4,5-dihydroxy-2-imidazolidinone
formaldehyd
dimethyloldihydroxyethylene urea
Conditions | Yield |
---|---|
With disodium hydrogenphosphate; sodium dihydrogenphosphate; 2-(N,N-dimethylamino)ethanol at 50℃; for 4h; Reagent/catalyst; Temperature; |
Empirical Formula: C5H10N2O5
Molecular Weight: 178.1433
EINECS: 217-451-6
Index of Refraction: 1.669
Density: 1.809 g/cm3
Flash Point: 232.3 °C
Enthalpy of Vaporization: 83.17 kJ/mol
Boiling Point: 460.4 °C at 760 mmHg
Vapour Pressure: 2.06E-10 mmHg at 25 °C
Solubility: Water soluble
Appearance: Clear pale yellow 40% aqueous solution
Product Categories: Textile finishing agents;Textile dyeing and finishing auxiliaries;Chemical additives
Structure of Dimethyloldihydroxyethyleneurea (CAS NO.1854-26-8):
IUPAC Name of Dimethyloldihydroxyethyleneurea (CAS NO.1854-26-8): 4,5-Dihydroxy-1,3-bis(hydroxymethyl)imidazolidin-2-one
Dimethyloldihydroxyethyleneurea (CAS NO.1854-26-8) is used as shaping durable fabric finishing agent, having good storage stability, fine properties of washing and hydrolysis. And it is suitable for fabric finishing colors. It is mainly used for polyester / cotton blended fabric finishing and has good keeping of its elasticity.
First, take 490 kg of Glyoxal (100% total) into the reactor,keep stirring and adding 20% to 25% Na2CO3 aqueous solution. Adjust pH value to 5 ~ 5.5. Adding Urea , and stirring for being dissolved, and then gradually warming to about 35 °C, then let automatic temperature to 45 °C for the reaction 1 h, then keeping it at 50 °C for 3 h, at last cooling it to 40 °C for backup. Scecond, adding 37% of the 1 350 kg of Formaldehyde in aqueous solution into the above-mentioned compounds, and using 20% Na2CO3 to adjust the pH value to 8 ~ 8.5. At 50 °C having insulation 3 h, and then being cooled to room temperature. Using acid for adjusting to 6 to 6.5. Now, you will get the product: Dimethyloldihydroxyethyleneurea (CAS NO.1854-26-8).
1. | skn-rbt 500 mg/24H SEV | 28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,269. | ||
2. | eye-rbt 500 mg/24H MLD | 28ZPAK Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,269. | ||
3. | mmo-sat 3333 µg/plate | ENMUDM Environmental Mutagenesis. 9 (Suppl 9)(1987),1. | ||
4. | slt-dmg-orl 60 ppb | EMMUEG Environmental and Molecular Mutagenesis. 23 (1994),51. |
Reported in EPA TSCA Inventory.
An eye and severe skin irritant. Mutation data reported. When heated to decomposition it emits toxic fumes of NOx.
Dimethyloldihydroxyethyleneurea ,its cas register number is 1854-26-8. It also can be called 4,5-Dihydroxy-1,3-bis(hydroxymethyl)-2-imidazolidinone ; and 2-Imidazolidinone, 4,5-dihydroxy-1,3-bis(hydroxymethyl)- .
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