???????
??????? ??
???
125 °C (dec.)(lit.)
?? ?
224.08°C (rough estimate)
??
1.34
???
1.4610 (estimate)
???
100 °C
?? ??
2-8°C
??? ??
powder to crystal
?? ?? (pKa)
12.14±0.46(Predicted)
??
???? ?? ??
???
150g/L
Merck
14,6968
BRN
1811870
??? ?? ??
??
InChI
1S/C3H8N2O3/c6-1-4-3(8)5-2-7/h6-7H,1-2H2,(H2,4,5,8)
InChIKey
QUBQYFYWUJJAAK-UHFFFAOYSA-N
SMILES
OCNC(=O)NCO
LogP
-2.610 (est)
CAS ??????
140-95-4(CAS DataBase Reference)
NIST
Dimethanolurea(140-95-4)
EPA
Dimethylolurea (140-95-4)
??
?? ? ?? ??
?? ? ???? ?? (GHS)
??? ??
T
?? ???? ??
45
?????
24/25-45-53
WGK ??
3
RTECS ??
YS2716350
TSCA
TSCA listed
HS ??
29241990
???? ???
13 - Non Combustible Solids
Hazard Classifications
Eye Irrit. 2
???? ??
KE-03227
????(GHS):
?? ?:
Warning
??·?? ??:
??
??·?? ??
?? ??
??
?? ?
?? ??
P- ??
H319 ?? ?? ??? ???
?? ? ?? ?? ??? ??
?? 2A
??
P264, P280, P305+P351+P338,P337+P313P
??????:
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P337+P313 ?? ?? ??? ???? ???? ??· ??? ????.
NFPA 704
??????? C??? ??, ??, ??
??? ??
white powder
??
In the textile industry in cotton crease- and shrink-proofing, finishing, drying, sizing; in tanning; pesticides; in photographic developers.
?? ??
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.
Purification Methods
Crystallise it from aqueous 75% EtOH. [Beilstein 3 IV 107.]
??????? ?? ?? ? ???
???
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???( 267)?? ??
Americas 1
Belgium 2
China 196
Europe 2
Germany 8
India 11
Japan 6
Switzerland 2
The Netherlands 2
United Kingdom 11
United States 26
Global 267
???
??
???
??
?? ?
??
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??????? ?? ??:
???(???????)????? ????? ??? ??-?????? ?????? ?? ??????? ?????? ???? ????? ??????????????? 1,3,4,6-?????(?????)????? DMDM ????? ???????
UREA-13C
1,3-BIS(METHOXYMETHYL)UREA
DIMETHYLOL ETHYLENE UREA
Eterobarb
4,5-dihydroxy-1,3-dimethylimidazolidin-2-one
Hydroxymethyl
4,5-DIHYDROXYTETRAHYDRO-2H-IMIDAZOL-2-ONE
1,3,4,6-TETRAKIS(BUTOXYMETHYL)GLYCOLURIL, TECH.
