Aims: To obtain the distillation column efficiency as a function of the packing materials used at various feed compositions of binaries and a ternary system to validate the most effective packing arrangement. Study Design: The design was based on the concentrations obtained from...
Open access
Research Article10.9734/ACSJ/2013/3175
The reactions of 2,3-tri-,-tetramethylene-7,8–dihydro-6Н–thieno[2,3-d]pyrrolo[1,2-a] pyrimidine-4-ones (1a,b) and 2,3-dimethyl-,-tri-,-tetra-,-pentamethylene-6,7,8,9-tetrahydropyrido[1,2-a]thieno[2,3-d]pyrimidine–4-ones (4a-d), containing active methylene groups in positions 8 or...
Open access
Research Article10.9734/ACSJ/2013/2966
The characteristics of plasma sprayed pure red mud coatings have been investigated.The red mud was collected as a waste from aluminium production. In order to understand the coating characteristics, pure red mud was plasma coated. After plasma spraying, the coated materials have...
Open access
Research Article10.9734/ACSJ/2013/3218
A density functional theory (DFT) calculations were carried out to investigate the relative energies, equilibrium constants and dipole moments of 2-thiouracil in the gas phase and in solutions with different polarities. Solvent effects were examined by means of the self-consisten...
Open access
Research Article10.9734/ACSJ/2013/2905
Hydrogen (H2) is considered as the future fuel. The present work on “Bio Hydrogen Production from Pharmaceutical Waste Water Treatment by a Suspended Growth Reactor Using Environmental Anaerobic Technology. This is an appreciated approach at wealth generation through value additi...
Open access
Research Article10.9734/ACSJ/2013/2649
Aims: To analyze the nature and peculiarities of Small and Medium Enterprises (SMEs) in Zimbabwe chemical industry with reference to safety and environmental risks. Study Design: This study took a survey approach. Place and Duration of Study: Graniteside (GR), Willowvale (WV), So...
Open access
Research Article10.9734/ACSJ/2013/2759
Aims: The present work aims to study the effect of aromatic structure on the inhibition of biogas biosynthesis, and more specifically the comparative study of benzenediols, methylphenols and chloroanilines isomers on the inhibition of acetoclastic methanogenesis by digested pig m...
Open access
Research Article10.9734/ACSJ/2013/2491
Aims: The study is aimed to obtain acylated derivatives of polyprenols which were isolated from leaves of grape Vitis vinifera L. Study Design: Modification of natural compounds. Place and Duration of Study: Department of Organic Chemistry, Institute of the Chemistry of Plant Sub...
Open access
Research Article10.9734/ACSJ/2013/2916
Aims: To assess the likelihood of occurrence of domino effect in a group of neighbouring companies in Msasa Industrial area. Study Design: A case study approach was used. Place and Duration of Study: Msasa industrial area, Harare Zimbabwe between June 2011 and June 2012. Methodol...
Open access
Research Article10.9734/ACSJ/2013/2677
Dendrons with dodecyl terminal groups joined to benzyloxy moieties were attached to a cyclotriveratrylene core. The dendrimers were used in Bingel cyclopropanation reaction with the fullerene C60. The structure of the synthesized dendrimers was confirmed by 1H- and 13C-NMR, MALDI...
Open access
Research Article10.9734/ACSJ/2013/2467
Sulfonamides are known to represent a class of medicinally important compounds which are extensively used as antibacterial agents. Hence, a series of new N,N-diethyl amide bearing sulfonamides (2a-k) were synthesized via amidation of easily prepared benzenesulfonamide precursors...
Open access
Research Article10.9734/ACSJ/2013/2397
A novel method for the fabrication of high purity yttria, Y2O3, nano-particles is presented by thermal decomposition of salicylic acid-Y(III) nano composite as precursor. The nano composite was formed by a sonochemical method from the reaction between Y(III) nitrate hexahydrate,...
Open access
Research Article10.9734/ACSJ/2013/1618
The linear equation ∆cHo = i + f (N - g), in which i and f are the factors of correlation, describing interdependence between then heat of combustion organic compounds and their number (N) valence electrons except for a number of lone electron pairs (g) heteroatoms in them, it ha...
Open access
Research Article10.9734/ACSJ/2013/2079
The composite activated carbons were produced using both lignocellulosic materials and urban waste plastics and their characteristics were investigated. The mixture of raw material was first carbonized at 600ºC in N2 atmosphere. The char obtained was then mixed with KOH (in the r...
Open access
Research Article10.9734/ACSJ/2013/2210
Aims: This study is aimed at using plant extracts to prevent corrosion of aluminium in acidic medium. The inhibition efficiency of different extracts of 1M HCl, ethanol and distilled water were determined. Study Design: Gravimetric method was used for the analysis. Place and Dura...
Open access
Research Article10.9734/ACSJ/2012/1835