"Dye" Essays and Research Papers

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    Kaihara note

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    APU Case study Kaihara Co.‚ Ltd.1 -From a family business to the world leading company in Denim manufacturing- Prepared by Masanori Namba Takeshi Fujimoto Introduction Kaihara Corporation started as indigo Kasuri weaving manufacturing in 1877 and the establishment of the corporation was completed in the year 1893. The head office of the corporation is located in Fukuyama City of Hiroshima Prefecture. The corporation is a long-established business with years of experiences‚ now

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    Azo Dye Lab Report

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    The purpose of this lab was to synthesize indigo and an azo dye and to determine how effective each dye was to dye different types of fabrics. 0.168g of 2-nitrobenzaldehyde was dissolved into acetone along with 25 drops of distilled water and NaOH to synthesize indigo. The solution was filtered‚ and the solid indigo was placed into the filter flask to reduce indigo to leucoindigo with 10mL of 3M NaOH. The flask was heated along with sodium dithionite and distilled water added to the flask. Afiber

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    Purpose: The purpose of this lab is to find the amount of blue dye #1 in the blueberry pomegranate gatorade. Procedure: We created dilutions using stock solution(10mL stock/0 mL water‚ 8mL/2mL‚ 6mL/4mL‚4mL/6mL‚ 3mL/7mL‚ 2mL/8mL‚1mL/9mL‚ 0mL/0mL). Before we put each dilution in the SPEC 20‚ we put water in a cuvette and put it in the SPEC 20 so we could zero out the percent transmittance. We collected the percent transmittance of each dilution using the SPEC20 with a wavelength of 630nm.

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    Blue No. 5 Dye Analysis

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    Analysis 1. Examine the structures of the FD&C Red No. 40‚ Blue No. 1 and Yellow No. 5 dyes. What are the similarities and differences in the structures of the three dyes? a. Red No. 40‚ Blue No. 1‚ Yellow No. 5 contain carbon rings and NaSO3. Additionally‚ Red No. 40 and Yellow No. 5 are very similar‚ as they both contain one nitrogen double bond‚ a hydroxyl group‚ and no ions. Blue No.1 contains nitrogen and chlorine ions and N(C2H5)CH2. 2. In the Introductory Activity‚ the developing solvents

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    spectroscopy create graph to determine the concentration of dye in a sport drink‚ by creating series of standard dilutions of an FD&C Blue 1 Stock solution and measuring the percent transmittance of each dilutions. Results in each dilutions will be use‚ to determine the linear function among various functions (T‚ T%‚ log T‚ - logT) For a Beer’s law calibration curve. The produce provides a model for guided-inquiry analysis of the concentration of food dye(s) in sports drinks and other consumer beverages.

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    Blue Jeans

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    There’s More to a Pair of Jeans than You Thought Jeans are pants and a world icon for the casual look. It has been so far for decades. I t is known for its comfort and many different styles of fitting. It’s now available in many different colours but perhaps the most famous one is blue jeans. There’s more to a pair of jeans than you thought. Most of you probably think that jeans are just made in factories by machines‚ but that is certainly not the case. For starters‚ the brass wire that makes

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    Uttarakhand Cloud Burst

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    Company Profile 1 E veryone at Aarvee Denims & Exports Ltd……… From management that is in tune with international fashion demands to the shop-floor worker is highly responsive to your need to work with a partner who understands and provides a supportive single source solution to all your denim needs. C ollaborative research in creating and manufacturing new‚ exciting combinations and finishes in denim allows you to morph your sensational new ideas into revolutionary new products. Our

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    Determining the Concentrations of Red Dye in Sodas Abstract The use of red dye #40 is common in various soft drinks today. The labels on these beverages do not specify how much dye we are consuming. We did this experiment to find out which soda uses the most dye. Using a spectrophotometer‚ we measured how much light is absorbed by various known concentrations of red dye. After collecting this data‚ a standard curve was made that correlated the concentration of red dye #40 to its absorbance rate. Our

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    Separations: Chromatography of M&M and Ink Dyes Almost all substances we come into contact with on a daily basis are impure; that is‚ they are mixtures. Similarly‚ compounds synthesized in the chemical laboratory are rarely produced pure. As a result‚ a major focus of research in chemistry is designing methods of separating and identifying components of mixtures. Many separation methods rely on physical differences between the components of a mixture. For example‚ filtration takes advantage of substances

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    demonstrated that the color of a given food dye depended on which light was transmitted in the visible spectrum and which light was absorbed. A quantitative measurement of the absorbance spectrum of each food dye was obtained through spectrophotometry.1 Through this method‚ we determined that the wavelength of maximum absorbance of a given food dye was directly correlated to the color of that food dye. Further‚ darker food dyes absorbed more light than lighter food dyes (Table 1). The relationship between

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