Cobalt

As the dependence on lithium batteries increased with an elevated demand for clean energy, it became increasingly important to consider the effect of these batteries on the environment. Nickel manganese cobalt oxide (NMC) made up many of these batteries and could dissociate in aquatic environments. Prior experiments, such as Hang et. Al. 2016, reported detrimental effects of dissociated NMC on aquatic microorganisms.1 In the first part of this project, the objective was to explore and develop an effective method to measure nickel (Ni) and cobalt (Co) concentration spectrophotometrically. This step was crucial for the second part of the project, which was to quantitatively analyze the impacts of glucose on the dissolution of these metal ions. The scope of this project could only focus on the effect of one variable; whether in fact, many other variables such as pH, salinity, and phosphate ions could also affect the dissociation of NMC particles. However, by focusing on one variable at time, a more general hypothesis could be drawn and utilized in the treatment of waste batteries. Background information on how glucose could form complexes with metal ions were studied from the Dolezal article. Even though the study was conducted on mannitol, glucose and mannitol…

the concentration of the cobalt solution, or CO(NO3)2, and the absorbance of the wavelength. As it was impossible to measure the true standard curve, the data points and subsequent graphs demonstrated the qualitative information collected and the trend of these values. The calibration curve closely resembled a straight line, with only minimal deviations in either direction. This indicated that the solutions examined and the data attained had a low percentage of error and high accuracy. As…

Cobalt: The element Cobalt it is located on the periodic table, Group 9. Cobalt is the 27th element on our Periodic Table. It is a chemical element, it has a density of 8.9 grams per cubic centimeter. Cobalt has a boiling point of 3,100 degrees Celsius (5,600 degrees Fahrenheit). Cobalt’s symbol is Co, The atomic # is 27 so the protons and electrons are 27 as well. Cobalt has an atomic mass of 59 and 32 neutrons. The melting point is 2,719 degrees Fahrenheit. This element was discovered in…

Child labor is still being used in parts of The Republic of Congo to mine cobalt, an important ingredient in phones, laptops and other electronics. These children have to work in hazardous areas where they are exposed to chemicals that can cause cancer, lung disease, and other diseases. Daily they have to go deep into the mines without any decent safety. Cobalt is found with dangerous metals that can cause kidney damage and cancer. In the past, there have been many accidents, such as landslides…

What can stop cancer? Cobalt-60? How nuclear medicine is helping an individual and society at large. Can you imagine that the orderly process of replacing damaged cells into new cells in your body stops? This is what happens with people who get cancer and if their treatment is not done fast, it can lead to death. Gamma knife therapy uses cobalt-60’s gamma radiation to destroy cancerous growth. In this paper, I will reflect on the research on cobalt-60 and its impact in the field of cancer,…

This week we have been assigned the task of evaluating the quality system that was used by General Motors during the recall of the Chevy Cobalt. A switch in an area of the manufacturers design caused the corporation to be in the spotlight unexpectedly. The public wanted answers and GM was deliberate in their approach to settling the matter. This essay will shed light on the perceived quality structure used in this case as well as my thoughts and opinions on whether or not GM used the proper…

A radioactive isotope an element with different masses meaning the neutron to proton ratio is uneven which makes the nucleus unstable and also removes energy by releasing radiation in the form of alpha, beta, and gamma rays. Radioactive isotopes have a high pertinence in the medical field especially for cancer. Cobalt-60 is a radioactive isotope that is widely utilized as a radiation source to suppress the development of cancer. Cobalt-60 therapy is used to let the doctor give higher doses of…

Objective The purpose of the experiment is to synthesize multiple cobalt complexes with various ligands and explain the ligand field transitions of these complexes using Ultraviolet-Visible (UV-Vis) spectroscopy. The experiment provides insight into specific colors of certain molecular species and respective bonding information. Introduction Transition elements are defined by the IUPAC as atoms that have an incomplete d-subshell, most commonly referring to the d-block.1 When transition metals…

of solution required to produce a reaction due to the presence of more molecules and a higher frequency rate, therefore less of the substance is needed to cause an equilibrium shift. 2. When you add 6.0 M NaOH into the iron (III) thiocyanate ion equilibrium system, the concentration of Fe+3 ion decreases. This causes the equilibrium to favour the reactants, which explains the observed colour change of the solution. 3. If the hydrated cobalt (II) ion complex was refrigerated, the equilibrium…

approximately 1.0-1.3g of the following metal compounds: cobalt (II) chloride hexahydrate, cobalt (II) nitrate hexahydrate, cobalt (II) thiocyanate, erbium chloride hexahydrate, or palladium (II) acetate. The sixth flask was reserved as a control and only contained PDB. Salcha-1 was incubated on an Innova 5000 shaker at 135rpm for three weeks at room temperature. Fungal Compound Extractions from Salcha-1 and Data Analysis To generate crude extract, approximately 400mL of ethyl acetate was…