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Jī-sng-hòa thòaⁿ-sò͘

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Jī-sng-hòa thòaⁿ-sò͘
Structural formula of carbon dioxide with bond length
Ball-and-stick model of carbon dioxide
Ball-and-stick model of carbon dioxide
Space-filling model of carbon dioxide
Space-filling model of carbon dioxide
Hō-miâ
Kî-tha hō-miâ
  • Carbonic acid gas
  • Carbonic anhydride
  • Carbonic oxide
  • Carbon oxide
  • Carbon(IV) oxide
  • Dry ice (solid phase)
Sek-pia̍t-hō
3D model (JSmol)
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
RTECS number FF6400000
UNII
UN number 1013 (gas), 1845 (solid)
Sèng-chit
CO2
Mole chit-liōng 44.01 g·mol−1
Gōa-māu Bû-sek khì-thé
Khì-bī
  • Kē lông-tō͘: bô
  • Koân lông-tō͘: lāi; sng[1]
Bi̍t-tō͘
  • 1562 kg/m3 (1 atm kiam −78.5 °C ê sî kò͘-thé)
  • 1101 kg/m3 (pá-hô −37°C ê sî e̍k-thé)
  • 1.977 kg/m3 (1 atm kiam 0 °C ê sî khì-thé)
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
−20.5·10−6 cm3/mol
1.00045
Viscosity 0.07 cP at −78.5 °C
0 D
Kò͘-chō
trigonal
linear
Jia̍t-hòa-ha̍k
37.135 J/K mol
214 J·mol−1·K−1
−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):
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
Koan-liân hòa-ha̍p-bu̍t
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 (☑Y☒N sī siáⁿ ?)
Infobox chham-chiàu

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).

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-káichúi kap sng--nih.

Bu̍t-lí sèng-chit

[siu-kái | kái goân-sí-bé]

Jī-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]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.

  1. 1 2 "Carbon Dioxide" (PDF). Air Products. goân-loē-iông (PDF) tī 2020-07-29 hőng khó͘-pih. 2018-08-21 khòaⁿ--ê.
  2. "Safety Data Sheet - Carbon Dioxide Gas - version 0.03 11/11" (PDF). AirGas.com. 12 February 2018. 4 August 2018 khòaⁿ--ê.
  3. "Carbon dioxide, refrigerated liquid" (PDF). Praxair. p. 9. 26 July 2018 khòaⁿ--ê.
  4. "Carbon dioxide". Immediately Dangerous to Life and Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).
  5. 1 2 3 "NIOSH Pocket Guide to Chemical Hazards #0103". National Institute for Occupational Safety and Health (NIOSH).