[Mentor Note: Two thread starts merged into one]
I need to remove the Aluminium heat fins from a CPU heat extange lined around some copper water heat pipes. I could use a saw, cnc or grinder to remove them, but it seems that this way could be cleaner, and less probable to ruin the heat pipes...
Hello there! I am working on a project where we need to bind together 2mm Tungsten shot into a solid shape. The shapes are around 10mm x 10mm x 12mm. I need to be able to reclaim the Tungsten beads after use. Thus far I have found that water soluable wax has been a good substance, however it...
I shot some high speed footage of phenoxyethanol dissolving into water and observed some fractal/dendrite like patters at the edge of thin droplets that float on the surface of the water.
I suspect that the water under the droplet becomes saturated very quickly as the phenoxyethanol is not...
This is the first time I am working with DNA and I have to dissolve the dried oligos in PBS( 10mM phosphate buffer, 100mM NaCl, ph=7.4) buffer. However I don't understand how to do that. I will really appreciate if somebody can please explain me. Thank you in advance.
Where a metal melts before its oxide, can that oxide be solvated in the liquid metal? Likewise, if the metal oxide melts at a lower temperature can that solvate the metal?
If not generally, can it happen for some metals, or none?
I have a question which is ungoogleable.
Question:
What is the most efficient way to fully dissolve plant matter without destroying its chemical make up, for distillation purposes?
Background Information:
I started down this rabbit hole while researching the viability of a artisanal soap...
In searching through the literature for the solubility of calcium oxalate, I came across this post https://www.researchgate.net/post/Are_there_any_organic_inorganic_solvents_for_dissolving_Ca-oxalate I am not sure where the people answering this question have gotten the information that calcium...
Homework Statement
If 0.025 g of Fe(OH)3 is added to 3.84 L of water, what mass will dissolve? Ksp is 2.8E-39.
Homework Equations
Ksp = [x][x]
n= m/M
The Attempt at a Solution
I believe in this question that the starting mass is deemed irrelevant (although now i am starting to believe that is...
Hi,
In an enclosed system - of say Methane & water - in which the water column is sufficiently large to have significant pressure and some modest temperature difference due to gravity and geothermal effects, how would one calculate / predict the changing methane concentration (or partial...
Hello! I'm having a bit of an issue here, and I came across this site while searching on how to dissolve plant matter. The thread I found had some ideas, but said a reason would be needed before any concrete advice could be given.
So here's my request - I need to instantaneously dissolve plant...
How do you chemically dissolve Strontium in it's solid form? (It's an alkaline metal)
I need it in some kind of liquid form or flakes (I was thinking of just shaving it down but that might not be as efficient nor very safe) so I can then put it into another solution of graphene conductive...
What home based solvent might dissolve an unknown electron microscope seen insoluble particles ?
There are some sort of unknown insoluble particles in our water. Does anyone know of any home remedy acid solution (baking soda and vinegar) that might dissolve these particles ? Please keep in...
Homework Statement
The question tells me that all dissolved iron species will have an activity of 0.1M. So is Fe(OH)42- considered a dissolved species of Fe, and if so, it will have an activity of 0.1M?
Homework Equations
N/A
The Attempt at a Solution
I want to say that it is not considered...
Having trouble finding specifics about solubility of Bromine in water. I've read that it will not dissolve if present in small amounts. How much is small amounts?
Also, what about Iodine (I2) and Fluorine (F2).
In specific, I am looking for a nonpolar solute to increase the density of oil and...
Hello all,
In interested making a wood preservative using diesel fuel,
paraffin plus an algaeicide.
I am wondering if Copper Sulfate Pentahydrarte will dissolve
in diesel fuel?
If not are there other copper chemicals that may?
thanks in advance,
HarryA
I have a piece of equipment that was manufactured using direct metal laser sintering made of a titanium alloy (Ti-6Al-4V). It is a cylinder with thin helical channels that is located above a vapour source in vacuum. I plan to coat it with silver, and I am looking for an effective way to...
I have decided to grow a plant that could possibly help with my illness. This plant could possibly cause an issue due to its nature. Is there an acid that is somewhat safe to dissolve dried plant material quickly? I have looked at other physics forums that talk about piranha acid and that is WAY...
Why is CO2 released when soda is shaked, and dissolves again when the soda is stable?
My teacher in class today said that soluble gases will dissolve faster in the presence of agitation. In practice (e.g. shaking a bottle of soda), this seems to not be the case. Please explain
Thank You,
EJ
Boiling point elevation depends on how many ions dissociate in the solution. Typically CaCl2 is a good substance to use but it has a pretty high molar mass... I'm wondering what the best substance to use to increase the boiling point of water?
