Anorganische Chemie
A Teacher's Guide on Complexometric Titration
Lesson Plan from the year 2019 in the subject Chemistry - Anorganic Chemistry, grade: A, , language: English, abstract: This laboratory material seeks to help fresh teachers of the UG-PG departments as well as self studying students. It eliminates the difficulties which are common in the starting stage of a teaching carrier regarding solution preparations in various concentrations, calculations and procedures for the experiments and the practical set up.Moreover, the work is helpful to understand the role of reagents/chemicals used in experiments, reactions, conditions and structures. The work will provide all the information related to the complexometric titrations.
Die Schwefelsäure - Eigenschaften, Gewinnung, Nutzung
Studienarbeit aus dem Jahr 2010 im Fachbereich Chemie - Anorganische Chemie, Note: 1,0, , Sprache: Deutsch, Abstract: Diese Arbeit geht auf folgende Punkte im Zusammenhang mit der Schwefelsäure ein: Bau, Chemische/Physikalische Eigenschaften, Vorkommen, Herstellung (historische Verfahren, Kontaktverfahren, Doppelkontaktverfahren), Verwendung in der Industrie.
Herstellung und Charakterisierung bleioxidfreier Piezokeramiken im System Kalium-Natrium-Niobat (KNN)
Diplomarbeit aus dem Jahr 2010 im Fachbereich Chemie - Anorganische Chemie, Note: 2,0, Hochschule Zittau/Görlitz; Standort Zittau, Sprache: Deutsch, Abstract: Werkstoffe auf Basis von Blei-Zirkonat-Titanat (PZT) sind momentan die wichtigsten Vertreter der Piezokeramiken und werden in einer Vielzahl von Anwendungen wie Aktoren, Sensoren und Wandler kommerziell eingesetzt. Seit Beginn der 1990-iger Jahre gibt es getrieben durch ein wachsendes Umweltbewusstsein international verstärkte Anstrengungen, das PZT durch bleioxidfreie Alternativen zu ersetzen. Die intensive Suche nach alternativen Werkstoffen auf dem Gebiet der Piezokeramiken spiegelt sich in der großen Anzahl von Publikationen in den letzten Jahren wider. Als besonders aussichtsreiche Kandidaten stellten sich dabei Zusammensetzungen basierend auf Kalium-Natrium-Niobat (KNN) heraus.In der vorliegenden Arbeit wurden Untersuchungen zur Herstellung von modifizierten KNN-Keramiken durchgeführt mit dem Ziel, diese Werkstoffe für das IKTS zu er-schließen. Dabei ging es um die Erarbeitung einer Synthese- und Verarbeitungstechnologie, mit deren Hilfe Keramiken mit reproduzierbaren Eigenschaften herstellbar sind, die dem Stand der Technik entsprechen.
Synthesis, Characterization and Antibacterial Activity of AgNPs by Using Leaf Extract of Acmella Oleracea
Master's Thesis from the year 2025 in the subject Chemistry - Macromolecular Chemistry, Polymer Chemistry, grade: A, , course: M.Sc., language: English, abstract: Nanotechnology in present era gaining value due to the capability of modulating metals into their nanoparticles due to this our work reports on the green synthesis of metal nanoparticles which has proved advantageous over chemical synthetic methods due to its low cost and environmental compatibility. The Phytochemicals present in the leaf extract act as capping and stabilizing agents for AgNPs that can rapidly reduce silver ions (Ag+ to Ag) and resulted in a color change indicating the formation of silver nanoparticles. Synthesized silver nanoparticles were characterized by UV-Vis spectrophotometer, Field Emission Scanning Electron Microscopy (FESEM), and Fourier Transform Infra-red Spectroscopy (FTIR) techniques.The UV-Vis spectra showed a peak at 459nm. FESEM revealed that the synthesized silver nanoparticles are spherical and circular in morphology and the overall size is between 36-45nm. FTIR spectroscopy analysis showed the presence of alkaloid, polyphenols and amide groups likely to be responsible for the green synthesis of silver nanoparticles. The synthesized nanoparticles showed efficient antibacterial as well as antioxidant activity. The effect of the increase of metal salt solution was also studied. The study revealed the formation of dendrites with the increase in metal salt concentration. This study focuses on a cost-efficient, eco-friendly and safe technique for the synthesis of silver nanoparticle using leaves of medicinal plants.
The Chemistry of Low Valent Sulfur Compounds in the S-H2O System
Master's Thesis from the year 1991 in the subject Chemistry - Anorganic Chemistry, University of Minnesota - Twin Cities, language: English, abstract: The primary goal of this thesis is to analyze geometrical trends of thermodynamic and related functions of low valent sulfur polymer groups in order to determine the thermodynamic properties of these species.
The Fundamentals of Inorganic Polymers
Seminar paper from the year 2021 in the subject Chemistry - Macromolecular Chemistry, Polymer Chemistry, , course: Chemistry (SH 453), language: English, abstract: Unravel the hidden world of macromolecules beyond carbon! Delve into the fascinating realm of inorganic polymers, materials with properties that defy conventional plastics and resins. This comprehensive exploration dissects the fundamental differences between organic and inorganic polymers, revealing their contrasting behaviors in flammability, biodegradability, and thermal stability. Discover the unique synthetic pathways and sources of these often-overlooked materials, and understand why they are essential for a wide array of cutting-edge applications. Journey into the heart of silicon-based polymers - silicones - and uncover the secrets behind their remarkable water repellency, high-temperature resistance, and versatile uses in industries ranging from construction to cosmetics. From the initial production of alkyl or aryl substituted silicon chlorides to the final polymerization of silicols, this guide meticulously details the three-step preparation of silicones, illuminating the intricate chemistry involved. Explore the environmental impact and rising importance of biodegradable polymers as sustainable alternatives. Whether you're a seasoned materials scientist or a curious student, this book provides a clear and insightful understanding of the diverse world of polymers, emphasizing the often-underestimated potential of inorganic macromolecules and silicon-oxygen bonds. Understand the nuances of polymerization, the role of monomers, and the impact of these materials on our world. Discover the countless applications of polymers, from everyday household items to advanced technological components. Embark on a journey that redefines your understanding of material science and unlocks the secrets of these extraordinary compounds. Explore the contrasting characteristics of organic and inorganic polymers, their solvent solubility, and their varying strengths. Discover the future of materials, from the lab to real-world applications, as it is impacted by these materials. This is your guide to understanding the next generation of polymer technology and its profound impact on industries worldwide. Learn how their unique attributes are paving the way for unprecedented innovations and sustainable solutions.