Cov khoom
| Boron | |
| Qhov tshwm sim | Dub-xim av |
| Phase ntawm STP | Khoom |
| Melting point | 2349 K (2076 ° C, 3769 ° F) |
| Boiling point | 4200 K (3927 ° C, 7101 ° F) |
| Ceev thaum ua kua (ntawm mp) | 2.08g / cm3 |
| Kub ntawm fusion | 50.2 kJ / mol |
| Kub ntawm vaporization | 508 kJ / mol |
| Molar tshav kub muaj peev xwm | 11.087 J/(mol·K) |
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Boron hmoov
Boron, cov khoom siv tshuaj nrog lub cim B thiab atomic tooj 5, yog xim dub / xim av tawv tawv amorphous hmoov. Nws yog reactive heev thiab soluble nyob rau hauv concentrated nitric thiab sulfuric acids tab sis insoluble nyob rau hauv dej, cawv thiab ether. Nws muaj peev xwm nqus neutro siab.
UrbanMines tshwj xeeb hauv kev tsim cov purity Boron Powder nrog qhov tsawg tshaj plaws qhov nruab nrab qhov ntau thiab tsawg. Peb tus qauv hmoov particle qhov nruab nrab ntawm qhov ntau ntawm - 300 mesh, 1 microns thiab 50 ~ 80nm. Peb kuj tuaj yeem muab ntau yam khoom siv hauv nanoscale ntau. Lwm cov duab muaj nyob ntawm kev thov.