Mohite B.S.,Shivaji University |
Madane N.S.,Sathaye College
Research Journal of Chemistry and Environment | Year: 2015
A simple and selective method for the extraction and separation of thorium (IV) from L-histidine medium using dibenzo-18-crown-6 in xylene has been developed. Thorium (IV) was quantitatively extracted by 5×10-4M dibenzo-18-crown-6 in xylene from 5×10-4M L-histidine medium. The extracted thorium (IV) was stripped out quantitatively from the organic phase with 6 M nitric acid and determined spectrophotometrically with arsenazo (III) at 620 nm. The effect of concentrations of L-histidine, extractant, diluents, metal ion and strippants has been studied. The tolerance limits of various cations and anions were studied. Separation of thorium (IV) from other elements was achieved from binary mixtures. Using this method separation and determination of thorium (IV) in geological and real samples has been carried out. The method is simple, rapid and selective with good reproducibility (approximately ± 2%).
Ponkshe C.,Sathaye College
Nature Environment and Pollution Technology | Year: 2012
The 720 km long indented coastline of Maharashtra, that comprises the coastal districts of Thane, Raigad, Greater Bombay, Ratnagiri and Sindhudurg, is marked by the presence of major estuaries and narrow creeks. These coastal waters receive huge volumes of treated and untreated industrial waste, sewage, etc., thus depleting the water quality along the stretches. In the present study carried out at Mumbai, Dharamtar and Guhagar coast, it was observed that the Mumbai coast is highly affected showing low values of dissolved oxygen and high total dissolved content thereby affecting the productivity of the region.
Lokhande M.V.,Sathaye College |
Tajane S.T.,Sathaye College |
Tajane S.T.,Bhavans College |
George A.K.,Sathaye College |
George A.K.,SIES College
Asian Journal of Chemistry | Year: 2010
Complexes of La 3+, Pr 3+, Nd 3+, Sm 3+, Gd 3+, Tb 3+ and Dy 3+ with pyridine propanamine-γ-(4-chlorophenyl)-N,N-dimethyl-2-maleate have been prepared, structures of the complexes have been established on the basis of elemental analysis, magnetic moment, infrared, thermal analysis, X-ray powder diffraction and electronic spectra. The ligand is bonded through nitrogen of propanamine and nitrogen of pyridine with metal ions. The magnetic moment studies indicate that, it is slightly participation with 4f electrons in bonding. The X-ray powder diffraction studies indicate that, the unit cell is monoclinic and space group of complexes is C 2/m or P c/m. This ligand is anti-histaminic and active towards gram positive and gram negative bacteria.
Singare P.U.,Bhavans College andheri |
Lokhande R.S.,University of Mumbai |
Samant N.G.,Sathaye College |
Dhatrak M.R.,Ng Acharya And Dk Marathe College
Colloid Journal | Year: 2010
The thermodynamic measurements was carried out to study the selectivity of cation exchange resin Amberlite IR-120 in protonated form with respect to Mg2+, Ca2+, Sr2+ and Ba2+ ions in solution. The equilibrium constant K was calculated using the activity coefficients of ions in solution as well as in the resin. The K values calculated for the reacting systems increase with temperature that suggests the endothermic exchange reactions with estimated enthalpy values of 38.8, 20.6, 8.45, and 7.24 kJ mol-1, respectively. On the basis of calculated parameters, the selectivity of ion exchange resin with respect to various bivalent ions in the solution was predicted. The method used in our experimental work provides a basis for characterization of ion exchange resins, which can be promising materials for efficient separation of ions from industrial waste effluents. © Pleiades Publishing, Ltd., 2010.
