Hexamethylolmelamine
- CAS No.
- 39863-30-4
- Chemical Name:
- Hexamethylolmelamine
- Synonyms
- Hexamethylolmelamine;hexamethylol melamin resin;1,3,5-Triazine-2,4,6-triamine, N2,N2,N4,N4,N6,N6-hexamethoxy-;2-N,2-N,4-N,4-N,6-N,6-N-hexamethoxy-1,3,5-triazine-2,4,6-triamine
- CBNumber:
- CB0947118
- Molecular Formula:
- C9H18N6O6
- Molecular Weight:
- 306.28
- MOL File:
- 39863-30-4.mol
- MSDS File:
- SDS
| Boiling point | 349.8±25.0 °C(Predicted) |
|---|---|
| Density | 1.384±0.06 g/cm3(Predicted) |
| pka | 5.71±0.10(Predicted) |
| CAS DataBase Reference | 39863-30-4 |
Hexamethylolmelamine Chemical Properties,Uses,Production
Uses
Hexamethylolmelamine can further condense in the presence of an acid catalyst; ether linkages can also form (see “Urea Formaldehyde”). A wide variety of resins can be obtained by careful selection of pH, reaction temperature, reactant ratio, amino monomer, and extent of condensation. Liquid coating resins are prepared by reacting methanol or butanol with the initial methylolated products. These can be used to produce hard, solvent-resistant coatings by heating with a variety of hydroxy, carboxyl, and amide functional polymers to produce a cross-linked film.
Preparation
To a resin flask equipped with a mechanical stirrer and condenser are added 37.8 gm (0.3 mole) of melamine and 195 gm of 37% (2.4 moles) formaldehyde solution. The pH of the mixture is adjusted with caustic to pH 8.3. The reaction mixture is heated on a water bath with stirring at 50°C for about 70-80 min, at which time all the melamine has gone into solution. On cooling the product separates as a thick white precipitate and is filtered to afford the monohydrate (after drying at 50°C). Yield: 62.5-69.0 gm (68-75%), m.p. 147°-153°C.
Preparation of Hexamethylolmelamine
NOTE: Approximately one-third of the product melts at 120°-140°C.
This reaction can also be carried out at room temperature over a two week period to give a quantitative yield, m.p. 150°-154°C. Infrared absorption data (KBr) are (microns): 2.93 (s), 3.37 (w), 6.40 (s), 6.65 (m), 6.90 (w), 7.20 (m), 7.50 (w), 7.82 (s), 8.35 (w), 10.10 (s), 10.90 (w), 11.45 (w), 12.30 (w) (where s = strong, m = medium and w = weak).
Hexamethylolmelamine Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | China | 21675 | 55 | Inquiry |
| LEAP CHEM CO., LTD. | +86-852-30606658 | China | 24738 | 58 | Inquiry |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503259 +86-19930503259 | China | 18444 | 58 | Inquiry |
| Hebei Fengmu Trading Co., Ltd. | +8613393234347 | China | 2988 | 58 | Inquiry |
| Hubei Shishun Biotechnology Co. Ltd | 027-59223025 15107168801 | China | 9943 | 58 | Inquiry |
| Hubei Wande Chemical Co., Ltd | 027-59210159 15377098680 | China | 9976 | 58 | Inquiry |
| Hubei Tuobang Chemical Co., Ltd. | 027-59106185 13986192185 | China | 9977 | 58 | Inquiry |
| Hubei DAHAO Chemical Co., Ltd. | 027-59106191 13986034860 | China | 9903 | 58 | Inquiry |
| Hubei Jusheng Technology Co.,Ltd | 027-59599241 18871490274 | China | 9956 | 58 | Inquiry |
| Hubei Guangao Biotechnology Co., Ltd | 027-027-59223056 18162699093 | China | 9928 | 58 | Inquiry |