Thanks!
Hi, everyone..
I do want to know, what are parameters that I have to know to dissolve TiO2,,?? I have tried many solvents like H2SO4, HCl, HNO3, citric acid, ascorbic acid, equi-molar citric/ascorbic acid,, but all was fail.
could you tell me,,??
Thank you.. :)
In water ,due to attraction between water molecules and polar solute molecules the solute dissolves.
But though alkyl halides are polar they are less soluble in water.Why?
Problem: I have a 2 acre pond from which the water exits via a stand pipe (vertically 10' then horizontally 70'. The stand pipe has become clogged with vegetative material (I left out the ounce of prevention). We have exhausted plans A - F of attempts to mechanically remove the clog with zero...
In the matter of 30 seconds, preferably.
So far it seems Sulfuric Acid, Hydrogen Peroxide and Permanganate in a cocktail will suffice.
Are there any faster, cheaper methods?
Thanks :)
i need to dissolve a copper nail completely what chemical can do that and how much time is enough to form the reaction , i thought about sulphuric acid as a reactant but i don;t know if it dissolve it completely or partially !
Homework Statement
Would sodium salicytate dissolve in any of the following solvents?
Water
Diethyl Ether
6% HCL
6% sodium bicarbonate
6% Sodium Hydroxide (naoh)
You don't have to but please explain your guess too. Thanks a lot.
Homework Equations
The Attempt at a Solution
I think it...
So I've been doing biochem research on bacterial biodegradation of exotic organic compounds. Based on a lot of research I've done, a lot of biodegradation pathways involve step-by-step mono-oxygenation reactions catalyzed by Cytochrome P450 enzymes (which contain a ferrous heme group) and redox...
Hi everyone;
I use usual adhesive tape (like scotch tapes) in one of my project and I want to get rid off the tape and all its remains at latter steps of my work. I want to do it with chemical methods so I used dichloromethane. But it only dissolve the plastic part of the tape but sticky part...
I was reading about cellulose derivatives there and came across the wiki page for methyl cellulose:
https://secure.wikimedia.org/wikipedia/en/wiki/Methyl_cellulose
which states that it is a hydrophilic compound that dissolves in cold water but not hot water. Up until now, every compound I've...
I am trying to create a solution of Chitosan (Low MW) in 1% Acetic acid. I ve tried dissolving up to 3gr per 100ml (Literature reports solutions up to 10% wt.)
My problem is that by using extensive sonication and stirring for days the solution is still very thick (very viscous) and you can...
Well, the tittle says it all. Other than water, what will dissolve ordinary white crystalized table sugar. Specifically something that would evaporate and leave behind the sugar as a residue. Also something that is reasonably safe to handle.
We have purchased a federation style home, which had the front painted white. During the removal process, we found that underneath several layers of paint, plaster of paris had also been applied in a random way, and is proving very hard to remove. We have tried HCL, as spirit of salts, but no...
I have just carried out a lab experiment today and desperately need some help!
1. The Experiment:
In my experiement I attempted to mix a solution of hexane with aqueous bromine. I started off by adding 15 drops of bromine into a test tube and then added 7 drops of hexane ontop of that...
My groupmates and I were using plaster of paris for our Arch 10 scale model of a chair. We used a glass casserole for the first trial. Kind of stupid. We covered it with oil before putting in the mixture but when the mixture dried, we couldn't get it out anymore. How can I dissolve plaster of paris?
I'm trying to wrap my mind around the concept of metals dissolving in water under different electrical potentials. For example, platinum is know to dissolve in liquid water when subjected to 0.65-1.1V. Why does this happen? I'm guessing it has something to due with water being so polar but why...
I got a Gallium Nitride crystal grown on Sapphire (alumina - Al2O3). I want to remove the 300 micron thick sapphire without damaging the Gallium Nitride film. How to remove sapphire by chemical or physical method? Any suggestions are appreciated.
Hello; I'm new here and this is my first post. I think I've done all that I can do before posting this: I've spend a lot of time searching for the answer myself through Google; I've read all of the sticky posts here; and then I did a search of your post archives but couldn't find an answer...
why does the precipitate dissolve, reappear, and then dissolve again??
Homework Statement
i have a chem lab due tuesday and was wondering if anyone may please help me on it!
the problem:
Mix silver nitrate solution and hydrochloric acid solution. Product is a precipitate
2. Add...
Hi,
I have searched rigorously for a solution to this problem but I seem to get inconclusive answers. I want to find the percentage purity of iron in cast iron and the best way to go about this is a redox titration. The first step is to reduce the Iron to Fe2+ . I intend to do this by...