The objective of this experiment was to synthesize indigo and azo dyes and use them to observe their effectiveness in dying natural fabrics. The results of the experiment are summarized below. Weights Starting materials: • Aniline-3-sulfonic acid: 0.493 g • Salicylic Acid: 0.398 g Azo Dye: 0.515 g % Yield: (actual/theoretical) x 100 • Actual 0.515 g • Theoretical: o Aniline-3-sulfonic acid: (0.493 g/173.19g/mol) = 0.00285 mol o Salicylic acid: (0.398 g/152.15 g/mol) = 0.00262 mol o Limiting Reagent:
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Shui Fabrics Case I. Statement of the Problem The company wants to improve or increase the annual return on investment. 10 years ago‚ the company ventured to China to lower labors costs of Rocky River Industries. It suffered money losing from the day it started its operations and interference from the Chinese government. Currently the annual return on investment of the company has been 5% for the past 3 years
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of solvent extraction‚ also known as liquid-liquid extraction‚ a method of separating two materials with different physical and/or chemical properties. Two methods of evaporation will be used to finally determine the concentration of impurity- one using an explosion-proof hot-plate‚ and one using a rotovap. III. Theory Fig. 1a+1b. Figure 1a shows how water and oil separate in the separatory funnel‚ while figure 1b shows the actual apparatus. Liquid-Liquid extraction is a versatile and dependable
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LIQUID CRYSTALS Introduction What are Liquid crystals ? Its History & Discovery Any of various liquids in which molecules are regularly arrayed like a solid crystal along one or two dimensions‚ but are free in the other dimensions as with typical liquids. Liquid crystals often display unusual and often manipulable optical properties such as anisotropic scattering. They can be divided into two classes‚ Thermo tropic(nematic‚ chiral nematic‚ and smectic.) and Lyotropic. Transitions to thermotropic
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for granted or consider rather ordinary‚ but for some‚ lathering up can be a treasured part of a morning or nightly routine. Scented or unscented‚ in bars‚ gels‚ and liquids‚ soap is a part of our daily lives. In the United States‚ soap is a $1.390 million (US$)* industry with over 50 mass market brands. But in some markets the sales potential for soap is only beginning to be realized. At the end 2000‚ soap was a $1.032 million (US$)* business in India. IFF’s marketing experts offer the following
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certain fluid. In this experiment two solutions are used. According to the definition of viscosity mobile liquids have a relatively low viscosity. Fluidity is the reciprocal of viscosity‚ given as equation 1: F=1/ η. Fluidity is advantageous because solutions of mixed solutions of nonassociating liquids are roughly additive. In this experiment binary solutions are used‚ so if each pure liquid has fluidities Fa and Fb‚ the fluidity of a mixture is given by: Equation1 (Halpern‚ 17-3).
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Panno del Casentino (Casentino cloth) is a traditional wool fabric‚ typical of Casentino. The fabric is fulled (felted) to make it waterproof and teaseled to obtain a hairy side.The “coarse cloth”‚ got from the valley sheepshearing‚ was popular for its high wear and weather resistance and it was suitable for people who had to live travelling or spending mostly the day in the open air. The lock‚ typical of Casentino cloth clothes‚ represents a functional double layer‚ with cold and rain protection
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Segmentation and Target Market Paper Christopher Reynolds MKT/571 November 11‚ 2013 Bernie Cerasaro Segmentation and Target Market The flooring industry is a very competitive one‚ and this paper will discuss the market segmentation within the flooring industry while also determining the target market of O’Boyle Flooring. Market segmentation is a tool that is used to identify ways to improve the services of the company while growing revenues (Zuckerman‚ 2002). Market segments fall into
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Liquids & Solids Pre Lab Questions: 3pts 1. What are the learning goals of this lab? The learning goal of this experiment is to view and experience the melting point and boiling point of different substances. 2. Why is acetamide not allowed in contact with your skin? What precautions does one have to take to work with this chemical? Acetamide is a carcinogen‚ which can cause cancer. Therefore‚ it should not be allowed to come in contact with a person’s skin. Any person working with this chemical
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Cotton fabric printing with reactive dye using guar gum A 3-per cent concentration of Guar Gum will be the better alternative for large-scale printing of cotton in home furnishing industries‚ find Priyanka Kesarwani and Archana Singh. Cotton is the world ’s most used fibre. It is cool‚ soft‚ comfortable and the principal clothing fibre of the world. Its production is one of the major factors in the world ’s prosperity and economic stability. In the textiles industry more than 78%
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