Applied Chemistry

Hello All: I'm new, and this is my first post. I hope I am in the correct forum. If not, please let me know where to post. I'm experimenting with NiFe batteries, and have constructed a small set. I would like to build a larger bank, but the cost of nickel is prohibitive. Can anyone here give me any information regarding the following: 1. Can nickel plated material be used instead of a nickel bar? 2, What other materials might be used for anodes/cathodes? 3. What other chemicals could be used for electrolyte? Thanks for any answers, I'm not a chemist or scientist, so the simpler the answer, the better. Thank…

This goes with the extracting sodium thread, but is it possible to make a homemade version of a downs cell?

Hi, Hope someone can offer a little help. I am trying to understand the reaction of carbonation in concrete and more exactly how to accelerate the reaction ie high, low, or nil water in the concrete at a higher or lower temperature. Hoping someone can offer a little insight into the reaction Ca(OH)2 + CO2 = CaCO3 + H20 Do you need water for this reaction to take place ? I think the above reaction is Acid Base because it produces water, but CO2 isnt an acid unless it is in water (Carbonic acid). Its exothermic which means that it will react quicker at elevated temperatures - yet CO2 is more in water soluble at lower temperatures. Hence Im confus…

hey i was wondering if you can create KNO3 with KCl and NaNO3. I was told you can. If so whats the technique? Thankyou Icey

help, i have recently spilled a container of mno2 over my mums table, is there any non toxic way of getting this out?

There is an ASTM test for hydrolyzable chloride involving dissolving sample in 45.0 mL of 0.1N KOH (MeOH), reflux, add phenolphthalein indicator, titrate with 0.1 N HCl (aq). The equation is (V-B)(N)(3.55 g Cl/eq)/(W) The volume of the sample titrated is invariable LESS than the blank. I am getting some strange results here. Does anyone have any information/suggestions/ideas? Sure would appreciate the input. Thanks!

What shape are atoms?

I've put some undissolved ninhydrin in a test tube and added about 0,5 mL of conc. KOH(about 5 M). The colour changed to dark blue. I tried the same thing with ninhydrin(aq) and nothing happened. When I added H2O2 to the blue solution, CO2 started bubbling from the solution( I know it is CO2 because I tested it with Ca(OH)2 (aq) and it turned cloudy white, and after adding HCl turned clear again). Is it possible that H2O2 oxidized that blue compound to phthalic acid? What would be the structure of that compound? And can anyone propose a mechanism?

what is the chemicl equaion with this brilliant reaction (one large drop will dissolve a large hole through a 2cm block of polystrene!)

It is quite common between chemists to consume large amounts of coffee while doing lab work and/or writing scientific essays and I just wanted to ask everybody how they feel about the application of high doses of caffeine in science. After all I heard, the whole issue is double-edged. Naturally, being one of the most healthy stimulants, caffeine will give you and your mind a burst of energy to perform well (especially in the morning). Plus, coffee is said to contain a number of antioxidants which have a positive effect on your health and metabolism. On the other hand, caffeine certainly draws water from you body which - unless compensated - never is a good thing. Now I…

Looking for a way to create a molecule and then spit out molecular coordinates in pdb format help please I should mention I am using a mac open source software is welcomed

I understand that, from a scientific perspective, there is more than one kind of salt. The salt that we typically use as a seasoning on our food is called sodium chloride, aka table salt. My car is currently stuck in ice in a restaurant parking lot. I live within walking distance of this restaurant (and, as a direct result, I'm a regular customer there), but the walk (as opposed to the drive) is still F'ing brutal! I can't go forward, because that giant stone slab is in the way, and I can't back up because there's too much ice. I don't wanna pay out the ass for a towing service. My neighbor just told me that, in the morning, I can just sprinkle some salt on…

Hello I am graduate student at a university working on a M.S. in environmental science. I am asking for advice on creating emulsions in water beakers with lipids (poly unsaturated fatty acids). I want to create emulsions with fatty acids like DHA (docosahexaenoic acid, 22:6(n-3)). Seeing as how they are not saturated they should have some solubility in water...at pH 8 it is predicted at around a few grams/liter. However when I dispense 20 to 10 mg into a 1 L of water lipid droplets/vesicles still form, even after shaking vigorously. So as of now I have little hope of dissolved monomers but I want to at least create a 'stable' emulsion, or micro/nanoemulsion, that wil…

Hi! What is the maximum temperature(or heat) that a typical sunmica/formica sheet used on table tops can tolerate without damaging(its upper layer)? In many households, I've noticed that a hot vessel just off the stove is rarely placed directly over the tabletop; a stand or some cloth is placed between both the surfaces(to prevent apparent 'damage' to the table). The general consensus around my city seems that the kind of mica used in tabletops doesn't have much thermal resistance. Is this true?

