Robbins constant: Difference between revisions

From formulasearchengine
Jump to navigation Jump to search
en>David Eppstein
remove orphan tag
en>David Eppstein
m clean up refs
 
Line 1: Line 1:
{{Use dmy dates|date=June 2013}}
The title of the author is Luther. Delaware is our birth place. Playing crochet is some thing that I've carried out for many years. Meter reading is exactly where my main income comes from but quickly I'll be on my personal.<br><br>Also visit my homepage: auto warranty ([http://Pchelpnow.biz/ActivityFeed/MyProfile/tabid/60/userId/48445/Default.aspx click through the up coming post])
<!-- 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]]

Latest revision as of 20:17, 5 May 2014

The title of the author is Luther. Delaware is our birth place. Playing crochet is some thing that I've carried out for many years. Meter reading is exactly where my main income comes from but quickly I'll be on my personal.

Also visit my homepage: auto warranty (click through the up coming post)