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
75688
Oxalic acid
anhydrous grade, ≥99.0% (RT), crystals, puriss. p.a.
Synonym(s):
Ethanedioic acid
Select a Size
| Size/SKU | Availability | Price |
|---|---|---|
50 g | Please contact Customer Service for Availability | CZK 1,630.00 |
250 g | Please contact Customer Service for Availability | CZK 2,240.00 |
About This Item
Product Name
Oxalic acid, puriss. p.a., anhydrous, ≥99.0% (RT)
Quality Segment
vapor density
4.4 (vs air)
vapor pressure
<0.01 mmHg ( 20 °C)
grade
anhydrous, puriss. p.a.
assay
≥99.0% (RT)
form
crystals
impurities
≤0.001% total nitrogen (N), ≤1% water
ign. residue
≤0.01% (as SO4)
mp
189.5 °C (dec.) (lit.)
anion traces
chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤350 mg/kg
cation traces
Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤35 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
functional group
carboxylic acid
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
Gene Information
human ... SRC(6714)
General description
Application
- ammonium oxalate
- calcium oxalate
- chlorine dioxide (ClO2)
- potassium hydrogenoxalate
1 of 1
This Item | |||
|---|---|---|---|
| grade anhydrous, puriss. p.a. | grade - | grade - | grade certified reference material, pharmaceutical secondary standard |
| assay ≥99.0% (RT) | assay ≥99% | assay 98% | assay - |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 300 |
| form crystals | form powder or crystals | form powder or crystals | form - |
| vapor density 4.4 (vs air) | vapor density 4.4 (vs air) | vapor density 4.4 (vs air) | vapor density 4.4 (vs air) |
| anion traces chloride (Cl-): ≤50 mg/kg, sulfate (SO42-): ≤350 mg/kg | anion traces - | anion traces - | anion traces - |
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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
ppe
dust mask type N95 (US), Eyeshields, Gloves
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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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