Robbins constant: Difference between revisions

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<!-- To obtain a blank version of this page, type subst:chembox supplement inside of double curly braces, {{}}, and save the page -->
This page provides supplementary chemical data on [[acetaldehyde]]. <!-- replace with proper wikilink -->
 
== Material Safety Data Sheet == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
 
The handling of this chemical may require safety precautions. The directions on the Material Safety Datasheet ([[Material safety data sheet|MSDS]]) should be followed.
*[http://www2.siri.org/msds/mf/cards/file/0009.html SIRI]
 
== Structure and properties == <!-- KEEP this header, it is linked to form the infobox on the main article page -->
 
{| border="1" cellspacing="0" cellpadding="3" style="margin: 0 0 0 0.5em; background: #FFFFFF; border-collapse: collapse; border-color: #C0C090;"
! {{chembox header}} | Structure and properties
|-
| [[Index of refraction]], ''n''<sub>D</sub>
| 1.3392 at 18°C <!-- Please omit if not applicable -->
|-
| [[Abbe number]]
|? <!-- Please omit if not applicable -->
|-
| [[Dielectric constant]], ε<sub>r</sub>
| 21.1  ε<sub>0</sub> at 21 °C <!-- Please omit if not applicable -->
|-
| [[Bond strength]]
| ? <!-- Specify which bond. Please omit if not applicable -->
|-
| [[Bond length]]
| ? <!-- Specify which bond. Please omit if not applicable -->
|-
| [[Bond angle]]
| ? <!-- Specify which angle, e.g. Cl-P-O. Please omit if not applicable -->
|-
| [[Magnetic susceptibility]]
| ? <!-- Please omit if not applicable -->
|-
| [[Surface tension]]<ref name="lange1661">''Lange's Handbook of Chemistry'', 10th ed. pp 1661-1663</ref>
| 22.3 dyn/cm at 10°C<br>21.2 dyn/cm at 20°C<br>17.0 dyn/cm at 50°C
|-
| [[Viscosity]]<ref name="lange1669">''Lange's Handbook of Chemistry'', 10th ed. pp 1669-1674</ref>
| 0.2751 mPa·s at 0°C<br>0.2521 mPa·s at 10°C<br>0.2307 mPa·s at 20°C
|-
|}
 
== Thermodynamic properties == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
 
{| border="1" cellspacing="0" cellpadding="6" style="margin: 0 0 0 0.5em; background: #FFFFFF; border-collapse: collapse; border-color: #C0C090;"
! {{chembox header}} | Phase behavior
|-
| [[Triple point]]
| ? K (? °C), ? Pa
|-
| [[Critical point (chemistry)|Critical point]]<ref name="cheric_p">{{Cite web|url=http://www.cheric.org/research/kdb/hcprop/cmpsrch.php|title=Pure Component Properties|publisher=Chemical Engineering Research Information Center|accessdate=27 May 2007| archiveurl= http://web.archive.org/web/20070603180431/http://www.cheric.org/research/kdb/hcprop/cmpsrch.php| archivedate= 3 June 2007 <!--DASHBot-->| deadurl= no}}</ref>
| 466 K (183 °C), 5570 kPa
|-
| [[Standard enthalpy change of fusion|Std enthalpy change<br/>of fusion]], Δ<sub>fus</sub>''H''<sup><s>o</s></sup>
| 2.310 kJ/mol
|-
| [[Standard entropy change of fusion|Std entropy change<br/>of fusion]], Δ<sub>fus</sub>''S''<sup><s>o</s></sup>
| 15.43 J/(mol·K)
|-
| [[Standard enthalpy change of vaporization|Std enthalpy change<br/>of vaporization]], Δ<sub>vap</sub>''H''<sup><s>o</s></sup>
| 26.12 kJ/mol
|-
| [[Standard entropy change of vaporization|Std entropy change<br/>of vaporization]], Δ<sub>vap</sub>''S''<sup><s>o</s></sup>
| ? J/(mol·K)
|-
! {{chembox header}} | Solid properties
|-
| [[Standard enthalpy change of formation|Std enthalpy change<br/>of formation]], Δ<sub>f</sub>''H''<sup><s>o</s></sup><sub>solid</sub>
| ? kJ/mol
|-
| [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>solid</sub>
| ? J/(mol K)
|-
| [[Heat capacity]], ''c<sub>p</sub>''
| ? J/(mol K)
|-
! {{chembox header}} | Liquid properties
|-
| [[Standard enthalpy change of formation|Std enthalpy change<br/>of formation]], Δ<sub>f</sub>''H''<sup><s>o</s></sup><sub>liquid</sub>
| –196.4 kJ/mol
|-
| [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>liquid</sub>
| 117.3 J/(mol K)
|-
| [[Enthalpy of combustion]], Δ<sub>c</sub>''H''<sup><s>o</s></sup>
| –1167 kJ/mol
|-
| [[Heat capacity]], ''c<sub>p</sub>''
| 96.21 J/(mol K) at 0°C<br>89.05 J/(mol K) at 25°C
|-
! {{chembox header}} | Gas properties
|-
| [[Standard enthalpy change of formation|Std enthalpy change<br/>of formation]], Δ<sub>f</sub>''H''<sup><s>o</s></sup><sub>gas</sub>
| –170.7 kJ/mol
|-
| [[Standard molar entropy]],<br/>''S''<sup><s>o</s></sup><sub>gas</sub>
| 250.3 J/(mol K)
|-
| [[Heat capacity]], ''c<sub>p</sub>''
| 55.32 J/(mol K) at 25°C
|-
|}
 
