Shanell Ebert Physical Science Chemical Reactions with Hair Color Many people partake in coloring their hair, but do they really understand the science behind that? I’ve always known that if you mix color with developer you get a new hair color, never realizing that produced a chemical reaction. I, personally, never took the time to understand what was going on in my hair during the coloring process. In all honesty, I never really understood why the developer was called 30 volume, I just knew that was the suggested one for my hair. I was just putting all these chemicals on my hair, and not knowing about anything involved in that process other than what the result should be. That is exactly why I chose this for my topic. When starting the …show more content…
p-Phenylenediamine, better known as PPD, is the main component when causing a color change. PPD, when exposed to an oxidizing agent, produces a brown color change. By adding other compounds to the hair color mixture, you can achieve a wider range of colors. The other compounds that get added to the color mixture provoke another chemical reaction causing the colors to change and vary on their shade. For the color to deposit in the hair, the outer layer of the hair shaft must be open. Ammonia, which is found in hair dye, helps break through the hair cuticle for the color to take effect. Peroxide, also found in the developer, can be found in a wide range of hair dyes. They use peroxide in the hair color to act as the oxidizing agent. Without an oxidizing agent present in the color mixture, the reaction that would produce the desired color would not …show more content…
Another reason to be cautious would be the potential long term effects the dye may have on your health. When coloring your hair, you run the risk of allergic reactions with certain chemicals that are in the mixture. These reactions could occur the first time you encounter them, within a few months with repeated use, even within a decade with repeated use, or they could never happen but there is always that risk. This risk is why the instruction associated with hair color say test a strip of your hair 48 hours before initial use. Also, it has been suggested that some of the chemicals in hair color increase the risk of cancer. There is some research into the potential risk of some of the chemicals that are in the hair color mixtures. “In 2001, researchers at the University of Southern California published a paper in the International Journal of Cancer concluding that women who frequently dye their hair were twice as likely to develop bladder cancer as those who abstain.” It’s a little scary what we have come to think is okay to put on or in our
Every young girl or woman in America wants their image to look like a Barbie doll. This perfection includes being extremely skinny and extremely tan. In order to achieve this Barbie-like image women and men have been using tanning beds or spray tans to alter their appearance. Tanning beds can prove to be very harmful to a person’s health and can cause extremely dangerous medical conditions, including the most deadly type of cancer. However, fake tans can also be used in a positive way for some people who use them sparingly.
As the solution pH can influence the stability of NaClO-NH3 blend and the elimination of SO2, NOx, the impact of the pH of NaClO-NH3 blend solution on the instantaneous removal as well as the duration time was investigated, and the final pH after reaction was also detected and shown in Fig. 5. It can be seen that the variation of solution pH has a negligible effect on the desulfurization, but the elevated pH has a great promotion on the NOx removal, the efficiencies are significantly increased from 36% to 99% for NO2 in the pH range of 5–12 and from 19% to 65% for NO when the pH is between 5 and 10, after where, both of them are constant. Hence, the optimal pH of the NaClO-NH3 solution for the
“Enzymes are proteins that have catalytic functions” [1], “that speed up or slow down reactions”[2], “indispensable to maintenance and activity of life”[1]. They are each very specific, and will only work when a particular substrate fits in their active site. An active site is “a region on the surface of an enzyme where the substrate binds, and where the reaction occurs”[2].
Luminol is a white, sometimes pale yellow, crystalline solid that can create a chemiluminescence when mixed with certain oxidizing agents. In order to create luminol, there needs to be a diamindation of 3-Nitrophthalic Acid by Hydrazine, which produces 3-Nitrophthalihydrazine and is then reduced with Sodium Dithionite. The product on its own is not soluble in water but is soluble in most organic solvents. Other than emitting a blue light, luminol is also used in forensic studies. A forensic investigator can use luminol to detect traces of blood by spraying it on an area since it traces an activation oxidant in order to make it emit light. In order to create effective results, investigators must spray even amounts of the solution. The intensity
Individuals lying in tanning beds should consider an alternative to ensure a decrease in the chances of skin cancer and becoming addicted to the tanning bed. Tanning beds may cause you to look tan now, but the chances of skin cancer, becoming addicted, and damaging your body could potentially affect you for the rest of your life. Do not let tanning determine who you are, decide whether the benefit is worth the risk. Think before you tan.
