Introduction:
The standard amount of zinc to be put on a galvanized nail is between 0.28 and 1.00 oz/ft2. The higher quality nails have a higher amount of zinc, around 1.00 oz/ft2. The lower quality nails have a lower amount of zinc on them. The lowest amount it can be within the standard is 0.28 oz/ft2, otherwise it doesn’t meet the standard. However, the box doesn’t list the amount of zinc or whether it is good quality or not.
My goal in this experiment was to determine the amount of zinc (in grams) on 5 different galvanized nails to see if this specific box was up to standard, as well as how consistent the weight of the zinc is on each nail and do so by measuring the weight of the nail initially, then take the zinc off with the hydrochloric
…show more content…
Then I weighed each of them on the analytical balance with a precision of +/- 0.0001 g. After finding the weight, I found the length of the nail by measuring with a ruler with a precision of +/- 0.1 mm. Then I was able to calculate the diameter of the nail with the caliper with a precision of +/- 0.001 mm. With those three measurements I was able to calculate the surface area. I prepared five different test tubes with the same amount of hydrochloric acid in each and then put the nails in them to eat away the zinc. I then re-weighed each nail and subtracted the final weight of the nail from the initial weight to get the weight of the zinc on the nail with a precision of +/- 0.0001 g. Table 1 lists the results from the experiment including length, weight, radius, surface area and mass of zinc of each …show more content…
These would both be determinate errors. This could have either made the surface area measurement larger or smaller than it actually is. Another determinate error that could have happened would have been measuring the diameter in inches instead of millimeters or forgetting to divide the diameter by 2 to find the radius. This could have also made the measurements bigger or smaller than they actually are. An indeterminate error could have been the nail having a head and a point. This creates the surface area to be off from what it actually is because we were finding the surface area of just a cylinder.
Some new ideas I have come up with since finishing this lab would be to redo it with “hot dipped” nails from different stores as well as electrolyzed nails from different stores. This would not only allow me to compare the nails in the box alone, but compare them to other nails from other stores that were galvanized the same and galvanized differently. I would be interested in knowing more about the purpose of the zinc on the nails as well as why there is a standard of how much zinc should be on a
The micro hardness of the prepared samples were obtained by using a Vickers Micro hardness Tester (Model : Leco LV 700, USA). 5 readings were taken for each sample to calculate the average hardness. An indentation load of 5gf was used. After calculating the average hardness for each sample, mean variance and standard deviation (S.D.) was calculated to check the consistency of the data.
Moisture is heavy, and thus it can change the results of the experiment, as we only want the weight of magnesium and the magnesium oxide.
Repeat the process in order to make the surface even. Ensure that no discrimination can be made between the natural nail and the artificial one.
Furthermore, an additional method to use other hydrochloric acids that have different concentration levels such as 1 M and 2.5 M ones, can improve the outcome of the results. This increases the variation of the independent variable, which accordingly increases the precision of results.
Metal finishing is the critical part and step in preparing the metal for painting. It happens between the bumping stage when the metal is pried, hammered, pulled, and pushed into shape and the filling stage, when the small defects and details in metal finished surfaces are filled before being painted. Any type of finish is applied over your work weather the it be solvent, powder coated, or plastic it will have an index of reflection and ...
For this project you need many things. The first things you need are three plastic cups. The rust may stain on the cups so I recommend plastic ones. You want three nails covered in rust. All the nails must be the same size. You need a camera to take pictures of the changes that occur to the nail. Also, you need to get water, coke, and vinegar. It doesn’t matter what type of vinegar but I recommend regular coke. I would also appreciate it if you use tap water. The last thing you need is paper and a pencil.
On regular application of the polish you find that your nails not only look healthier than ever before but you feel the same way
Hydrochloric acid is a strong and corrosive acid that is often used as a reagent in laboratories.
There are many new innovations in the cosmetic industry, especially in the nail design category. However, there are many blatant unrecognized issues within the field. The issue to focus on at hand is the application and removal process. Any women would understand the hassle of removing the nail polish in several swipes just on one nail at a time. Or the struggle of the application process and how demanding it can be to just apply one simple color!
Carpenters, masons, and other home improvement professionals know the usage and vitality of stainless steel nails for their projects. Using stainless steel nails can eliminate the possibility of rusting and discoloration on being exposed to moist or wetness. In addition, the small stainless steel nails don’t need to have large entry holes, which makes it ideal to stave off wood splits and roof fixing etc.
Another version of the beaded nails is to allow some of the polish show through in between the jewels or beads. Metallic Mosaics With this version of nail artwork, the technicians apply shimmery polishes along with a thick glitter topcoat. Metallic mosaics make a bold statement and accentuate your nails on an optimal level. Fish Scales Another way to wow with your nails is with a fish scale design. A design such as this includes a light to medium base colour with black lines to form the scales.
Many companies all over the world produce chemicals for their products that are harmful to the environment, human health, and to all living species. Green Chemistry is the use of chemistry for the prevention of chemical pollution to the environment by using chemicals that are benign, or not harmful. The Environmental Protection Agency (EPA) states that the mission of Green Chemistry is, “To promote innovative chemical technologies that reduce or eliminate the use or generation of hazardous substances in the design, manufacture, and use of chemical products.” Green Chemistry contains any aspects and types of chemical processes that reduce the negative effects of certain chemicals, in a way, using chemistry to fight chemistry.
Glue around the nail, then beware, fix-made nails. Make certain you don't press way too hard, so it's not destroyed or destroyed nails. When you're finished, click the link, when the nail perfectly installed using the style that you simply prepare. Simple
Nails are used by most of the people in this world for different purpose not only just professionals even common man also use this nail for some reason. Mostly this nails are used by furniture makers and in construction and also by people who designs beautiful architecture with help of wood. This nails are comes in different varieties which are used for various purpose. Most common nail would be wire nail and others varieties include spike nail, brads nail, pins and tacks.
Zinc eugenate may decompose in the presence of water through the release of eugenol, making it weak ...