If at this moment, the jewelry boxes and countless other silver objects of individuals were looked at, each person would have at least one (or up to 25%) item with surface tarnish, making them black and unappealing. Most of these items are valuable family heirlooms or pieces of jewelry that hold special memories for an individual. These beautiful pieces full of history are discarded in the back of jewelry boxes because they are tarnished, flawed, and harmful. Personally, jewelry was given as a gift commemorating special events, and as time passes, these beautiful time pieces have become dark due to tarnish and are harmful to wear. They can cause skin discoloration and irritation.…
Identifying Unknown Esters Produced by Fischer Esterification Introduction This procedure was performed in order to prepare an ester using an unknown alcohol and unknown acid via Fischer Esterification. Then to identify this unknown ester using gas chromatography. Esters are a derivative of carboxylic acids.…
Arsenic was used commonly in elixirs prior to the 1920’s. Although it comes in various colors and forms the most common and the most useful is the grey form of arsenic and it is also commonly paired with lead, as well as, used in pesticides. It is easily obtained and as a result was used as a common poison in early America. It was often cause severe diarrhea, cancers, and strokes.…
Known as the human species oldest recreational drug, Ethanol is a colorless, flammable liquid, with a distinct smell, and burns with a blue flame. It has the chemical formula of CH3CH2OH (it's molecular formula) or C2H6O (it's empirical formula), that can also be abbreviated using chemistry notation as EtOH. It has a melting point at -173.2°F , and a boiling point at 173.1°F. Ethanol has many handy uses around the world, in many different places.…
The answer to the question of whether or not to use a blackhead remover for acne care is yes, and no. If the device is used properly and kept sanitary, then the answer is yes; otherwise, you could do more harm than good. A blackhead remover will help you with your acne care. Do Not Dig at Your Face We have all seen the blackheads and we all want them out of our face as fast as possible, so finding a blackhead remover for your acne care is very important.…
However, it was discovered that it may be used to erase a wide variety of inks used on checks unnoticeable to the naked eye. Even though acetone is at the peak of the number of chemicals used this makes it harder to come by. Many criminals now resort to other chemicals; such as Carbon tetrachloride, benzene, and even common household…
DEFINITION #1 PET or PETE represents polyethylene terephthalate, the most well-known member of the polyester family. It has become incredibly popular for carrying of food and drink packaging purposes because of its strong ability to stand a liquid and gas barrier - so the chance of getting the food’s spoil is lowered and the carbon dioxide that produce fizzing in soft drinks cannot escaped. PROPERTIES Lightness, clarity, strength, toughness, barrier to liquid and gas. COMMONLY USED IN Cosmetics, Bottled water, soft drinks, oil, sport drinks, juice, mouthwash, ketchup, beer, wine, food jars, such as peanut butter, jelly, jam and pickles.…
Which balloon is the fastest You are going to know how to inflate a balloon without you mouth or air tank. 1st you have to ask question like what are you using in your science fair experiment. You have to , know if some of you materias are dangerous. You have to know what are they use for.…
WellnessBell Toe Separators For Healthy and Beautiful Feet! Dealing with painful feet is a major problem, especially since 75% of all Americans have had some type of foot related issue in their lifetime. However, a simple solution that will relieve strain on the foot and alleviates pain caused by mallet toes, bunions, corns, calluses, hammertoes, and claw toes, are toe separators. Toe Separators Toe separators help create healthy and beautiful feet because they put spacing between the toes, which aid in healing and improving musculoskeletal structure. These magical tools serve multiple purposes and is mostly known by their infamous nicknames “bunion splints” and “yoga toes”.…
Cleaning fluids, Cleaning solvents, Paints, Pharmaceuticals,…
After starting with 30 mL of an unknown mixture of two solvents, fractional distillation and gas chromatography were used to identify the unknowns as acetone and toluene in a 1 to 2.04 ratio of acetone to toluene. Fractional distillation was first used to separate the unknown mixture into its components based on boiling point. Distillation refers to the method of separating components of a mixture through heating and cooling. Simple distillation, which is especially useful in the separation of less-volatile substances from volatile substances, such as sugar from water, can be used to separate a liquid-liquid mixture if the boiling points of the component liquids differ by more than 40-50°C. A plot of temperature versus volume for a simple…
Acne Scar Removal: Natural or Chemical Acne is the bane of existence for millions of people. The scars they leave behind have created a billion-dollar industry that will never die. Acne scar removal can be done in a holistic way or through chemical processes. Acne is the most dreaded word for every teen. Adults that still battle acne are stunned by it.…
How A Dermatologist Can Remove Your Old Tattoo Getting that tattoo back in college may have seemed like a good idea at the time, but you may regret it now. If you're embarrassed by your tattoo and you're tired of trying to cover it all the time, then you should see a dermatologist about removing it. Tattoo removal has improved over the years, and it's possible the ink can be removed without a trace. Here are a few things you may want to know about getting your tattoo removed. Why You Should Go To A Dermatologist…
Nails are easy to grow out. For a healthy individual, it should take no more than two to three weeks to grow long nails. But it is a challenge to keep them from tearing, chipping and snagging once they are long. Here are some care tips to grow long natural nails perfect for art canvases. Eat to be healthy Eating healthy is the foundation of great looking nails and hair.…
1. Aldehydes and ketones undergo nucleophilic additions to saturated carbonyl group and produce relatively stable saturated adducts. Nucleophilic additions to the carbonyl group of carboxylic acids and their derivatives lead to unstable intermediate which react further to regenerate the carbon-oxygen double bond. Therefore, acyl halides and anhydrides are the most stable reactive carboxylic acid derivatives. The least reactive are amides and esters and carboxylic will have an intermediate reactivity.…