- Dimethylolurea
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- $30.00 / 1kg
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2024-03-26
- CAS:140-95-4
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: g，kg-tons, free sample is available
- Dimethylolurea
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- $8.00 / 25kg
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2024-01-04
- CAS:140-95-4
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 2000000
- Dimethylolurea
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- $0.00 / 25KG
-
2023-06-30
- CAS:140-95-4
- Min. Order: 1KG
- Purity: 99%
- Supply Ability: 50000KG/month
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| | Dimethylolurea Basic information |
| | Dimethylolurea Chemical Properties |
| Melting point | 125 °C (dec.)(lit.) | | Boiling point | 224.08°C (rough estimate) | | density | 1.34 | | refractive index | 1.4610 (estimate) | | Fp | 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) |
| Hazard Codes | T | | Risk Statements | 45 | | Safety Statements | 24/25-45-53 | | WGK Germany | 3 | | RTECS | YS2716350 | | TSCA | Yes | | HS Code | 29241990 |
| | Dimethylolurea Usage And Synthesis |
| Chemical Properties | white powder | | Uses | 1,3-Bis(hydroxymethyl)urea is used in preparation method of insulating waterborne polyurethane dispersion coating for electronic and electrical components. | | Uses | In the textile industry in cotton crease- and shrink-proofing, finishing, drying, sizing; in tanning; pesticides; in photographic developers. | | 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. | | Definition | ChEBI: Oxymethurea is a member of ureas. | | Flammability and Explosibility | Not classified | | Purification Methods | Crystallise it from aqueous 75% EtOH. [Beilstein 3 IV 107.] |
| | Dimethylolurea Preparation Products And Raw materials |
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