Jī-sng-hòa thòaⁿ-sò͘
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Jī-sng-hòa thoàⁿ-sò͘ (二酸化炭素, hòa-ha̍k-sek: CO2), sī chi̍t khoán hòa-ha̍p-bu̍t, sī 2-ê sng-sò͘ kiat 1-ê thòaⁿ-sò͘, in chi kan sī kiōng-iú (covalent) ê jī-tiông kiat-ha̍p (double bond).
Quick Facts Hō-miâ, Sek-pia̍t-hō ...
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Hō-miâ | |||
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Kî-tha hō-miâ
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Sek-pia̍t-hō | |||
CAS Number |
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3D model (JSmol) |
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3DMet | B01131 | ||
Beilstein Reference |
1900390 | ||
ChEBI | |||
ChEMBL | |||
ChemSpider |
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ECHA InfoCard | 100.004.271 | ||
EC Number | 204-696-9 | ||
E number | E290 (preservatives) | ||
Gmelin Reference |
989 | ||
KEGG |
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MeSH | Carbon+dioxide | ||
PubChem CID |
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RTECS number | FF6400000 | ||
UNII | |||
UN number | 1013 (gas), 1845 (solid) | ||
InChI
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SMILES
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Sèng-chit | |||
CO2 | |||
Mole chit-liōng | 44.01 g·mol−1 | ||
Gōa-māu | Bû-sek khì-thé | ||
Khì-bī |
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Bi̍t-tō͘ |
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Iûⁿ-tiám | −56.6 °C; −69.8 °F; 216.6 K (Sam-têng-tiám tī 5.1 atm) | ||
−78.5 °C; −109.2 °F; 194.7 K (1 atm) | |||
Tī chúi ê iûⁿ-kái-tō͘ |
1.45 g/L at 25 °C (77 °F), 100 kPa | ||
Cheng-khì-ap | 5.73 MPa (20 °C) | ||
Acidity (pKa) | 6.35, 10.33 | ||
Chû-hòa-lu̍t (χ) |
−20.5·10−6 cm3/mol | ||
Khut-chiat-lu̍t (nD) |
1.00045 | ||
Viscosity | 0.07 cP at −78.5 °C | ||
Dipole moment |
0 D | ||
Kò͘-chō | |||
Kiat-chiⁿ kò͘-chō |
trigonal | ||
Molecular shape |
linear | ||
Jia̍t-hòa-ha̍k | |||
Heat capacity (C) |
37.135 J/K mol | ||
Piau-chún mole entropy (S |
214 J·mol−1·K−1 | ||
Piau-chún hêng-sêng enthalpy (ΔfH |
−393.5 kJ·mol−1 | ||
Io̍h-lí-ha̍k | |||
ATC code |
V03AN02 (WHO) | ||
Gûi-hiám | |||
An-choân chu-liāu-toaⁿ | Sigma-Aldrich | ||
NFPA 704 | |||
Lethal dose or concentration (LD, LC): | |||
LCLo (lowest published) |
90,000 ppm (human, 5 min)[4] | ||
Bí-kok kiān-hong pī-pha̍k chè-hān (NIOSH): | |||
PEL (Ē-thong-kòe) |
TWA 5000 ppm (9000 mg/m3)[5] | ||
REL (Chhui-chiàn) |
TWA 5000 ppm (9000 mg/m3) ST 30,000 ppm (54,000 mg/m3)[5] | ||
IDLH (Chek-sî gûi-hiám) |
40,000 ppm[5] | ||
Koan-liân hòa-ha̍p-bu̍t | |||
Kî-tha im-lî-chú |
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Kî-tha iông-lî-chú |
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Related thòaⁿ-sò͘ sng-hòa-bu̍t |
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Koan-liân hòa-ha̍p-bu̍t |
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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). | |||
N cha-chèng (YN sī siáⁿ ?) | |||
Infobox chham-chiàu | |||
Close
Chit chióng hòa-ha̍p-bu̍t bô bī bô sek-tī, jî-chhiáⁿ tùi Tē-kiû sèⁿ-miā ū pit-iàu-sèng. I tī Tē-kiû tāi-khì tiong ê bi̍t-tō͘ tāi-khài sī 400 ppm.
Jī-sng-hòa thòaⁿ-sò͘ ê chū-jiân lâi-goân ū hóe-soaⁿ, un-chôaⁿ téng-téng, goân-lí sī in-ūi thòaⁿ-sng-iâm (carbonate) iûⁿ-kái tī chúi kap sng--nih.