Sigma-Aldrich 128465 Glyoxal solution 40 wt. % in H2O 1 kg
|
Sigma-Aldrich 128465 Glyoxal solution 40 wt. % in H2O 1 kg |
|
Synonym(s): Ethanedial, Oxalaldehyde
Linear Formula: OHCCHO
CAS Number: 107-22-2
Molecular Weight: 58.04
Beilstein: 1732463
MDL number: MFCD00006957
PubChem Substance ID: 57647035
NACRES: NA.21
SDS İçin Resmi Tıklayınız... |
|
PROPERTIES
vapor density >1 (vs air)
Quality Level 200
vapor pressure 18 mmHg (20 °C)
form liquid
autoignition temp. 545 °F
concentration 40 wt. % in H2O
refractive index n20/D 1.4087
solubility water: soluble(lit.)
density 1.265 g/mL at 25 °C
SMILES string [H]C(=O)C([H])=O
InChI 1S/C2H2O2/c3-1-2-4/h1-2H
InChI key LEQAOMBKQFMDFZ-UHFFFAOYSA-N
DESCRIPTION
General description
The product is 40wt.% solution of glyoxal in water. Glyoxal is a linear aliphatic dialdehyde containing two aldehyde groups. It participates in the synthesis of glyoxylic acid. It is highly reactive in nature. It can be prepared by oxidizing ethanol or acetaldehyde with nitric acid. It is widely employed in textile and paper industry.
Application
Glyoxal solution has been used as a crosslinking agent during the synthesis of DNA-containing nanoparticles in a study. It has been used as derivatizing reagent, in the precolumn fluorescence derivatization of N-terminal tryptophan containing peptides which can be separated via high performance liquid chromatography. It may also be used in the synthesis of glyoxal bis(4-phenyl-3-thiosemicarbazones)solution, which can be used in the spectrophotometric determination of palladium in catalysts.
Packaging
5 gr in glass bottle
100 gr in poly bottle
1, 3 kg in poly bottle
22, 50 kg in poly drum
Other Notes
This form of glyoxal is composed of 3 moles of glyoxal and 2 moles of water in a relatively stable configuration.
Caution
May precipitate on storage; redissolve at 50-60 °C. |