39th CSN Annual International Conference

18th - 23rd September, 2016

Chemical Society of Nigeria

Law faculty, Rivers State University of Science & Technology (RSUST), Port Harcourt, Rivers State, Nigera.


Using index models for heavy metal pollution estimation of sediments from Bomu and Oginigba rivers

Sediments collected from Bomu and Oginigba rivers were treated according to recommended standards and subsequently analyzed for heavy metals and further tested with index models. The results showed that all the metals examined were higher than the recommended upper limits in sediments by China and USEPA except lead in the Oginigba River and cadmium in both rivers. In both rivers, all the metals, copper (Cu), nickel...

Author(s): Marcus, A. C. and Edori, O. S.  

  • Article Number: BF1DB40

Characterization and distributions of aliphatic and polyaromatic hydrocarbons in soils of oil sand deposits area of Ondo State, Nigeria

The concentration, distribution profile and possible sources of n-alkanes and polycyclic aromatic hydrocarbons in the soil of oil sand deposits in Ondo Southwest Nigeria were investigated to determine the present level of contamination prior to exploitation of the oil sand deposits. Surface soil samples (0-15 cm) were collected from Ilubinrin, Agbabu and Oloda communities. The level and distribution of polyaromatic...

Author(s):   T. A. Adedosu, O. K. Adeniyi and O. H. Adedosu  

  • Article Number: 4DB0442

Preparation and characterization of activated carbon from Hura crepitans Linn seed shells

Activated carbons were thermally prepared from Hura Crepitan L. seed shells. Zinc chloride (ZnCl2) and phosphoric acid (H3PO4) were separately used as the activating agents. The activated carbons obtained were characterized by determining the percentage yield, moisture content, ash content and percentage fixed carbon. The adsorption of methylene blue by the activated carbon was done using 0.1 to 0.5 g of the activated...

Author(s): E. W. Nsi, A. E. Akpakpan and U. D. Akpabio  

  • Article Number: 291D744

Corrosion inhibition properties of Commiphora africana (a. rich.) engl. gum exudates on mild steel in alkaline medium

The effect of Commiphora africana (CA) gum exudates on the corrosion of mild steel in 2.5 M Na2CO3 has been studied using weight loss (gravimetric) and thermometric methods at 303 and 333 K. Results obtained suggest that C. africana acts as a good corrosion inhibitor as the inhibition efficiency increased with increase in the concentration of the inhibitor. A decrease in the %I was observed with increase in temperature...

Author(s): Odoemelam S. A., Onukwube N.D. and Eddy N. O.  

  • Article Number: 2A30446

Comparison of heavy metals (Pb, Cu, Ni, Zn and Al) in human scalp hair: A case study of Port Harcourt and Okigwe

The proliferation of industries has led to increased presence of heavy metals in our environment and, humans are continually exposed to these heavy metals through their engagements in different industrial activities. The current study is designed to make a comparative assessment of the level of heavy metals (Pb, Cu, Ni, Zn, Al) in the hair scalp of humans living in industrialized and unindustrialized cities of Port...

Author(s): Ngwu Comfort M. and Onwu Francis K.  

  • Article Number: 4F93448

The effect of extracts of crinum jugas on the acute toxicity of the Vernonia amygdalina root poisoned guinea pigs

The toxicity of Vernonia amygdalina root and enzymatic activities of Crinum jagus extracts on guinea pigs were investigated. The cold water, n-hexane, ethyl acetate and methanol extracts were used to evaluate the effect of VA root poison on the aspartate transaminante, alanine transaminante and alkaline phosphatise enzymes activities in the serum/liver of guinea pigs. No death of guinea pigs were recorded neither in the...

Author(s): Ogbuanu Cyril C., Amujiogu Steve N., Nwagu Lauretta N., Chime Charlse C. and Arinze-Nwosu Uche L.  

