Dye

    Page 1 of 50 - About 500 Essays
  • Food Dye Lab Report

    Determining Food Dye Content Lab was to identify the food dye coloring in green apple Gatorade, and determine the dye’s concentration to ultimately recreate a solution containing the same concentration of dyes as the original. To determine the concentration of the dyes present in the green apple Gatorade, a spectrometer was used to measure the wavelengths and absorbance values for the given dyes. A sample of the green apple Gatorade was tested in the spectrometer to measure its absorption and compare the values collected to stock dyes provided in lab. The data displayed that the green apple Gatorade contained blue-1 food dye because the Gatorade’s wavelength at peak one was 422.3 Nm, and blue-1 food dye’s peak one was 423.7+-.1.5…

    Words: 708 - Pages: 3
  • Azo Dye Lab Report

    INTRODUCTION Dyes exist in natural and synthetic forms in the world; they are used for the purpose of changing colors of different materials. William Perkins first discovered the azo dye on accident after adding alcohol to a product in the lab. They have the ability to do this due to the molecules of the dyes possessing conjugation. Conjugation is defined as p-orbitals overlapping which causes the electrons within to be delocalized; it is also seen in molecules and compounds that contain…

    Words: 1211 - Pages: 5
  • Negative Effects Of Tartrazine: Lemon Yellow Azo Dye

    Tartrazine Tartrazine is a chemical that contains numerous positive and negative effects. It is a lemon yellow azo dye mainly used as a food coloring. It has no taste, but s commonly used in foods we eat. Tartrazine’s chemical symbol is C16H9N4Na3a2. The molar mass of Tartrazine is 534.3g/mol. Also, Tartrazine’s melting point is 300 c. It is often used in bakeries on frosting and other pastries to add a splash of color into it. It is extensively used for a variety of different products. But, if…

    Words: 955 - Pages: 4
  • Candle Lab

    the time period given. Aim My aim for this project is to find out if dye in candles can affect the speed rate they burn in. I will test one white candle with a high dye pigmentation candle such as blue or purple against white. Then I will measure…

    Words: 942 - Pages: 4
  • Hair Dyes Essay

    pigments that many cultures continue to use today. In Western culture, hair dye usage has increased steadily from the 1960s, and is now widely popular, as well as socially accepted. Despite the significant percentage of the human population that uses hair dyes on a regular basis very little research has been done on the effects of the dye on human health (Nohynek 2010). What studies have been conducted indicate that significant correlation exists between hair dye chemicals, specifically…

    Words: 1496 - Pages: 6
  • Essay On Hair Dye

    of all is, “Can you dye wet hair?” If you’ve been researching on the internet for hair dyeing tips, you’d have noticed the varying advice beauty gurus tell you. Some beauty tutorials claim that dyeing your hair when damp can help absorb hair color more effectively. But wait a minute, didn’t the instructions say to blow dry your hair first? When dealing with something as sensitive as your hair and scalp, it’s best to ask professionals for beauty advice instead. Surprisingly, you’ll also find…

    Words: 842 - Pages: 4
  • Hair Dyes Research Paper

    Use of Chemical Hair Dyes and Health Problems According to J.D. Heyes, those who use hair dyes more than nine times a year have a 60 percent greater risk of contracting cancer (Heyes 1). It is important to know what kind of chemicals are in the hair dye. People do not read what the hair dye contains in it, if dying hair often it can lead to cause cancer on scalp, skin, and hair loss. J. D. Heyes, a scientist, also says that both home hair coloring kits, and dyes used at more expensive hair…

    Words: 2001 - Pages: 9
  • Squaraine Dyes Case Study

    The electrochemical properties of the squaraine dyes (SQ1 & SQ2) were investigated. The effects of the chemical structures of two SQ1&SQ2 dyes were selected in relation to the variable property of -COOH substituent for SQ1 compare to SQ2 which without substituent and determine their potential energy levels in ground and excited states HOMO and LUMO. The HOMO energy levels of the SQ1 & SQ2 dyes are -5.19 eV and -5.16 eV. The LUMO energy levels are calculated to be -3.08 eV and -3.1eV…

    Words: 1025 - Pages: 5
  • Food Dyes Pros And Cons

    The rise of Attention Deficit Hyperactivity Disorder (ADHD) is not a surprising notion after you learn the facts about what our children are eating and how it affects their overall health. Although research suggest there is not enough evidence to link ADHD and food dyes the effects are a concern. For example, Blue Dye No. 1 is linked to hyperactivity, learning problems, aggressiveness and irritability in children. (McLaughlin 10) Another harmful component is Yellow Dye No. 5, this dye can be…

    Words: 628 - Pages: 3
  • Azo Dye Research Paper

    Problem Statement Industries are generated waste water, which contain dyes and pigments in waste water. Characteristically high in colour and organic content (Grag, et al., 2004). Dyes are widely used in industries such as textile, rubber, paper, plastic, and cosmetic. There are many of dyes exist in industries and one of them is methyl red and through nano zerovalent iron removal of dyes from waste water. Dye industry effluents constitute one of the most problematic wastewaters to be treated…

    Words: 2328 - Pages: 10
  • Previous
    Page 1 2 3 4 5 6 7 8 9 50

Related Topics:

Popular Topics: