Read e-book online Alkyl Polyglycosides: Technology, Properties, and PDF

By Karlheinz Hill, Wolfgang von Rybinski, Gerhard Stoll

ISBN-10: 3527294511

ISBN-13: 9783527294510

Alkyl polyglycosides are a brand new new release of multi-application, ecologically secure nonionic surfactants that shape a certainly reusable source. Written via pioneers within the box, this name information the technological, ecological, physicochemical and function elements of alkyl polyglycosides, and discusses the present patent scenario of those new commercially practicable fabrics.

Show description

Read or Download Alkyl Polyglycosides: Technology, Properties, and Applications PDF

Best industrial & technical books

Get Coatings Tribology Properties Mechanisms Techniques and PDF

The skin coating box is a swiftly constructing quarter of technological know-how and know-how that gives new tools and methods to manage friction and put on. New coating varieties are continuously being constructed and the capability purposes in several business fields are ever transforming into, starting from laptop elements and buyer items to scientific tools and prostheses.

Read e-book online Metal organic frameworks as heterogeneous catalysts PDF

Content material: advent; half A. SYNTHESIS AND CHARACTERIZATION OF MOFs; Synthesis of MOFs; Post-synthetic amendment of MOFs; Characterization of MOFs. 1. mixed Vibrational and digital Spectroscopies; Characterization of MOFs. 2. lengthy and native diversity Order Structural decision of MOFs via Combining EXAFS and Diffraction recommendations; MOFs for power and Environmental functions; Computational method of Chemical Reactivity of MOFs; CATALYSIS through MOFs

Download e-book for kindle: Cryogenic engineering by Thomas Flynn

Written by means of an engineering advisor with over forty eight years of expertise within the box, this moment variation offers a reader-friendly and thorough dialogue of the basic ideas and technology of cryogenic engineering together with the houses of fluids and solids, refrigeration and liquefaction, insulation, instrumentation, traditional fuel processing, and protection in cryogenic approach layout.

Extra info for Alkyl Polyglycosides: Technology, Properties, and Applications

Sample text

He showed that the two-phase region is influenced to a far greater extent by the length of the alkyl chain than in the case of alkyl polyglycol ethers (C,E,). If it is assumed that the cloud point of alkyl polyglycol ethers is linearly dependent on the alkyl chain length, a shortening of the alkyl chain by two carbon atoms represents an increase in the cloud point of around 15“C. By contrast, in the case of alkyl polyglycosides, the lower consolute temperature of a C,,,,, alkyl polyglycoside is between about 20 and 40 “C, depending on the chain length distribution and the degree of polymerization.

A typical high temperature gas chromatogramof a commercial alkyl polyglycoside sample is shown in Figure 1. The first group of peaks relates to the alkyl monoglycosides. They are separated according to carbon chain length and, in addition, into furanosides and pyranosides and a-and P-anomers. The high separation efficiencyof HTGC is demonstrated in Figure 2 which shows a magnified segment of an alkyl polyglycoside HTGC chromatogram. Nearly all the species in this segment are baseline-separated and can therefore be clearly identified and quantified.

C. -%I Figure 5. 8 [81 The dependence of the two-phase region on the alkyl chain length was elucidated in more detail by mixing Clo/lzalkyl polyglycoside with C,,,,, APG. If increasing quantities of C10/12alkyl polyglycoside are added to C,,,,, APG, the initially broad miscibility gap becomes gradually narrower (Figure 6),the separation zone separates from the Krafft point curve and a lower separation point becomes visible. Accordingly, the dependence of the clouding effect for alkyl polyglycosides is comparable with that of alkyl polyglycol ethers, although the dependence on chain length is extremely strong for alkyl polyglycosides.

Download PDF sample

Alkyl Polyglycosides: Technology, Properties, and Applications by Karlheinz Hill, Wolfgang von Rybinski, Gerhard Stoll


by John
4.3

Rated 4.87 of 5 – based on 3 votes