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Sng-hòa a-lú-mih
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Sng-hoà a-lú-mih (酸化--) sī kheng-gîn kap sng-sò͘ ê hòa-ha̍p-bu̍t, hòa-ha̍k-sek Al2O3 . Tī khòng-gia̍p, tô-chû, kap châi-liāu kho-ha̍k chia-ê thoân-thé, mā tiāⁿ-tiāⁿ kā kiò-chò alumina.
Quick Facts Sek-pia̍t-hō, Sèng-chit ...
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Sek-pia̍t-hō | |
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CAS Number |
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3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.014.265 |
PubChem CID |
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RTECS number | BD120000 |
UNII | |
InChI
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SMILES
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Sèng-chit | |
Al2O3 | |
Mole chit-liōng | 101.96 g·mol−1 |
Gōa-māu | pe̍h-sek kò͘-thé |
Khì-bī | bô-bī |
Bi̍t-tō͘ | 3.987g/cm3 |
Iûⁿ-tiám | 2,072 °C (3,762 °F; 2,345 K)[1] |
Hut-tiám | 2,977 °C (5,391 °F; 3,250 K)[2] |
Tī chúi ê iûⁿ-kái-tō͘ |
bē-iûⁿ-kái |
Iûⁿ-kái-tō͘ | tī diethyl ether ni̍h bē-iûn-kái tī ethanol ni̍h si̍t-ēng-siōng bē-iûⁿ-kái |
log P | 0.31860[3] |
Chû-hòa-lu̍t (χ) |
−37.0×10−6 cm3/mol |
Jia̍t thoân-tó-lu̍t | 30 W·m−1·K−1[4] |
Khut-chiat-lu̍t (nD) |
nω=1.768–1.772 nε=1.760–1.763 Birefringence 0.008 |
Kò͘-chō | |
Kiat-chiⁿ kò͘-chō |
Trigonal, hR30, space group = R3c, No. 167 |
Keh-á tēng-sò͘ |
a = 478.5 pm, c = 1299.1 pm |
Phòe-ūi kí-hô |
octahedral |
Jia̍t-hòa-ha̍k | |
Piau-chún mole entropy (S |
50.92 J·mol−1·K−1[5] |
Piau-chún hêng-sêng enthalpy (ΔfH |
−1675.7 kJ/mol[5] |
Io̍h-lí-ha̍k | |
ATC code |
D10AX04 (WHO) |
Gûi-hiám | |
EU hun-lūi-hoat (DSD) (kòe-sî) |
Bô khai-lia̍t |
NFPA 704 | ![]()
0
1
0 |
Ín-hóe-tiám | Bû-jiân-sèng |
Bí-kok kiān-hong pī-pha̍k chè-hān (NIOSH): | |
PEL (Ē-thong-kòe) |
OSHA 15 mg/m3 (Total Dust) OSHA 5 mg/m3 (Respirable Fraction) ACGIH/TLV 10 mg/m3 |
REL (Chhui-chiàn) |
bô[6] |
IDLH (Chek-sî gûi-hiám) |
N.D.[6] |
Koan-liân hòa-ha̍p-bu̍t | |
Kî-tha im-lî-chú |
chúi-sng-hòa a-lú-mih |
Kî-tha iông-lî-chú |
sam-sng-hòa phêng-sò͘ sng-hòa gallium sng-hòa indium sng-hòa thallium |
Tû-liáu te̍k-pia̍t chí chhut, chu-liāu sī kun-kù bu̍t-chit ê piau-chún chōng-thài (tī 25 °C [77 °F], 100 kPa). | |
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Infobox chham-chiàu | |
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