Jī-sng-hòa thòaⁿ-sò͘
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).
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| Hō-miâ | |||
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Kî-tha hō-miâ
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| Sek-pia̍t-hō | |||
3D model (JSmol)
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| 3DMet | B01131 | ||
| 1900390 | |||
| ChEBI | |||
| ChEMBL | |||
| ChemSpider | |||
| ECHA InfoCard | 100.004.271 | ||
| EC Number | 204-696-9 | ||
| E number | E290 (preservatives) | ||
| 989 | |||
| KEGG | |||
| MeSH | Carbon+dioxide | ||
PubChem CID
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| RTECS number | FF6400000 | ||
| UNII | |||
| UN number | 1013 (gas), 1845 (solid) | ||
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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) | |||
| 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)
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−20.5·10−6 cm3/mol | ||
Khut-chiat-lu̍t (nD)
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1.00045 | ||
| Viscosity | 0.07 cP at −78.5 °C | ||
| 0 D | |||
| Kò͘-chō | |||
| trigonal | |||
| linear | |||
| Jia̍t-hòa-ha̍k | |||
Heat capacity (C)
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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 | |||
| V03AN02 (WHO) | |||
| Gûi-hiám | |||
| An-choân chu-liāu-toaⁿ | Sigma-Aldrich | ||
| NFPA 704 | |||
| Lethal dose or concentration (LD, LC): | |||
LCLo (lowest published)
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90,000 ppm (human, 5 min)[3] | ||
| Bí-kok kiān-hong pī-pha̍k chè-hān (NIOSH): | |||
PEL (Ē-thong-kòe)
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TWA 5000 ppm (9000 mg/m3)[2] | ||
REL (Chhui-chiàn)
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TWA 5000 ppm (9000 mg/m3) ST 30,000 ppm (54,000 mg/m3)[2] | ||
IDLH (Chek-sî gûi-hiám)
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40,000 ppm[2] | ||
| 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). | |||
 cha-chèng (  sī siáⁿ ?)
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| Infobox chham-chiàu | |||
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.
Bu̍t-lí sèng-chit
siu-káiJī-sng-hòa thòaⁿ-sò͘ sī bû-sek--ê. Tī kē lông-tō͘ ê sî khì-thé sī bû-khì-bī--ê; chóng-sī, tī chhiong-chiok ê koân lông-tō͘ chōng-hóng, ē chhut ē-lāi--ê, sng-sèng ê khì-bī.[1] Tī phiau-chún ap-le̍k kap ūn-tōng, jī-sng-hòa thòaⁿ-sò͘ ê bi̍t-tō͘ sī iok-lio̍k 1.98 kg/m3, chha-put-to khong-khì ê 1.67 pōe.
Chham-chiàu
siu-kái- ↑ 1.0 1.1 "Carbon Dioxide" (PDF). Air Products. goân-loē-iông (PDF) tī 2020-07-29 hőng khó͘-pih. 2018-08-21 khòaⁿ--ê.
- ↑ 2.0 2.1 2.2 "NIOSH Pocket Guide to Chemical Hazards #0103". National Institute for Occupational Safety and Health (NIOSH).
- ↑ "Carbon dioxide". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
- ↑ "Safety Data Sheet - Carbon Dioxide Gas - version 0.03 11/11" (PDF). AirGas.com. 12 February 2018. 4 August 2018 khòaⁿ--ê.
- ↑ "Carbon dioxide, refrigerated liquid" (PDF). Praxair. p. 9. 26 July 2018 khòaⁿ--ê.
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