Hi All, Need your expert opinion on the result below. Please help! Using standard addition method, I'm perform accuracy check for Total Organic Carbon using DR5000 equipment. I finding the result is confusing. Please help me to understand the result below. Sample use: DI water Standard: 150 mg/L 0.1 spike reading: 5.651 mg/L Recovery: 87.4% 0.2 spike reading: 13.046 mg/L Recovery: 119.1% 0.3 spike reading: 18.24 mg/L Recovery: 120.2% Curve fit: 0.9882 I'm reading the result as my Recovery is out of place. I'm kinda confuse on the recovery of each spike. Also, basing the result to the expected output with respect to the reference below, it look…

Hello, it was recently that I had thought of the following process: U-238 goes through Alpha decay Products Th-234 and He-4 are produced He-4 has no electrons being newly emmited The He-4 inside of a vacuum goes towards a sample of Mg-24 Mg-24 gives 2 e- to the He-4 He-4 and Mg-24 both obtain full octets. Now would the Mg-24 and He-4 form a bond forming a compound or would somthing else happen EDIT:sorry i posted in wrong section, but if anyone can still help i apreciate it.

If i dissolve Na2CO3 in water and distill the solution will the water that comes over have a higher concentration of hydroxyl ions. I know the best way to find an answer is to test the idea itself. I was just curious to know if there is any info out there about it.

Hello, I was wondering if anyone could expand on how taking the derivative dlnY/dlnx of a partition function that describes the different species ligating species, Y=1+kx, in this case a ligand, x, binding to protein with a single site creates the function for average ligation(k is the association constant). That is, after taking this derivative you get Y'=kx/(1+kx). My question is why does this work and where does this derivative come from? Is it somehow derived to get to this point or is it simply an observation?

hi everybady i am going to detrmain the total carbohydrates in fruit juice using phenol- sulforic method ? any one think that i need to prepare the samples ( extrat or leading )? the sugers allready soluble in the juice so i dont need to do the extract step ?? any help

My assigned text doesn't have many problem sets and that's how i learn best, by working out many problems. Are there any good books that contain mostly problem sets and the answers or solutions to them? I don't want to search online for problem sets for each section, I rather have it all in one place, which is why I want a book. Thanks.

hi, i have an account on apc aswell as sfn but everybody is telling me that nitric acid is non explosive when i have been told by a reliable source that it is one of the ingredients to nitroglycerine, can i please get a bit of back up

I have a piece of Alumina (Al203) to be coated with metallic multilayer of Cu-Al-Ti. I choose to use evaporation method instead of Plasma sputtering because some books says Plasma sputtering PVD cause some impurities incorporated in thin coating.. So my problem is to find the phase transition diagram of those metals because i need to know the pressure and the temperature at which the solid metals start to vaporize.. Just their critical point (P-T diagram) would also be helpful.. Thanks ...

If rust is basically Fe3O4-nH20, would it possible to strip it of water with conc. sulphuric acid? Would the result be magnetite? Also, after the top procedure, if I use carbon to react with the product, would it yield iron?

a, what are the roles of sulfur and zink in sulfur and zink rocket rocket fueal, and b, i found some chlorine powder in the supermarket the other day, can that be used in rocket fuel the same way pas pottasium nitrate as it is marked as oxidising agent 5.1?

Basically, there is this chemical called "s-equol" (here is some information about it, if it's useful - I also have a full document on how to create it http://www.trc-canad...?CatNum=E593001 ) that I would love to create in fairly large amounts, as I think (through researching and looking through studies, etc) it has some significant implications for health and for the treatment of some conditions. S-equol is actually made naturally in the bodies of about 30% of the world's population from soy, as they have the gut microflora to produce it. However, although it is possible with time and effort to become a natural "producer" of this chemical, I believe it is highly bio…