News Article | January 20, 2016
A team of experts discovered ancient Buddhist caves at Mumbai National Park in India. They found a total of seven caves that they assume to be at least 2,000-years old. The caves are possibly dated between the 1st century B.C. and 5t to 6th century A.D. The caves served as shelters for monks, dubbed as Buddhist "viharas", thousands of years ago. One of the caves houses the remains of a "harmika", a stupa's top railing. A team composed of researchers from the Centre of Archeology, Department of Ancient Indian Culture, Sathaye College and Mumbai University, first discovered five of the seven caves in February 2015. "The newly discovered caves may have been older than the Kanheri Caves as they were simpler in form and they lacked water cisterns, which are found in the more evolved architecture of Kanheri," said Suraj Pandit, the one who led the team. "Moreover, we found monolithic tools which were prevalent in the 1st century BC. The absence of water cisterns also indicate that monks lived there in the monsoon," he added. The researchers discovered the seven new caves not by accident, but as a result of a comprehensive survey of the area. To be able to find these ancient caves, the team studied documentary topography and water resources. Ancient people constructed most of viharas near sources of water. Aside from that, they also studied Pali texts, which describe caves in the area of Rajgir, Bihar. The researchers studied areas and texts for three months. They began their exploration as soon as the forest department gave their permission. Two forest guards helped the team in exploring caves. "There were caves on either side of the waterfall - three on one side and two on the other. It was very clear these were excavated from the natural rock," Pandit recalled. "The smooth curve, the plastering, the door beams, the benches to sleep on, were all indications that these were man-made caves," he added. The team found five caves. After a day, another team of a magazine editor and a student of Buddhism at Sathaye College, found two more caves. Mugdha Karnik, head of Mumbai University's Centre for Extra-Mural Studies said that many people do not know the history and culture of the country. He believes that such discoveries will help people learn about their heritage and in turn, protect these structures from destruction posed by industrialization and construction of new buildings.
News Article | February 15, 2017
(PRLEAP.COM) February 15, 2017 - On an inspiring note, Rotaract District 3141 ends its week long celebration of spreading the word of Being Responsible. Rotaract Mumbai, in its 49th year, aimed at holistic development initiatives to flourish in reaching to masses and helping spread the social causes of Literacy, Child Development, Women Empowerment, The Joy of Giving and also empowerment of the Specially Abled as a part of this Youth Week.The Campaign involved a series of engagement activations all across the city in terms of Flash Mobs and Skits, each touching the 5 Thrust Areas and helping spread the word of Being Responsible. Rotaract has also picked the cause of having INDIA's Biggest Shoe Donation Drive where anyone can buy a pair of Shoes from us and our Team shall donate one for every purchase made.As a part of the Initiative, the Youth groups trooped up for daily sessions at various Municipal Schools teaching the students about the need for cleanliness and empowering them about how one needs to stand against 'what is wrong'. At the end of the Week, over 4000 Lives were touched amongst the school going children. The World Responsible Youth Week, in its 9th Year, aims at reaching to all the Age groups of people and hence have also decided to create Libraries and fund the Adult Literacy Programme adopted, with all the Cash proceeds that flow in as contribution towards the Cause.The message of Responsible Youth was put forward by a Mega Station Cleaning Drive as well, across multiple stations carried out on a Sunday Morning. Moreover, an entire day was dedicated to encourage Skill and Talent across the Underprivileged in the form of Public Speaking, Dance, Grammar etc. where the Team touched over 700 lives and helped make a difference.The Week also witnessed a Mega Quiz of the Under Privileged kids happening on the 18th January 2017 at the Gopal Sharma Memorial School, Powai.Rotaract Representative, Rtr. Rohan Dalmia says, "A sense of social responsibility is diminishing these days among the Youth and it is high time that we STOP BLAMING and START ACTING. World Responsible Youth Week 2017 was our Initiative to strengthen the Social Systems, thereby influencing the Youth, which highly influences the future of India. We shall keep doing activities like these to boost the Change in the Society and make a more Responsible World to live in."A special 2 Wheeler Rally was organised on the 29thJanuary 2017 from Kalanagar, Bandra Kurla Complex to Sathaye College, Vile Parle (E) from 10AM in association with Rotary in order to spread the need of Responsible and Safe RidingThereby, our District Chairman Public Relations, Rtr. Apurv Gangar, rightly says that "World Responsible Youth Week is one of the projects of RID 3141, which will not only create a buzz in the city of Mumbai but will also call for the wake up for everyone to be responsible to the human race that we belong to. Let's focus on adult literacy, child education, women being now entrepreneurs, working towards a clean Mumbai and a clean Nation to live in. Let's be Responsible!"The Chair Heads of the World Responsible Youth Week 2017 -Rtr. Darshan Pawani and Rtr. Bhaven Parmar feel- " It's utmost important to reach out to the Masses and touch lives spreading the word of Being Responsible. To us it is not just an initiative, it's a way of Life."This Initiative to Responsible Youth was supported by 28 Rotaract Clubs across Mumbai with almost 20 of the corporate houses supporting the Cause of World Responsible Youth Week 2017 and being socially responsibleAre you being Responsible and Supporting WRY 2017?