Dimethyloldihydroxyethylene urea

Structural formula
General
Surname	Dimethyloldihydroxyethylene urea
other names	1,3-bis (hydroxymethyl) -4,5-dihydroxyimidazolidin-2-one 4,5-dihydroxy-1,3-bis (hydroxymethyl) -2-imidazolidinone DMDHEU
Molecular formula	C 5 H 10 N 2 O 5
Brief description	white solid
External identifiers / databases
CAS number 1854-26-8 EC number 217-451-6 ECHA InfoCard 100.015.865 PubChem 15824 Wikidata Q40851908
properties
Molar mass	178.17 g mol −1
Physical state	firmly
density	1.36 g cm −3
Melting point	−35 ° C
boiling point	106 ° C
Vapor pressure	26 hPa (20 ° C)
solubility	miscible with water
safety instructions
GHS hazard labeling no classification available
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions .

Dimethyloldihydroxyethyleneurea is a chemical compound from the group of carboxamides .

Extraction and presentation

Dimethyloldihydroxyethyleneurea can be obtained from urea , glyoxal and formaldehyde .

properties

Dimethyloldihydroxyethyleneurea is a crystalline white solid that is miscible with water.

use

Dimethyloldihydroxyethyleneurea is used for the easy-care and wrinkle-free treatment of cotton and cotton polyester fabrics. A crosslinking takes place between the hydroxyl groups of the cellulose and the dimethyloldihydroxyethylene urea.

safety instructions

In addition to formaldehyde, glyoxal, which is also sensitizing, can be released from dimethyloldihydroxyethylene urea. Formaldehyde could be detected both in dimethyloldihydroxyethylene urea solutions and in tissues treated with them. The cause of the formaldehyde contamination in the dimethyloldihydroxyethyleneurea production is unconverted formaldehyde and formaldehyde, which is formed after the tissue treatment through hydrolysis of free N-CH ~ OH groups of the dimethyloldihydroxyethylene urea. The formaldehyde release can be between 35 and 570 µg / m ² tissue / day. The formaldehyde release is pH-dependent. The lowest release was observed at a pH between 3 and 7.

Individual evidence

1. ↑ ^{a b c d e f g h} Entry on dimethyloldihydroxyethyleneurea in the GESTIS substance database of the IFA , accessed on September 24, 2017(JavaScript required) .
2. ↑ This substance has either not yet been classified with regard to its hazardousness or a reliable and citable source has not yet been found.
3. ↑ ^{a b c} Toxicological assessment of dimethyloldihydroxyethylene urea (PDF) from the trade association for raw materials and chemical industry (BG RCI), accessed on September 24, 2017.
4. ↑ Dimethyloldihydroxyethyleneurea (MAK Value Documentation in German language, 2001), doi : 10.1002 / 3527600418.mb185426d0032