منابع مشابه
Studies of Aluminum Soaps
I t has been shown by McBain and collaborators I that aluminum soaps present characteristics somewhat akin to proteins in their lyophilic colloidal behavior. These soaps, particularly the aluminum disoaps AIOHR~, are solids which can be prepared relatively pure. No macroscopic crystals have yet been obtained but powder x-ray diffraction patterns show structures varying from almost amorphous to ...
متن کاملConductometric Soot Sensor for Automotive Exhausts: Initial Studies
In order to reduce the tailpipe particulate matter emissions of Diesel engines, Diesel particulate filters (DPFs) are commonly used. Initial studies using a conductometric soot sensor to monitor their filtering efficiency, i.e., to detect a malfunction of the DPF, are presented. The sensors consist of a planar substrate equipped with electrodes on one side and with a heater on the other. It is ...
متن کاملThermal Stability Studies on Some Metal Soaps of Hura Crepitans Seed Oil
Thermal stability studies on some metal soaps of Hura crepitans seed oil prepared by metathesis in aqueous alcohol solution were carried out. The kinetics of the decomposition was studied thermogravimetrically in the temperature range 160 – 200 C. The values of the rate constant are of the order 10min and temperature-dependent. The enthalpy of activation (∆H) of the initial stage of decompositi...
متن کاملSoaps, shampoos, and detergents.
In clinical dermatology, few questions are asked more commonly than “What is the best way for me to clean my skin or hair?” The modern dermatologist needs to be familiar with the physiologic action of cleansing products available on the market. This familiarity should include chemical composition, application, cosmetic benefits, and safety, as well as potential hazards. This knowledge must be a...
متن کاملPotentiometric and conductometric studies on the system acid-isopolytungstate and the formation of lanthanum tungstates
The stoichiometry of the polyanions formed by the action of nitric acid on sodium tungstate (≤ 0.01M) has been studied by means of electrometric techniques involving pH-potentiometric and conductometric titrations. The well defined inflections and breaks in the titration curves provide evidence for the existence of the polyanions, para-W12O41 and meta-W12O39 corresponding to the ratio of H:WO4 ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Portugaliae Electrochimica Acta
سال: 2012
ISSN: 1647-1571
DOI: 10.4152/pea.201201045