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Sodium X-type faujasite zeolite decomposition of dimethyl methylphosphonate (DMMP) to methylphosphonate: Nucleophilic zeolite reactions I
(Elsevier, 2006-06-20)
Dimethyl methylphosphonate (DMMP), used extensively as a nerve agent simulant, strongly adsorbs in X-type faujasite zeolite and undergoes nucleophilic substitution by the supercage oxygens. Solid state magic angle spinning ...
Reactions of Methyl Iodide and Halopropanes with Na0 Treated and Untreated NaX and NaY Zeolites
(Cambridge University Press, 2005)
Products formed from reactions of methyl iodide, 1-chloropropane, 1-iodopropane and 1-bromopropane with Na0 treated and untreated NaX and NaY zeolites were studied using solid state 13C NMR and IR spectroscopy. At room ...
Effects of Possible Spin-Spin Interactions on EPR spectra of Cu2+ exchanged Faujasite–X (I)
(Cambridge University Press, 2005)
The interpretation of the continuous wave electron paramagnetic resonance (CW-EPR) spectra of Cu2+ exchanged in Faujasite zeolite is not straightforward. Recent literature points to the role of both Cu2+ zeolite sites and ...
High concentrations of polycyclic aromatic hydrocarbons found in water and sediments of car wash and kisat areas of Winam Gulf, Lake Victoria-Kenya
(Springer-Verlag, 2009-01-09)
Mean concentrations of selected USEPA priority polycyclic aromatic hydrocarbons
(PAHs) in surface sediments and water samples from Car Wash and Kisat areas of Winam
Gulf, Lake Victoria in Kenya have been determined ...
Assessment of Constraints in Technology Transfer System and Policies which Limit the Realisation of High Green Leaf Production in the Smallholder Tea Sector of the Kenya Tea …
(African Technology Policy Studies Network (ATPS), 2005-01-01)
Technological recommendations for maximizing green leaf production have been made available to
smallholder farmers by the Tea Research Foundation of Kenya (TRFK) through various publications.
Indeed TRFK has released ...
Effects of fertilisers on tea yields and quality: A review with special reference to Africa and Sri Lanka.
(Tea Research Foundation of Kenya, 2001)
Introduction the increase in world demand, consequently tea Camellia sinensis L. 0 . Kuntze plants are commercially grown under different climatic conditions with latitudes ranging from 49' N (Outer Carpathians) to 33' S ...
Química Inorgânica 1
(African Virtual University U i i Vi ll Af i i, 2001-02-07)
O módulo começa com um olhar crítico à Tabela Periódica de elementos e a razão para a respectiva forma de classificação. A tabela torna mais fácil a compreensão e mais rápido, dos conceitos e factos da química dos elementos. ...
The relationship between some chemical parameters and sensory evaluations for plain black tea (Camellia sinensis) produced in Kenya and comparison with simila...
(Elsevier, 2006-08-31)
Reliable and accurately measurable chemical parameters that can be used to estimate
black tea quality are desirable in trade, research and breeding programmes. Using plain
Kenyan black tea from 11 cultivars, which gave ...
The relationship between some chemical parameters and sensory evaluations for plain black tea (Camellia sinensis) produced in Kenya and comparison with similar teas from Malawi and South Africa
(Elsevier, 2006-08-01)
Reliable and accurately measurable chemical parameters that can be used to estimate black tea quality are desirable in trade, research and breeding programmes. Using plain Kenyan black tea from 11 cultivars, which gave ...
Linear, primary monohaloalkane chemistry in NaX and NaY faujasite zeolites with and without Na0-treatment: Zeolites as nucleophilic reagents II
(Elsevier, 2006-06-20)
This work undertakes, we believe for the first time, a study of the chemistry of alkyl halides in Na0 treated zeolites. It concludes that
untreated zeolites do nucleophilic chemistry to the degree that the host is electron ...