- p-Xylylenediamine
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- $62.00 / 25g
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2025-11-14
- CAS:539-48-0
- Min. Order: 25g
- Purity: 0.97
- Supply Ability: 25kg
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| | 1,4-Bis(aminomethyl)benzene Basic information |
| Product Name: | 1,4-Bis(aminomethyl)benzene | | Synonyms: | 1,4-BIS(AMINOMETHYL)-BENZENE;1,4-BIS(AMINOMETHYL)XYLENE;P-XYLYLENE-ALPHA,ALPHA'-DIAMINE;P-XYLENE DIAMINE;RARECHEM AL BW 0024;1,4-Benzenedimethanamine;1,4-Bis-aminomethylbenzen;4-(Aminomethyl)benzylamine | | CAS: | 539-48-0 | | MF: | C8H12N2 | | MW: | 136.19 | | EINECS: | 208-719-3 | | Product Categories: | | | Mol File: | 539-48-0.mol |  |
| | 1,4-Bis(aminomethyl)benzene Chemical Properties |
| Melting point | 60-63 °C(lit.) | | Boiling point | 230 °C10 mm Hg(lit.) | | density | 0.9458 (rough estimate) | | vapor pressure | 0.26Pa at 25℃ | | refractive index | 1.6210 (estimate) | | Fp | 134°C | | storage temp. | Store below +30°C. | | pka | 9.46±0.10(Predicted) | | form | powder to lump | | color | White to Light yellow | | Water Solubility | Soluble in water. | | Sensitive | Air Sensitive | | BRN | 2206190 | | LogP | -0.25 at 25℃ | | CAS DataBase Reference | 539-48-0(CAS DataBase Reference) | | NIST Chemistry Reference | p-Xylylenediamine(539-48-0) | | EPA Substance Registry System | 1,4-Benzenedimethanamine (539-48-0) |
| Hazard Codes | C | | Risk Statements | 34 | | Safety Statements | 26-36/37/39-45 | | RIDADR | UN 3259 8/PG 2 | | WGK Germany | 3 | | RTECS | PF9000000 | | F | 2-10 | | TSCA | Yes | | HS Code | 2921 59 90 | | HazardClass | 8 | | PackingGroup | II |
| | 1,4-Bis(aminomethyl)benzene Usage And Synthesis |
| Uses | p-Xylylenediamine is | | Flammability and Explosibility | Not classified | | Synthesis | Example 5: Hydrogenation of terephthalonitrile
1. 3.2 g of terephthalonitrile, 10.4 g of homotrimethylbenzene, 10.0 g of liquid ammonia, and 2.0 g of Pd-alumina pellets (manufactured by NE Chemcat Corporation; Pd content = 5% by weight) were added to a 100 ml autoclave.
2. the internal pressure was increased to 4.9 MPa using hydrogen.
3. The autoclave was shaken at 50 °C until the pressure no longer changed.
4. Upon completion of the reaction, the reaction product solution was analyzed and showed 94.8% conversion of terephthalonitrile, 88.8% yield of 4-cyanobenzylamine and 5.8% yield of p-phenylenediamine.
5. The isolated reaction solution was added to another 100 ml autoclave along with 10.0 g of liquid ammonia and 2.0 g of Catalyst A. The reaction solution was then added to another 100 ml autoclave.
6. The internal pressure was raised to 4.9 MPa using hydrogen again.
7. The autoclave was shaken at 50°C until the pressure no longer changed.
8. Upon completion of the reaction, the reaction product solution was analyzed and showed a conversion of 100 mol% for terephthalonitrile, a yield of 0.2 mol% for 4-cyanobenzylamine, and a yield of 92.1 mol% for p-xylene diamine. | | References | [1] Patent: EP1449825, 2004, A1. Location in patent: Page 5
[2] Patent: EP1449825, 2004, A1. Location in patent: Page 5 |
| | 1,4-Bis(aminomethyl)benzene Preparation Products And Raw materials |
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