phase by a solid-phase synthesis method. The blown-up parameter confirms the feasibility for industrialization. Having exchange property with acid and base together. The resulting resins show good properties for the removal and even recovery of heavy-metal ions from their aqueous solutions or wastewater [33]. The Na form of two chelating ion exchange resins Chelex 100 (Bio-Rad) and Amberlite IRC 748‚ both of which have iminodiacetic acid function group‚ was used to exchange Cu2+ and Zn2+ from
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effect of heavy metals lead and cadmium (0.05 mM and 0.3 mM) on growth and antioxidant enzymes of seedlings of 2 mung bean genotypes (NM 19-19 and Azri mung-2006). Results revealed that germination percentage and seedling length decreased when compared with the control for both genotypes. However‚ seedling length and germination percentage was better in NM 19-19 as compared to Azri mung-2006. Elevated levels of protein were observed under metal stress in both genotypes. Heavy metals induced oxidative
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Case: Curled Metal Inc. (CMI) Introduction Curled Metal Inc. originally sold metal as a finished good but has later developed its business concept to transforming metals into high value added manufactured products. Early in 2008‚ the company was about to launch a new product‚ which could revolutionize its business‚ setting a new standard in the pile-driving market: CMI cushion pads. However‚ this product launch poses key strategic issues to the company‚ ranging from assessing manufacturing capacity
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Submitted: July 4‚ 2015 Date Performed: July 4‚ 2015 Lab Section: Chem-181DL1 Course Instructor: Prof. Amal Bassa Purpose The purpose of this experiment was to perform and observe the flame tests of some alkali and alkaline earth metal ions. Procedure To begin I placed approximately 0.5 mL of sodium nitrate in a well of the 24-well plate. I then placed approximately 0.5 mL of the remaining 6 solutions and the unknown in 7 other wells of my well plate. Then taking a cotton swab‚
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4/29/2013 5.1 Lab Report - Identification of Metallic Ions TITLE: LAB 5.1 IDENTIFICATION OF METALLIC IONS PURPOSE: In this lab we are learning how to observe and perform “flame tests”‚ of alkali and alkaline earth metal ions. We will use basic lab equipment provided in our Labpaq‚ and follow all safety precautions in this lab. From reading the discussion and review‚ we understand that the normal configuration of the electrons is called “the ground state”. We understand that they are
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Title: Specific Heat Capacities of Metals Experiment Date: 3/28/2012 Report Date: 4/4/2012 Purpose: The purpose of the lab is to measure the specific heat capacities of aluminum‚ steel and brass. Theory: The amount of heat (ΔQ) required to change the temperature of an object is proportional to the mass (m) of the object and the temperature change (ΔT) of the object. ΔQ= cmΔT where c is called as the specific heat capacity of the material. In the calorie units system the unit of quantity
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Metal Works Case study Project Summary- Metal-Works is a manufacturer of steel products such as steel safety boxes and cabinets. At present‚ the company has two existing manufacturing facilities in Delaware and Iowa. The new appointed CEO of Metal-Works Corporation wants to re-configure the network for the company. The present configuration is believed to not be optimum. As an initiative to improve this situation‚ the CEO has decided to hire a consultant to analyze the current distribution centers
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melt or even vaporize metal. The melted metal is washed away by the dielectric. The sparks cut small‚ spherical shaped‚ cups into the surface. The surface is covered with recast (melted and resolidified) metal. Thus‚ there will always be a hard‚ brittle‚ surface layer on EDM part surfaces. What process would you recommend to make many small holes in a very hard alloy where the holes will be used for cooling and venting? Again‚ LBM is good for small holes in hard metals and since they are being
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The “Cumber-Coil”: A Revolutionary Product for the Value-Conscious SITUATION ANALYSIS Cumberland Metals Industries developed a new type of cushion pad for pile drivers made of curled metal. The 11.5 inch “Cumber-Coil” was tested by two different companies on two different projects and was found to far exceed the performance of the existing market-dominant product‚ the asbestos pad. The Cumber-Coil weighed half what the asbestos pad did and boasted a 33% faster driving time‚ 60% reduction in
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Topic: Silver is an ancient mineral that dates back since prehistoric times. One thing that makes silver so special is that it was one of the first five metals that we started to use. Silver is found in almost every electronic device there is‚ and as time progresses the usage of it increases‚ unfortunately the amount there is left decreases. How is it created or source of the mineral? (5) Silver is not originated from Earth‚ as it happens it came from space. Many elements were formed in the big
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