 of 1
This Item | |||
|---|---|---|---|
| grade analytical standard | grade certified reference material, pharmaceutical secondary standard | grade - | grade anhydrous, puriss. p.a. |
| application(s) cleaning products | application(s) pharmaceutical small molecule | application(s) - | application(s) - |
| format neat | format - | format - | format - |
| assay 98.0-102.0% (redox titration) | assay - | assay 98% | assay ≥99.0% (RT) |
| mp 189.5 °C (dec.) (lit.) | mp 189.5 °C (dec.) (lit.) | mp 189.5 °C (dec.) (lit.) | mp 189.5 °C (dec.) (lit.) |
| shelf life limited shelf life, expiry date on the label | shelf life - | shelf life - | shelf life - |
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signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1
Storage Class
11 - Combustible Solids
wgk
WGK 1
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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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