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O0376 Sigma-Aldrich

Oxalic acid dihydrate

ReagentPlus®, ≥99.0% (GC)

Synonym: Ethanedioic acid dihydrate

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Properties

Related Categories Acids, Acids & Bases, Building Blocks, C1 to C5, Carbonyl Compounds,
grade   ReagentPlus®
vapor density   4.4 (vs air)
vapor pressure   <0.01 mmHg ( 20 °C)
InChI Key   GEVPUGOOGXGPIO-UHFFFAOYSA-N
assay   ≥99.0% (GC)
mp   104-106 °C(lit.)

Description

Packaging

1, 3 kg in poly bottle

10 mg in glass bottle

100, 500 g in poly bottle

Application

Oxalic acid dihydrate may be used:
• 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.

General description

Oxalic acid dihydrate (OAD) crystals are reported to be monoclinic with P21/n space group. The electron density of OAD has been obtained using X-ray diffraction studies under high resolution.

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Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
1

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

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Peer-Reviewed Papers
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References

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