  • Article Number: 4F3C450

Antibacterial and antioxidant activity of Justicia spicigera extracts: Activity enhancement by addition of metal salts

Justicia spicigera was screened for its phytochemicals. The results showed the presence of alkaloids, flavonoids, tannins, phenols, saponins and steroids. Extracts of J. spicigera prepared with solvents of different polarities (n-Hexane, Chloroform, Methanol, and Ethyl acetate) was used to analyze the antibacterial properties in the absence and in the presence of metal salts. The antioxidant activity was analyzed using...

Author(s): Ohenhen O. N., Njoku P. C. and Igara C. E.  

  • Article Number: B06A952

Delonix regia extracts as non – toxic corrosion inhibitor for acid corrosion of mild steel in HCl solution

The corrosion inhibition properties of Delonix regia leaf extract (DLE), flower extract (DFE) and seed extract (DSE) in 0. 5 M HCl solutions were studied using weight loss technique. D. regia extracts inhibited the corrosion of mild steel in HCl solution. The inhibition efficiency increased with increasing concentration of the extracts at 30°C. The seed extract (DSE) was found to be more effective than both the leaf...

Author(s): Olusegun   K. Abiola, Abdulraman O. C. Aliyu and Suleiman Muhammed

  • Article Number: 8666D54

Synthesis, characterization and biological activity of new mannich base 1-((4-chlorophenyl)(2,5-dioxopyrrolidin-1-YL) methyl) urea

A new mannich base 1-((4-chlorophenyl)(2,5-dioxopyrrolidin-1-yl)methyl) urea has been synthesized from the condensation of succinimide, 4-chlorobenzaldehyde and urea. The compound has been characterized on the basis of elemental analysis, FTIR, 1HNMR 13C NMR, and Mass spectroscopy. The compound was tested for its antimicrobial activity against Pseudomonas aeruginosa, Staphylococcus aureus, Aspergillus niger  and...

Author(s): M. R. Abdullahi and S. Rajeswari  

  • Article Number: 1106B56

Assessment of physicochemical properties of clay samples obtained from Ashaka, Potiskum and Tango (NIGERIA) and a commercial bentonite obtained from Kofar Ruwa Market

Samples of clays suspected to be bentonite were obtained from Ashaka, Tongo and Potiskum, Nigeria and a commercial bentonite obtained from Kofar Ruwa market, Kano State were investigated for some of their physicochemical properties. These determinations were carried out on the wet beneficiated clay samples. The results were compared with results obtained from other studies on bentonite clays. The moisture content, pH,...

Author(s): Abdullahi S. L. and A. A. Audu  

  • Article Number: 4AF7158

Nanotechnology and implementation in natural products green chemistry processes

Nanotechnology, already showing great potential for application in environmental protection has been suggested to be able to provide green and effective alternatives for the management of insect pests in agriculture and post harvest processes. This is in an effort to reduce the hazardous effects of previously used non-biodegradable substances on humans and the environment. The paper will discuss emerging...

Author(s): M. M. Adeyemi, P. E. Omale, O. A. Olawuyi, A. Ngokat and A. Bhattacharya  

  • Article Number: E287F60

Characterization of beach water and its effect on nearby groundwater quality in Eti-osa and Ibeju-lekki local government areas, of Lagos State, Nigeria

Groundwater in Eti-Osa and Ibeju-Lekki local government areas of Lagos state were investigated for the effects of beach water influence on adjacent aquifers. Beach water and Borehole samples at distances of 40-50 m and 100-150 m from adjacent beaches in the study areas were taken and analysed for pH, Temperature, Electrical Conductivity, Total Dissolved Solids, Salinity, Ca2+, Mg2+, K+, Na+, HCO3- , NO3-, Cl-SO42-,...

Author(s): V. E. Agbazue and B. U. Ukazu  

  • Article Number: 2A7A362

Production of methylester (biodiesel) using melon seed oil as a raw material

The production of the methyl ester was carried out using raw melon seed oil as a raw material through the process of transesterification. The most important variable which influences the transesterification reaction time and conversion were put into consideration.   Key words: Biodisel, transeterification, methyl ester.  

