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Dye Synthesis Lab

511 Words3 Pages

The purpose of this laboratory experiment was to identify the molarities of dye present in green Powerade and then create a solution that possessed the same concentrations. This experiment consisted of two parts of experimentation, the first part focused on identifying the dyes present and at what concentration, and the second part focused on the recreation of the stock solution. To successfully complete this experiment, a small cuvette, full of 2 mL of green Powerade, was placed into a UV spectrometer in order to identify which wavelengths were being absorbed and reflected. With this information a complete series of dilutions using yellow #5 and blue #1 dye in ratios of 1:1, 1:2, 1:3, 1:4, and 1:5 were conducted to find the max peak absorbancy …show more content…

It is used to enhance colors that are already present or make an item more appealing, appetizing, and attractive.1 Color additives serve as a way for people to distinguish items and create a system of identification. It is important that companies have the ability to produce food items that are the same in order to not interrupt with the system of identification that has been set in …show more content…

A spectrometer is a specialized instrument that is used to quantify and measure the reflectance and transmittance properties of a sample material.2 Every food dye used in the food industry is approved by the FDA and must follow a set of individual regulations.1 These regulations make each food dye identifiable through specific characteristics that a spectrometer has the ability to detect. The machine works by exposing a sample to a polychromatic light source.2 Whichever light is reflected will then be broken apart into various sections, within the visible spectrum that runs from red to violet. A spectra is then produced that contains quantifiable measurements of the sample.2 The spectrum includes wavelengths and infers that whichever light is being absorbed is the opposite of what is being reflected.3 For instance if blue light is being absorbed than the reflected light will be orange and if red light is being absorbed than blue light will be

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For this lab, zeolite and magnetized zeolite were synthesized and compared with charcoal to find out with would be the most effective in the sequestering of Procion Red dye. Finding the concentration and absorbance of each zeolite, magnetized zeolite, and charcoal, along with a calibration curve, the best adsorbent is determined. Charcoal was the overall best sequestration of the Procion Red dye, since the adsorbent was highest compared to the others. Introduction Pollution has increased in the environment over the years, so the purpose of this experiment is to find the best adsorbent of chemicals to reduce the pollution.

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642 Words | 3 Pages

Record the amount of absorbance by converting transmittance every 5 minutes for a total of 20 minutes. Repeat all of these steps for the cantaloupe, banana, replacing the blank each time to recalibrate the spectrophotometer. After recording all the percent transmittance value, the data was then converted into absorbance value by using the absorbance conversion table. The information was placed on a plotted graph

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807 Words | 4 Pages

Jessica Vandeventer 23 March 2016 Quantitative Spectroscope and Visible Light Purpose/Question- The purpose of the lab is to build a diffraction grating spectroscope, and to view different lights. We also are going to draw the light spectra of the various light sources.

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762 Words | 4 Pages

The definition of a spectrum is a scale that classifies something between two very opposite points. A person 's characteristics can fall on a broad spectrum scale. In particular, a heroes qualities can range from a brave warrior to a regular girl. Belle from the movie Beauty and the Beast is a girl from a small town in France. She wanders off to a castle corrupted by a cruel prince.

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963 Words | 4 Pages

Introduction: Nails Galore asked us for help in creating a pigment that can be added to a clear lacquer, and it will eventually be used as nail polish. We were asked to make two different pigments. For our first pigment, we decided if we add nickel chloride and sodium hydroxide together, then it will produce sodium chloride and nickel hydroxide and will make blue. For our second pigment, we decided if we add cobalt (II) chloride and sodium phosphate together, then it will produce sodium chloride and cobalt phosphate and will make magenta. In multiple MSDS sheets, it provided the solubility and pigment of each chemical.

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1258 Words | 6 Pages

I. Artificial dyes are found in a majority of processed foods in America. Most of these synthetic dyes are made of or based off of petroleum, a crude oil. Since these dyes are mainly petroleum based they can cause serious health risks on people, especially those diagnosed with ADHD, attention deficit/hyperactive disorder. Because of these potential dangers, laws dating back to the 19th century have been passed, banning the addition of dyes and other harmful substances to foods. Through the years there have been many debates, laws and protests against food dye and their effects on humans and animals.

