247537
Oxalic acid dihydrate
ACS reagent, ≥99%
Synonym(s):
Ethanedioic acid dihydrate
About This Item
Recommended Products
grade
ACS reagent
Quality Level
vapor density
4.4 (vs air)
vapor pressure
<0.01 mmHg ( 20 °C)
assay
≥99%
99.5-102.5% (ACS specification)
form
solid
impurities
H2SO4, passes test (darkened)
≤0.001% N compounds
≤0.005% insolubles
ign. residue
≤0.01%
mp
104-106 °C (lit.)
anion traces
chloride (Cl-): ≤0.002%
sulfate (SO42-): ≤0.005%
cation traces
Ca: ≤0.001%
Fe: ≤2 ppm
heavy metals: ≤5 ppm (by ICP-OES)
SMILES string
[H]O[H].[H]O[H].OC(=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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General description
Application
- As a catalyst in the preparation of tetrahydroquinoline derivatives via imino Diels-Alder reaction.
- As a homogeneous catalyst in the preparation of highly functionalized piperidines via multi-component reaction.
- As an oxidant for the formation of triazolinediones from corresponding urazoles and bisurazoles via oxidation.
- In the transformation of thiols to nitrosothiols by reacting with sodium nitrite.
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1
wgk_germany
WGK 1
ppe
dust mask type N95 (US), Eyeshields, Gloves
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