==Vapor pressure of liquid==
{| border="1" cellspacing="0" cellpadding="6" style="margin: 0 0 0 0.5em; background: white; border-collapse: collapse; border-color: #C0C090;"
|-
| {{chembox header}} | '''P in mm Hg''' || 1 || 10 || 40 || 100 || 400 || 760
|-
| {{chembox header}} | '''T in °C''' || –81.5 || –56.8 || –37.8 || –22.6 || 4.9 || 20.2
|}
Table data obtained from ''CRC Handbook of Chemistry and Physics'' 44th ed.
 
[[Image:LogAcetaldehydeVaporPressure.png|thumb|728px|left|'''log<sub>10</sub> of Acetaldehyde vapor pressure.''' Uses formula: <math>\scriptstyle \log_e P_{mmHg} =</math><math>\scriptstyle \log_e (\frac {760} {101.325}) - 18.27131\log_e(T+273.15) - \frac {7241.251} {T+273.15} + 130.8048 + 2.633634 \times 10^{-5} (T+273.15)^2</math> obtained from CHERIC<ref name="cheric_p"/>]]{{Clear}}
 
== Spectral data == <!-- KEEP this header, it is linked to from the infobox on the main article page -->
 
{| border="1" cellspacing="0" cellpadding="3" style="margin: 0 0 0 0.5em; background: #FFFFFF; border-collapse: collapse; border-color: #C0C090;"
! {{chembox header}} | [[UV/VIS spectroscopy|UV-Vis]]
|-
| [[Lambda-max|λ<sub>max</sub>]]
| ? [[Nanometre|nm]]
|-
| [[molar absorptivity|Extinction coefficient]], ε
| ?
|-
! {{chembox header}} | [[Infrared|IR]]
|-
| Major absorption bands<ref name="aist">{{Cite web|url=http://www.aist.go.jp/RIODB/SDBS/cgi-bin/cre_index.cgi|title=Spectral Database for Organic Compounds|publisher=Advanced Industrial Science and Technology|format=Queriable database|accessdate=9 June 2007}}</ref>
|
{|
|-
| colspan="2" align="center" | (liquid film)
|-
! Wave number !! transmittance
|-
| 3432&nbsp;cm<sup>&minus;1</sup> || 72%
|-
| 3001&nbsp;cm<sup>&minus;1</sup> || 66%
|-
| 2846&nbsp;cm<sup>&minus;1</sup> || 42%
|-
| 2733&nbsp;cm<sup>&minus;1</sup> || 44%
|-
| 1727&nbsp;cm<sup>&minus;1</sup> || 4%
|-
| 1629&nbsp;cm<sup>&minus;1</sup> || 79%
|-
| 1429&nbsp;cm<sup>&minus;1</sup> || 36%
|-
| 1401&nbsp;cm<sup>&minus;1</sup> || 41%
|-
| 1350&nbsp;cm<sup>&minus;1</sup> || 25%
|-
| 1179&nbsp;cm<sup>&minus;1</sup> || 70%
|-
| 1114&nbsp;cm<sup>&minus;1</sup> || 29%
|-
| 945&nbsp;cm<sup>&minus;1</sup> || 77%
|-
| 767&nbsp;cm<sup>&minus;1</sup> || 61%
|-
| 514&nbsp;cm<sup>&minus;1</sup> || 35%
|}
|-
! {{chembox header}} | [[NMR Spectroscopy|NMR]]
|-
| [[Proton NMR]] <!-- Link to image of spectrum -->
| &nbsp;
|-
| [[Carbon-13 NMR]] <!-- Link to image of spectrum -->
| &nbsp;
|-
| Other NMR data <!-- Insert special data e.g. <sup>19</sup>F chem. shifts, omit if not used -->
| &nbsp;
|-
! {{chembox header}} | [[Mass Spectrometry|MS]]
|-
| Masses of <br>main fragments
| &nbsp; <!-- Give list of major fragments -->
|-
|}
 
