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128465

Glyoxal solution

Name: Glyoxal solution
Brand: SIAL

40 wt. % in H₂O, solution

Synonym(s):

Ethanedial, Oxalaldehyde

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About This Item

Linear Formula:

OHCCHO

CAS Number:

107-22-2

Molecular Weight:

58.04

NACRES:

NA.21

PubChem Substance ID:

57647035

UNSPSC Code:

12352114

MDL number:

MFCD00006957

Beilstein/REAXYS Number:

1732463

Form:

liquid

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Properties

Product Name

Glyoxal solution, 40 wt. % in H₂O

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

functional group

aldehyde

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.

Other Notes

This form of glyoxal is composed of 3 moles of glyoxal and 2 moles of water in a relatively stable configuration.

Disclaimer

May precipitate on storage; redissolve at 50-60 °C.

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target_organs

Respiratory system

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

pictograms

GHS08,GHS07

signalword

Warning

hcodes

H315,H317,H319,H335,H341

pcodes

P202 - P261 - P280 - P302 + P352 - P305 + P351 + P338 - P308 + P313

Hazard Classifications

Eye Irrit. 2 - Muta. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Storage Class

10 - Combustible liquids

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Eagleson M.

Concise Encyclopedia Chemistry, 312-312 (1994)