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Chemistry
New in Chemistry (page 9 of 23)
May 20, 2009 | 09:29 AM CDT
Comparatively Speaking: Complex Esters from Neopentyl Glycol vs. Trimethylol Propane vs. Pentaerythritol
By: Anthony J. O'Lenick, Jr., Siltech LLC
Complex esters are an important class of compounds in the personal care market. These include fatty derivatives if neopentyl glycol, trimethylol propane and pentaerythritol.
Apr 17, 2009 | 04:55 PM CDT
Comparatively Speaking: Refractive Index vs. Optical Rotation
By: Anthony J. O'Lenick, Jr., Siltech LLC
The refractive index, or index of refraction of a medium, is a measure by how much the speed of light is reduced when it travels within specific solvents. The speed of light traveling through a vacuum is defined as 1.000.
Apr 07, 2009 | 10:04 AM CDT
Comparatively Speaking: Sterol vs. Stearyl
By: Anthony J. O'Lenick, Jr., Siltech LLC
Many terms used in personal care formulating sound and look alike yet have vastly different meanings. This primer for novice chemists examines the terms sterol and stearyl.
Mar 31, 2009 | 05:56 PM CDT
Online Research Directory
By: Katie Schaefer, Cosmetics & Toiletries magazin…
The Internet is a rich source of information; however, with such breadth of ever-changing content, it can be challenging to search and find relevant information quickly. Thus, Cosmetics & Toiletries magazine has compiled this Online Research Directory to make researching online easier. This directory, while not exhaustive, puts a significant number of resources related to cosmetics R&D at your fingertips, including associations, organizations, government agencies, regulatory bodies, certification groups and universities. This list will continually evolve as new sources emerge.
Mar 25, 2009 | 08:15 AM CDT
Biochemists Engineer Oxygen-Carrying Protein from Scratch
A team of biochemists from the University of Pennsylvania School of Medicine have built a completely new type of protein from scratch using design and engineering principles learned from nature.
Mar 24, 2009 | 05:09 PM CDT
Comparatively Speaking: Amphilic vs. Non-amphilic Compounds
By: Anthony J. O'Lenick, Jr., Siltech LLC
The term amphilic refers to a compound that possesses at least two groups that, if present in pure form, are insoluble in one another. The groups that are most commonly encountered are oil and water.
Mar 11, 2009 | 09:44 AM CDT
Calling All Chemists, Formulators and Researchers
Are you sitting on a research “gold mine”? Get your work published! Cosmetics & Toiletries magazine is interested in your research as it pertains to cosmetics and personal care R&D.
Mar 11, 2009 | 07:45 AM CDT
Comparatively Speaking: The Meaning of Subscripts
By: Anthony J. O'Lenick, Jr., Siltech LLC
In this look at chemical structures, Tony O'Lenick reviews the meaning of subscripts in the context of polymers.
Feb 26, 2009 | 11:42 AM CST
Cooking Chemistry and the Formulator: Egg Whites and Milk
By: Eric Abrutyn, TPC2 Advisors Ltd.
This article is the first in a four-part series that will highlight connections between the chemistry of cooking and personal care product development—including the reactions that occur and why, and how to best utilize these reactions for the benefit of novice formulators.
Feb 25, 2009 | 09:19 AM CST
Comparatively Speaking: Molecular Notation of Compounds vs. Compositions
By: Anthony J. O'Lenick, Jr., Siltech LLC
In this look at representative chemical structures, Tony O'Lenick compares the structural notation of molecules present in sodium chloride with those present in sodium polymethacrylate.