Maleimide

Structural formula
General
Surname	Maleimide
other names	2,5-pyrrolidinedione Maleimide Maleimide Maleimide 1 H -pyrrole-2,5-dione
Molecular formula	C 4 H 3 NO 2
Brief description	beige crystals
External identifiers / databases
CAS number 541-59-3 EC number 208-787-4 ECHA InfoCard 100.007.990 PubChem 10935 Wikidata Q6743002
properties
Molar mass	97.07 g mol −1
Physical state	firmly
density	1.2493 g cm −3
Melting point	90-93 ° C
solubility	soluble in water soluble in alcohol and ether
safety instructions
GHS labeling of hazardous substances danger H and P phrases H: 300-314-317 P: 280-301 + 330 + 331-302 + 352-305 + 351 + 338-308 + 310
Toxicological data	5–25 mg kg −1 ( LD 50 ,  rat ,  oral )
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Maleimide is a chemical compound . It is the imide of maleic acid and thus the simplest representative of the maleimide group .

Extraction and presentation

Maleimide is usually prepared by reaction of maleic anhydride with ammonia and subsequent elimination of water .

properties

Maleimide is a flammable, hardly flammable, crystalline, beige solid that is soluble in water.

use

Maleimide and substituted derivatives serve both as photoinitiators and as monomeric starting materials for anionic or radical homopolymerizations and copolymerizations . Maleimide is also used as a stabilizer in cooling lubricants.

Individual evidence

1. ↑ ^{a b c d e f g} Entry on maleinimide in the GESTIS substance database of the IFA , accessed on January 8, 2018(JavaScript required) .
2. ↑ ^{a b c} Entry on maleimide. In: Römpp Online . Georg Thieme Verlag, accessed on June 28, 2016.
3. ↑ Maleimide data sheet (PDF) from Fisher Scientific , accessed February 13, 2014.
4. ↑ Werner Baumann, Bettina Herberg-Liedtke: Chemicals in metal processing: data and facts on environmental protection . Springer-Verlag, 2013, ISBN 978-3-642-61004-2 ( books.google.com ).