Dimethylolurea Chemical Properties

Melting point:

125 °C (dec.)(lit.)

Boiling point:

224.08°C (rough estimate)

Density 

1.34

refractive index 

1.4610 (estimate)

Flash point:

100 °C

storage temp. 

2-8°C

pka

12.14±0.46(Predicted)

form 

powder to crystal

color 

White to Almost white

Water Solubility 

150 g/L

Merck 

14,6968

BRN 

1811870

InChIKey

QUBQYFYWUJJAAK-UHFFFAOYSA-N

LogP

-2.610 (est)

CAS DataBase Reference

140-95-4(CAS DataBase Reference)

NIST Chemistry Reference

Dimethanolurea(140-95-4)

EPA Substance Registry System

Dimethylolurea (140-95-4)

Safety Information

Hazard Codes 

T

Risk Statements 

45

Safety Statements 

24/25-45-53

WGK Germany 

3

RTECS 

YS2716350

TSCA 

Yes

HS Code 

29241990

MSDS

• Language:English Provider:SigmaAldrich
• Language:English Provider:ACROS
• Language:English Provider:ALFA

Dimethylolurea Usage And Synthesis

Chemical Properties

white powder

Uses

In the textile industry in cotton crease- and shrink-proofing, finishing, drying, sizing; in tanning; pesticides; in photographic developers.

Uses

1,3-Bis(hydroxymethyl)urea is used in preparation method of insulating waterborne polyurethane dispersion coating for electronic and electrical components.

Definition

ChEBI: Oxymethurea is a member of ureas.

Production Methods

Dimethylolurea is produced industrially by the addition of 2 mol of formaldehyde per mole of urea in a stirred vessel. The solution is neutralized with triethanolamine. Urea is added with cooling, and the temperature must not exceed 40 ℃ in this slightly exothermic reaction. After a few hours, the reaction mixture is cooled to room temperature and dihydroxymethylurea crystals form upon cooling. The product is dried in a spray-drying tower.

Flammability and Explosibility

Not classified

Purification Methods

Crystallise it from aqueous 75% EtOH. [Beilstein 3 IV 107.]

Dimethylolurea(140-95-4)Related Product Information

• Methylurea
• UREA-13C
• Urea formaldehyde
• Diazolidinyl Urea
• Tris(hydroxymethyl)nitromethane
• (Hydroxymethyl)urea
• 4,5-dihydroxy-1,3-dimethylimidazolidin-2-one
• 4,5-dihydroxy-1,3-bis(hydroxymethyl)imidazolidin-2-one
• 1,3,4,6-Tetrakis(methoxymethyl)glycoluril
• Dimethyloldimethyl hydantoin
• DIMETHYLOL ETHYLENE UREA
• Eterobarb
• Tetramethylol acetylenediurea
• 1,3-BIS(METHOXYMETHYL)UREA
• Dimethylolurea
• Hydroxymethyl
• 4,5-DIHYDROXYTETRAHYDRO-2H-IMIDAZOL-2-ONE
• 1,3,4,6-TETRAKIS(BUTOXYMETHYL)GLYCOLURIL, TECH.