There are no proven health risks of spray tanning as of right now; however the FDA is investigating the safety of the DHA component in the "Mystic Tan".
Indoor tanning is becoming a very popular “hobby”, but most people do not know, or do not care, about its dangerous side effects. Studies show that people who use tanning booths have a much higher chance of being diagnosed with skin cancer. If someone were to start tanning indoors before they turn 30 or 25, the risk of them getting Melanoma peaks, and if they start tanning before they turn 20 or 25, they are much more likely to get basal and squamous cancer.
...udy done by the American Academy of Dermatology, 59 percent of tanners were unaware of all the threats that accompany using a tanning bed (Cassidy 2). Cassidy also states that this lack of awareness is partially due to the tanning salons not advertising all information about skin cancer (2). Many salons offer tanning lotions, which are much different than sunscreen lotions. While they may not advertise it as sunscreen, not all customers know the difference. Tanning lotion amplifies UV rays, causing one to absorb more rays more quickly. The lotion contains no sunscreen and does not protect the user from the radiation. Of course, such information is not presented when the salon may try to sell you the product. The unfortunate side effect of such misinformation is that people may contract serious diseases without knowing that those illnesses could have been prevented.
Throughout the semester we have studied the black vernacular tradition and its attributes of competition, group interaction, the in- group, and pattern of call and response and we have learned to take those attributes and apply then to the complex subject of Black Hair. Black Hair is a complex subject not only because so little is known about it but because of the aesthetic, political, and interpersonal context through which Black hair can be studied and interpreted. Hair is honestly in just about every text and it is used to not only add insight to characters identity but to also give context to time. Many of the black vernacular tenets are seen throughout Margo Jefferson’s chapter in Negroland, in particular the first section called “The
According to CSPI, Central For Science In The Public Interest, and several other resources these dyes have been linked to Cancer, Hyperactivity, and Allergic Reactions in humans. “Tests on lab animals of Blue 1, Blue 2, Green 3, Red 40, Yellow 5, and Yellow 6 showed signs of causing cancer or suffered from serious flaws, said the consumer group. Yellow 5 also caused mutations, an indication of possible carcinogenicity, in six of 11 tests.” These artificial colors were tested on lab animals and provided evidence that certain types of dyes when consumed by humans could produce harmful affects such as mutations or
new color depends on the shades and hues of the colors used to create it. The
When approaching the topic of hair chemistry, one may think about the question, where does hair come from? Saclike holes called follicles are located all over the human body. At the bottom of these follicles are a cluster of papilla responsible for the growth of hair. As the papilla, otherwise known as hair bulbs reproduce to make new hair cells, the old ones are pushed up towards the surface of the skin causing the hair to grow longer. This may seem like a simple concept to grasp. However, the process of hair growth is a little more in depth.
The dye reacts to the inner portion/cortex of the hair to deposit or remove colour. Ammonia opens the cuticle and allows the dye to penetrate the cortex. It also acts as a catalyst when permanent dye comes together with peroxide. Most permanent dyes involve a two-step process; the first removing the hair’s natural colour (lightening/ bleaching the hair), the second adds the new one (colourant is bonded to the hair shaft). Peroxide breaks chemical bonds in hair, releasing sulfur, which accounts for the characteristic odour of hair
This experiment demonstrated the ability of agarose gel electrophoresis to separate the mixture of dyes into their individual components by the application of a combination of dyes to the same sample well. The experiment effectively demonstrated that the dyes where different in structure, energy, and composition. Most of the dyes where negatively charged at neutral pHs and only one with positive charge. The positive charge one moved an opposite direction compared to the other dyes.
Hue is the common name for the colours in the spectrum which are red, orange, yellow, green, blue, and violet. A pigment is a colouring ag...