==References==
<references/>
{{Cite web|url=http://webbook.nist.gov/chemistry/|title=NIST Standard Reference Database}}
 
Except where noted otherwise, data relate to [[standard ambient temperature and pressure]].
 
[[wikipedia:Chemical infobox|Disclaimer]] applies.
 
{{DEFAULTSORT:Acetaldehyde (Data Page)}}
[[Category:Chemical data pages]]

Revision as of 03:43, 13 October 2013

30 year-old Entertainer or Range Artist Wesley from Drumheller, really loves vehicle, property developers properties for sale in singapore singapore and horse racing. Finds inspiration by traveling to Works of Antoni Gaudí. This page provides supplementary chemical data on acetaldehyde.

Material Safety Data Sheet

The handling of this chemical may require safety precautions. The directions on the Material Safety Datasheet (MSDS) should be followed.

Structure and properties

Structure and properties
Index of refraction, nD 1.3392 at 18°C
Abbe number ?
Dielectric constant, εr 21.1 ε0 at 21 °C
Bond strength ?
Bond length ?
Bond angle ?
Magnetic susceptibility ?
Surface tension[1] 22.3 dyn/cm at 10°C
21.2 dyn/cm at 20°C
17.0 dyn/cm at 50°C
Viscosity[2] 0.2751 mPa·s at 0°C
0.2521 mPa·s at 10°C
0.2307 mPa·s at 20°C

Thermodynamic properties

Phase behavior
Triple point ? K (? °C), ? Pa
Critical point[3] 466 K (183 °C), 5570 kPa
Std enthalpy change
of fusion, ΔfusHo 		2.310 kJ/mol
Std entropy change
of fusion, ΔfusSo 		15.43 J/(mol·K)
Std enthalpy change
of vaporization, ΔvapHo 		26.12 kJ/mol
Std entropy change
of vaporization, ΔvapSo 		? J/(mol·K)
Solid properties
Std enthalpy change
of formation, ΔfHosolid 		? kJ/mol
Standard molar entropy,
Sosolid 		? J/(mol K)
Heat capacity, cp ? J/(mol K)
Liquid properties
Std enthalpy change
of formation, ΔfHoliquid 		–196.4 kJ/mol
Standard molar entropy,
Soliquid 		117.3 J/(mol K)
Enthalpy of combustion, ΔcHo –1167 kJ/mol
Heat capacity, cp 96.21 J/(mol K) at 0°C
89.05 J/(mol K) at 25°C
Gas properties
Std enthalpy change
of formation, ΔfHogas 		–170.7 kJ/mol
Standard molar entropy,
Sogas 		250.3 J/(mol K)
Heat capacity, cp 55.32 J/(mol K) at 25°C

Vapor pressure of liquid

P in mm Hg 1 10 40 100 400 760
T in °C –81.5 –56.8 –37.8 –22.6 4.9 20.2

Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

log10 of Acetaldehyde vapor pressure. Uses formula: obtained from CHERIC[3]

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Spectral data

UV-Vis
λmax ? nm
Extinction coefficient, ε ?
IR
Major absorption bands[4]
(liquid film)
Wave number transmittance
3432 cm−1 72%
3001 cm−1 66%
2846 cm−1 42%
2733 cm−1 44%
1727 cm−1 4%
1629 cm−1 79%
1429 cm−1 36%
1401 cm−1 41%
1350 cm−1 25%
1179 cm−1 70%
1114 cm−1 29%
945 cm−1 77%
767 cm−1 61%
514 cm−1 35%
NMR
Proton NMR  
Carbon-13 NMR  
Other NMR data  
MS
Masses of
main fragments 		 

References

  1. ↑ Lange's Handbook of Chemistry, 10th ed. pp 1661-1663
  2. ↑ Lange's Handbook of Chemistry, 10th ed. pp 1669-1674
  3. ↑ 3.0 3.1 Template:Cite web
  4. ↑ Template:Cite web

Template:Cite web

Except where noted otherwise, data relate to standard ambient temperature and pressure.

Disclaimer applies.

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