نتایج جستجو برای: solventless modification
تعداد نتایج: 127538 فیلتر نتایج به سال:
in this study, removal of methylene blue (mb) and maxilon blue sl 200% (mb sl) dyes from aqueous solutions by using raw clay (rc) of nevsehir (turkey) vicinity and ultrasonic-acid modified clay (mc) was investigated. adsorption was carried out with 500 mg/l mb and 50 mg/l for mb sl in terms of different adsorbent dosages, contact time, solution ph, temperature and stirring speed. the fitting of...
MEDIAWATCH: Rejection of scientific advice by the writers of a BBC thriller based on the consequences of genetic modification of wheat with an antibiotic-resistance gene renders the plot absurd, writes Bernard Dixon.
OBJECTIVE The present paper describes a model for public health nutrition practice designed to facilitate practice improvement and provide a step-wise approach to assist with workforce development. DESIGN The bi-cycle model for public health nutrition practice has been developed based on existing cyclical models for intervention management but modified to integrate discrete capacity-building ...
Nitrogen-containing heterocycles are of great interest to organic chemists since they present in a wide array bioactive molecules. The use allylic alcohols carry out the allylation has been described as sustainable alternative for this type functionalization. Among plethora methodologies described, metals, solvents, or hazardous reagents is ubiquitous. protocol work provided solventless and met...
The novel N-(3,5-bis(trifluoromethyl)benzyl)stearamide 3 was prepared in moderate yield by a solventless direct amidation reaction of stearic acid 1 with 3,5-bis(trifluoromethyl)benzylamine 2 at 140 °C for 24 h under metal- and catalyst-free conditions. This practical method conducted air without any special treatment or activation. fatty amide fully characterized IR, UV–Vis, 1D 2D NMR spectros...
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