monomer boron / amorphous boron pauka CAS 7440-42-8
He nui nā allotropes o Boron. Ua kapa ʻia hoʻi ʻo Amorphous boron elemental a me monomer boron.
He pauka ʻeleʻele a he mau kristal ʻālohilohi hina paha, a he olaola kona mau waiwai kemika. He paʻa ia
ma lalo o ka ea a me ka mahana maʻamau. Hoʻopau ʻia ia i ka wā e hoʻomehana ʻia ai i 300℃ a puhi i 700℃, ʻO ka lapalapa
he ʻulaʻula ke ʻā, a he ʻōmaʻomaʻo ka lapalapa boron me ka vaporization trace. ʻAʻole hiki ke hoʻoheheʻe ʻia i ka wai, hydrochloric
waikawa, ethanol, a me ka ether. He mea hoʻoheheʻe ia i loko o ka hopena alkali i hoʻopaʻa ʻia a hoʻoheheʻe i ka hydrogen,
ka mea i hoʻomake ʻia i ka waikawa boric e ka waikawa nitric i hoʻopaʻa ʻia a me ka waikawa sulfuric i hoʻopaʻa ʻia. Ma ke kiʻekiʻe
nā mahana, hiki iā Boron ke launa pū me ka oxygen, nitrogen, sulfur, halogens a me ke kalapona, hiki nō hoʻi iā Boron
hui pololei me nā metala he nui e hana i nā borides. ʻO ka hopena o ka boron me nā hui organik i loko
ʻo ia hoʻi ka oxygen ma waena o ke kalapona a me ka boron.
Aia ka boron hoʻokahi ma kahi kūlana kūikawā ma ka laina hoʻokaʻawale ma waena o nā metala a me nā mea ʻole metala i loko o
papa ʻaina manawa. He mea hao ʻole ia me ka hoʻopiʻi maikaʻi ʻole ikaika, ka radius atomika liʻiliʻi, i hoʻohuihui ʻia
ka hoʻouka nukelea, a me nā waiwai ʻaʻole metala e like me ka sillicon. ʻO kona nui he 2.35g/cm3. ʻO ka paʻakikī he 9.3,
ʻO ke kaumaha kikoʻī he 2.33 - 2.45, kiko heheʻe 2300 ℃, kiko paila 2550 ℃.
1. Kaha ʻole
2. Hoʻopili uila lā
3. Mea hoʻokomo neutron no ka mea hoʻohana nukelea
4. Lāʻau lapaʻau, ʻoihana seramika a me ka mea hoʻouluulu synthesis organik
5. Ma ka ʻoihana uila, ʻo ke kia pailota o ka paipu pailota
6. Wahie ikehu kiʻekiʻe o ka mea hoʻoulu rocket paʻa
7. Hana ʻia o nā hui boron maʻemaʻe kiʻekiʻe like ʻole
8. Mea hoʻomaka palekana kaʻa
9. Hoʻoheheʻe kila kila kūikawā
10. Mea maka no ka hana ʻana i ka fiber boron
11. I loko o ka mea hoʻoheheʻe kinoea keleawe i hoʻoheheʻe ʻia
12. Hoʻomākaukau ʻana i nā mea cathode kiʻekiʻe, nā mea maka o ka lanthanum boride
13. No ka mea hana ikehu ʻātoma
14. Hiki ke hoʻohana ʻia ma ke ʻano he rocket a me ka wahie ikehu kiʻekiʻe no nā missiles
15. Hiki ke hoʻohana ʻia i ka ʻoihana hana ahi
16. Hana ʻana i nā mea maka koʻikoʻi koʻikoʻi o ka boron halide maʻemaʻe kiʻekiʻe
| Nā kikoʻī huahana | Hoʻoheheʻe ʻia i ka wai % Boron | ʻO ka % o ka mea hiki ʻole ke hoʻoheheʻe ʻia ka hydrogen peroxide | % o ka makū | Ka nui o ka granularity (D50) um | Ka nui o ka piula wai, g/cm3 |
| B ≥90% | ≤1 | ≤1 | ≤0.5 | 1 ~ 5 | 0.70 |
| B ≥92% | ≤1 | ≤1 | ≤0.5 | 1 ~ 5 | 0.70 |
| B ≥94% | ≤0.5 | ≤0.5 | ≤0.5 | 1 ~ 5 | 0.65 |
| B ≥96% | ≤0.5 | ≤0.5 | ≤0.5 | 1 ~ 5 | 0.65 |
1kg/ʻeke, ʻeke pepa alumini i hoʻopaʻa ʻia, 10kg/pahu pepa
A i ʻole hiki ke hoʻopilikino ʻia e like me nā pono o ka mea kūʻai aku
Pono ka mālama ʻana ma kahi anu, maloʻo a me ka ea.
E kākau i kāu leka ma aneʻi a hoʻouna mai iā mākou