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556 Words | 3 Pages

Studies show that red can increase the rate of respiration and raise the blood pressure; furthermore, rad makes people hungry. People may also consume more food in a plate with warm colors compare to eating food in a plate with cold colors, such as purple, blue and black. Therefore when one sees something in red and feel like to purchase and eat the product, this may be the effect of red, not real self. Moreover, the logo of Facebook, Twitter, and Skype are designed in blue, because blue is a color associated with trust, wisdom, and loyalty; the color blue will also make people’s eyes focus on. These are the main reasons that almost every products use the color of blue makes people feels comfortable and trustworthy.

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1167 Words | 5 Pages

Research question What is the effect of temperature Amylase activity? Word count-1453 Background research Enzymes are biological catalysts that speed up a chemical reactions. They do this by decreasing the activation energy(the energy needed to start the reaction) of a chemical reaction. The enzyme present in our saliva is called Amylase. Amylase increases the rate of reaction by decreasing the activation energy needed to hydrolyse the starch molecules.

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1046 Words | 5 Pages

The 3 concentrations of enzymes were 0.5 ml, 1.0 ml, and 2.0 ml of turnip extract, while the substrate consisted of 0.1ml, 0.2 ml, and 0.4 ml of hydrogen peroxide. In a separate tube, the control was made up of turnip extract and guaiacol, known as the color reagent. This was recorded the absorbance every 20 seconds for 3 minutes.

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509 Words | 3 Pages

Due to the growing popularity of processed foods and the nation 's abysmal knowledge of them, writer Brian Rohrig argues that food coloring is an important attribute in the foods we eat in his article “Eating with your Eyes: The Chemistry of Food Colorings”. The author uses reasons, evidence, and effective word choice about how what makes a good food coloring, the best sources of natural food coloring and the benefits of synthetic food coloring to strengthen the logic and persuasiveness of his argument. Rohrig 's argument is also furthered when he appeals to the emotions of the reader. By referring the future, it causes the reader to think more in-depth about food coloring and how it may affect the future.

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918 Words | 4 Pages

“In 1775, more than a million pounds of indigo was exported from South Carolina to England” (Indigo’s Political, Economic, Cultural History 1). This massive amount of dye being traded was due to many factors that made it nearly the perfect trade commodity. The process of indigo dye being made by slaves in South Carolina in the 1700s is shown very well in the book Someone Knows My Name by Lawrence Hill. The production of this indigo dye has an extensive history of being extremely arduous to produce naturally, but results in a compact substance that will last a long period of time and be very valuable.

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1696 Words | 7 Pages

The ammonia: 1-butanol (1:1) solvent was the appropriate solvent to use for the column chromatography of food dye because it exhibited the properties of a good solvent system. A total 8 colored eluents were collected. The eluents had colors of pink, dark red, dark blue, dark green, light green, yellow, orange and light yellow respectively and

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852 Words | 4 Pages

The first synthetic dye, Mauveine, was accidentally discovered by William Henry Perkin in 1856 while he was looking for a cure for malaria. Different dyes are made of different dye molecules. Dyes have colour because they absorb light in the visible spectrum (400–700 nm), have at least one chromophore, have a conjugated system (a structure with alternating double and single bonds), and exhibit resonance

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983 Words | 4 Pages

The term photochromic originates from the Greek words “phos” (light) and “chroma” (color) and is used to describe a substance that changes color on exposure to light. More formally, photochromism is a reversible transformation of a chemical species, induced by the absorption of electromagnetic radiation, involving two forms, A (inactive) and B (active), each having different absorption spectra. Generally, form A is colorless while form B is a colored solution. Most dyes, inevitably return to the more stable form, the colorless state. Each dye is unique and varies greatly depending on the matrix in which it is dissolved in.

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276 Words | 2 Pages

Many people ask "is dyeing your hair bad?" Hair dye is bad because it causes hair damage, it could turn out to be the wrong color, dye fades over time, and it costs a lot. Dyeing your hair can cause damage and damage from bleach includes dry, brittle, inelastic hair, and hair that is more prone to breakage and split endsIt can be permanently damaged so if someone wants to dye their hair they have to have strong hair. To get certain colors you might have to bleach and tone it if you have dark hair and bleaching hair is the main cause of hair damage bleach kills your hair.

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