Author(s): Agbo I. U. and Onyezeka E.G.  

  • Article Number: 044D564

Sorption kinetics of methylene blue on adsorbents derived from Delonix regia seed pods and Vigna subterranea fruit hulls

Kinetics of methylene blue adsorption on adsorbents prepared from Delonix regia seed pods (DRSP) and Vigna subterranea fruit hulls (VSFH) were investigated. Characterization of the adsorbents indicated that the points of zero charge (PZC) of DRSP and VSFH are 5.30 and 4.80 respectively. Optimum removal efficiencies of methylene blue by DRSP and VSFH occurred at pH of 8.00 and 11.00 respectively. For both DRSP and VSFH,...

Author(s): L.K. Akinola, Ali Ibrahim and Mohammed Mohammed

  • Article Number: A371B66

Groundwater qualityin Okitipupa township of Ondo State, Nigeria

This study was conducted to assess the quality of groundwater in Okitipupa (Okpa), the head quarter of Okitipupa local government area of Ondo State, Nigeria. Physico-chemical parameters were determined using standard methods while metals were determined using Atomic Absorption Spectrophotometer. The pH range (Mean ± SD) are 8.5- 11.2 (10.1 ± 0.9), the Electrical Conductivity range are 1095- 1932 (1503...

Author(s): Ayedun H. and Ediagbonya T. F.  

  • Article Number: 3EACE68

Isolation and characterization of 2, 4-dihydroxycinnamic acid from the stem bark of Adina microcephala Delile

Adina microcephala which belongs to the family Rubiaceae is widely distributed in Africa. It is used in African traditional medicine for the treatment of diarrhoea and other stomach or digestive tract problems. A microcephala stem bark was collected, identified, dried and pulverized. The pulverized plant material was subjected to Soxhlet extraction using petroleum ether (60-80°C), chloroform, ethyl acetate and...

Author(s): S. G. Ayo, J. D. Habila, J. I. Achika and O. O. Akinwande  

  • Article Number: 47BCC70

Gas chromatography–mass spectrometry (GC-MS) analysis of leaf, stem-back and root extracts of Alstonia boonei

Medicinal plants have had a crucial role in human culture and civilization. Alstonia boonei De Wild is a medicinal plant commonly found in West African and is popularly known as God's tree. The plant parts have been traditionally used for painkiller, antimicrobial, antimalarial and antidiabetic which have also been proved scientifically. Previous studies revealed little information on phytochemcial components of A....

Author(s): Babatunde O., Godwin R. E. and Wahab N. O.  

  • Article Number: 9E02872

Kinetics of the photocatalytic degradation of chlorendic acid (flame retardant) in aqueous TiO2 suspension

Kinetics of the Photocatalytic degradation of chlorendic acid [1, 4, 5, 6, 7, 7-hexachlorobicyclo-(2, 2, 1)- hept-5-ene-2, 3-dicarboxylic acid], a flame retardant found in the environment, has been investigated in aqueous heterogeneous solutions using TiO2 (Degussa P-25) powder in the presence of artificial ultraviolet radiation and oxygen. High-performance liquid chromatography (HPLC) with detector set at 221 nm was...

Author(s): Boisa N. and Obunwo C. C.  

  • Article Number: 3597E74

Low cost/waste catalyst for fatty acid methyl ester production

Non-edible crude karanj (Pongamia pinnata) oil (CKO) with high free fatty acid (FFA) content was used as effective renewable feedstock for fatty acid methyl ester (FAME) production. Calcium feldspar clay, a rare compositional variety of plagioclase clay, a low cost, abundant earth resource, containing over 90% CaO and belonging to the class of anorthite clay was used as heterogeneous catalyst in direct conversion of...

Author(s): M. O. Ekeoma, P. A. C. Okoye and V. I. E. Ajiwe    

  • Article Number: 2AEBF76