# Bor

SIMS Spektrum fon do Isotope

| Oainskuppe |
| --- |
|

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
|

|  |  |  |
| --- | --- | --- |
|     |  |     |
|     |     |  |     |     |     |     |     |     |
|     |     |  |     |     |     |     |     |     |
|     |     |     |  |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |
|     |     |     |  |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |
|     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |
|     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |     |

He 2s2 2p1
5
B
Periodensystem . . . . . . . . . . Klik ap sun litje Blok foar n uur Element |

 |
| Algemeen |
| Noome, Symbol, Oardnengstaal | Bor, B, 5 |
| Serie | Hoolichmetalle |
| Gruppe, Periode, Blok | 13, 2, p |
| Uutsjoon | swot |
| Massenandeel an ju Äidhülle | 1 · 10−3 % |
| Atomar |
| Atommasse | 10,811 u |
| Atomradius (bereekend) | 85 (87) pm |
| Kovalenten Radius | 82 pm |
| Elektronekonfiguration | He 2s2 2p1 |
| Elektrone pro Energieniveau | 2, 3 |
| 1. Ionisierungsenergie | 800,6 kJ/mol |
| 2. Ionisierungsenergie | 2427,1 kJ/mol |
| 3. Ionisierungsenergie | 3659,7 kJ/mol |
| Physikalisk |
| Aggregoattoustand | fest |
| Kristallstruktuur | rhomboedrisk |
| Tichte | 2,460 g/cm3 |
| Mohshädde | 9,3 |
| Smiltpunkt | 2349 K (2076 °C) |
| Sjoodepunkt | 4200 K (3927 °C) |
| Molar Volumen | 4,39 · 10−6 m3/mol |
| Ferdampengswaarmte | 489,7 kJ/mol |
| Smiltwaarmte | 50,2 kJ/mol |
| Dampdruk | 0,348 Pa bei 2573 K |
| Skalgauegaid | 16200 m/s bei 293,15 K |
| Spezifiske Waarmtekapazität | 1026 J/(kg · K) |
| Elektriske Laitfäiegaid | 1,0 · 10−4 S/m |
| Waarmtelaitfäiegaid | 27,4 W/(m · K) |
| Chemisk |
| Oxidationstoustande | 3 |
| Oxide (Basizität) | B2O3 (licht suur) |
| Normoalpotentioal |  |
| Elektronegativität | 2,04 (Pauling-Skala) |
| Isotope |
|

| Isotop | NH | t1/2 | ZM | ZE MeV | ZP |
| --- | --- | --- | --- | --- | --- |
| 8B |
{syn.}
 |  770 ms  | ε | 17,979 | 8Be |
| 9B |
{syn.}
 |  8,465 · 10−19 s  | p | 0,185 | 8Be |
| 10B |
19,9 %
 |  Stabil |
| 11B | **80,1** %
 |  Stabil |
| 12B |
{syn.}
 |  20,20 ms  | β- | 13,369 | 12C |
| 13B |
{syn.}
 |  17,36 ms  | β- | 13,437 | 13C |

 |
| NMR-Oainskuppe |
|

|   | Spin | γ in rad·T−1·s−1 | E | fL bei B = 4,7 T in MHz |
| --- | --- | --- | --- | --- |
| **10B** | 3 | 2,875 · 107 |  | 21,5 |
| **11B** | 3/2 | 8,584 · 107 |  | 64,2 |

 |
| Sicherhaidswaiwiesengen |
| Gefoarstofkänteekenge |
|

|  |
| --- |
|
 Xn Suundhaids- schoadelk |

 |
| R- und S-Sätze | R: Foarloage:R-Sätze |
| S: Foarloage:S-Sätze |
| Sowied muugelk un gebruukelk, wäide SI-Eenhaide ferwoand. Wan nit uurs fermäärkt, jäilde do anroate Doaten bie Standoardbedingengen. |

**Bor** of  **Borium** is n chemisk Element mäd Symbol B un Atomnummer 5. Dät is n swot Metalloid.

## Äntdäkkenge

Borferbiendengen wieren al in dät Oaler bekoand. Die Noome kumt fon dät Arabiske *Buraq* foar Borax, n Mineroal dät dät wichtichste Arst foar ju Borgewinnenge is. Borax is n Boroat, n Soalt fon Borsuur. Dät Element is deeruut nit so eenfach fräitoumoakjen, deeruum dät deerfoar stäärke Reduktore nöödich sunt, as Magnesium of Aluminium. Dät Element wuud deeruum eerste 1808 fon Sir Humphry Davy, Louis Gay-Lussac un Louis Jacques Thénard deerstoald. Ap disse Wiese wäd dät Bor oawers keetich moaked truch dät Metal. Truch Uutnunnerhoaljen fon fluchtige Halogeniden kon dät Element oawers mäd min Keete deerstoald wäide.

## Anweendenge

Borsuur wäd fuul anwoand in ju Textilindustrie. Borsilikoatgleese sunt technisk gjucht wichtich. In Fjuurwierk rakt Bietouföigenge fon dät Element in amorphe Foarm ne flugge gräine Faawe. Borferbiendengen wäide unnersoacht un anwoand in n breed Spektrum fon biochemiske Seeken, as sukkertruchläitende Membroane, Sensore foar Koolehydroate, Bekampenge fon Arthritis un in ju Neutronetherapie. 10B häd n grooten Wierkengstwäärssnit foar Neutronefang un wäd deeruum uk in ju Atomindustrie anwoand. Borane sunt wäil foarsloain as Raketenfjuurenge, deeruum dät bie dät Ferbaadenjen deerfon ne groote Masse Energie fräi wäd. Bor is fääre in gans skeene Foarm wichtich as "Keetegaid" (Dope) in Hoolichlaitere.

kristallin Bor