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Topic: Heptadecane


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In the News (Sun 3 Jun 12)

  
  Hydrocarbons in intertidal sediments and mussels from Prince William Sound, Alaska   (Site not responding. Last check: 2007-10-09)
Marine planktonic and algal sources of pristane and normal alkanes were indicated by the presence of these alkanes in sediments and in mussels, and by the relatively high abundances of pristane, pentadecane (C-15), and heptadecane (C-17) in sediments and in mussels.
The concentrations of pristane, pentadecane (C-15), and heptadecane (C-17) varied significantly in sediments, in mussels, or in both, intra-annually or interannually.
Pristane variability in sediments and in mussels was significantly correlated and was probably due to variability of populations of calanoid copepods in Prince William Sound.
www.afsc.noaa.gov /techmemos/nmfs-afsc-9.htm   (741 words)

  
 CLRC Computational Science and Engineering Department - Molecular Simulation   (Site not responding. Last check: 2007-10-09)
In this collaboration the molecular dynamics simulation method was applied to a model heptadecane system, to provide independent evidence of the new phase and shed light on the structural and dynamical properties.
There is a pronounced motion of the chains perpendicular to the surface, which increases the entropy of the surface phase and may help to stabilize it.
The simulations suggest that the increased freedom of movement of the chains perpendicular to the surface is an important factor in the formation and stability of the surface.
www.cse.clrc.ac.uk /msi/projects/poly.shtml   (584 words)

  
 342. Food-grade mineral oil (WHO Food Additives Series 5)
Heptadecane and dodecylcyclohexane were given, during one week, to eight rats at a daily dose of 15 mg incorporated in the diet.
Protein sources from Spirula family algae contain up to 0.15% heptadecane.
TOXICOLOGICAL STUDIES Special studies Nutritional implications There are two possible reasons for the presence of mineral oil in food; (1) in trace amounts from its use as a lubricant or separant e.g.
www.inchem.org /documents/jecfa/jecmono/v05je84.htm   (1789 words)

  
 Diel Variations in Carbon Metabolism by Green Nonsulfur-Like Bacteria in Alkaline Siliceous Hot Spring Microbial Mats ...
cyanobacteria (heptadecane [44]) and GNSLB (wax esters [45,
heptadecane remained identical to the value in the nonpreincubated
C of the heptadecane was lower than that
aem.asm.org /cgi/content/full/71/7/3978   (4987 words)

  
 HIGH-PRESSURE PHASE BEHAVIOR OF BINARY SYSTEMS OF HEPTADECANE AND OCTADECANE WITH CARBON DIOXIDE OR ETHANE   (Site not responding. Last check: 2007-10-09)
Phase behavior of four binary systems of heptadecane and octadecane with CO2 and ethane was investigated in the temperature range from 270 to 320 K and pressures up to 30 MPa.
The observed phase boundaries correspond to the three-phase coexisting lines with some nonvariant points of quadruple points and critical endpoints.
In the homologous series of n-alkane + CO2 systems, the "odd-even effect" of carbon numbers of n-alkanes has been observed in the relation of the triple point of n-alkane and the quadruple point.
www.scej.org /ronbun/JCEJe/e26p0074.html   (192 words)

  
 Heptadecane - Manufacturer, Suppliers, Exporter, Import & Export
Heptadecane - Manufacturer, Suppliers, Exporter, Import & Export
You are here: Home » Suppliers selection » Heptadecane
With ExportPages you will find international Suppliers, Manufacturers and Exporters of Heptadecane from around the world.
www.exportpages.com /auswahlc/79006/Heptadecane/1/0/data.html   (42 words)

  
 Evaporative Light Scattering Detector, PL-ELS 2100 Ice
Even compounds with high boiling points can benefit from the PL-ELS 2100 Ice, as shown opposite.
The hydrocarbons, hexadecane (Bp 287°C), heptadecane (Bp 302°C) and eicosane (Bp 343°C) have high boiling points that suggest they are easily detectable by ELSD.
Operating the PL-ELS 2100 Ice at 18°C dramatically improves the response of hexadecane and heptadecane, such that they saturate the detector signal.
www.polymerlabs.com /elsd/els2100ice.htm   (362 words)

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