Iron oxide

Not so long ago, May 1, 2014 Kevin who is a research scientist, studied many beauty products like a bar of soap in the shower. This time he did research on science behind tattoos. He found out that present days’ companies used pigments that are made of ion oxides (rust) that account for the black, red and browns. The formulas are Iron Oxide Red: Fe2O3, Iron Oxide Black: FeO · Fe2O3, and Iron Oxide Yellow: FeO(OH). For more exotic colors, heavy metals were used such as cadmium (red, orange, yellow), zinc (yellow, white), and cobalt (blue). Zinc oxide an inorganic compound with the formula ZnO. ZnO is a white power that is insoluble in water, and it is widely used as an additive in numerous materials and products including rubbers. Cobalt metal formula: CoAl2O4. Cobalt used in electroplating because of its attractive appearance, hardness and resistance to corrosion ("IRON OXIDES." FAO JECFA…

3.1.4 HypoSludge The production of Hypo sludge is estimated about 35% of the daily production in the paper industries. These wastes are used as an ingredient of cement manufacturing in wet process. But present days we use dry process for manufacturing of cement so hypo sludge are not useful for manufacturing of cement. The paper industries are dumped these waste nearby any pit or waste land. It leads to effects the environmental issues. Regarding these situations hypo sludge are…

This is what people refer to when they talk about smog. According to the Webster dictionary, smog is “a photochemical haze caused by the action of solar ultraviolet radiation on atmosphere polluted with hydrocarbons and oxides of nitrogen especially from automobile exhaust” (Dictionary, 2016). Because of our atmospheric pollution, when smog is present and it begins to rain, the rain traps the chemicals and brings them down to the earth’s water…

Carbon Dioxide, is a natural occurring chemical compound that consists of one carbon atom and two oxygen atoms. On Earth carbon dioxide is released into the atmosphere from respiration, combustion of coal or hydrocarbons, and respiration. However most of the carbon dioxide that is released into the atmosphere is removed by organisms that conduct photosynthesis. Photosynthesis is the processes in which organisms, such as, plants, algae and cyanobacteria (bacteria that obtain their energy from…

As of September 2016, over 260 million Americans have consumed at least 1 bag of potato chips. This means that at least 24375 tons of chips have been eaten in the past year. However, that calculation would only be true if each bag contained at minimum its labeled amount. When opening a bag of chips, it is easy to assume that the labeled amount is false due to the amount of empty space inside. Thus, the goal of this paper is to explore this idea and document the experimentation that follows in…

title>INTRODUCTION Optical constants (complex refractive index n, complex dielectric function ϵ, and reflection and absorption coefficients R and α) of materials are of great importance for optical metrology in the semiconductor industry.1,2 A high-performance complementary-metal-oxide-semiconductor process flow with 11 layers of metal requires about 75 photolayers and may contain up to 100 thickness measurements, most of them performed using spectroscopic ellipsometry.3 This technique has…

Recent research shows that AgNPs enhance luminol fluorescence and chemiluminescence by acting as a catalyst with hydrogen peroxide. When AgNPs interact with hydrogen peroxide they cause the peroxide to degrade into superoxide and hydroxyl radical, which also react with luminol to form 3-aminophthalate (Equations 2-5) [13]. The further degradation of hydrogen peroxide into other reactive oxygen species promotes higher fluorescence intensity. Figure 5 shows the increased fluorescence intensity…

demands of the continuous casting. In order to coordinate the properties of mold flux, many oxides are used in the mold flux – especially the similar oxides such as Na2O and Li2O, and MgO and CaO. This can micro – adjust the properties of mold flux. The distributions of silicate anionic species (Qn) were obviously different whereas the equimolar substitution of CaO for MgO (and Na2O for Li2O) are at a fixed NBO/T. The degree of polymerization of molten slag with a same NBO/T is same except the…

that they had distinct soil parameters in terms of total organic carbon (TOC), Fe oxide, Al oxide, pH which have been observed as important controllers for bioaccessibility of As, Cd and Pb reported in previous chapters. MGA soils contained a high amount of TOC (8.37 %), Fe oxide (12.49 g kg-1), Al oxide (12.6 g kg-1) whilst few TOC (1.48 %), Fe oxide (0.64 g kg-1) and…

A few weeks later, I had written my book. I had some more mysteries that confused me. 1. Why are people’s marriages so weird? 3. Why was it so difficult to train Sandy? 5. Why did everyone get mad when I decided to practice Physics in the kitchen? I believe that the reason why mother didn’t love my father was because of his aggressive personality. When I didn’t listen to him, he easily lost his temper, but things have changed now. First, father asked mother if she could go out for dinner with…