Questions tagged [home-experiment]

For questions about a small-scale experiment which can be undertaken with reagents readily available around the house, while observing standard laboratory safety principles and practices. Do not confuse this tag with [everyday-chemistry] or [food-chemistry].

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18 views

Separate natural vanilla extract from ethanol [closed]

I have a extract of Tahitian vanilla in 35% ethanol that I would like to separate from the ethanol and transfer to a fixed oil such as fractionated coconut oil. Tahitian vanilla has some fairly ...
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2answers
56 views

Electrolysis of copper chloride in solution of Vinegar + H2O2 + NaCl after copper etching

I did copper etching (to make a PCB) using a solution of vinegar + H202 + NaCl and now I need to dispose the solution. There is no waste collection for this kind of stuff where I live, so after some ...
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1answer
38 views

Phosphoric acid spill cleanup

While working with some rust converter (MSDS, ~20% phosphoric acid by weight), a sequence of events that would make Rube Goldberg proud led to me spilling about 500mL of it all over the place. Yes I ...
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32 views

Why does sodium carbonate heat up when mixed with water? [closed]

I have a sample of sodium carbonate anhydrous (from heating sodium bicarbonate above 100c). When I mix in water, it heats up. Why does this happen? Where is the energy coming from? What form is the ...
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2answers
884 views

Cleaning with vinegar and sodium bicarbonate

Mixing sodium bicarbonate with vinegar (and sometimes adding dishwasher detergent) is quite a common tip on the internet. But I have never understood the reason. I saw there was a question about using ...
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2answers
49 views

Is there a safe way to neutralize bleach at home [closed]

I don't want to simply replace one hazardous chemical with another. The bleach is stubbornly clinging to my shower walls and I feel its effects every time I take a shower. Ascorbic acid seems like the ...
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1answer
57 views

Is this calculation of the amount of required hydrogen gas correct?

I was a bit hesitant to post this question for it may appear like a "homework help" type of question. But upon rethinking it felt like a genuine question. I was studying stoichiometry with ...
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1answer
33 views

Use an Ozone generator to get rid of fungus in the flat? [closed]

I was told that I can use an Ozone generator to get rid of fungus (resulting from not enough fresh air I suppose). But I didn't find any reputable source for that claim. Would it work, Chemists of ...
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20 views

Isolating additives in alcohol products

Given an alcohol-water solution (Liquor products) that may have additives and/or may have been aged in wood, I'd like to boil off the alcohol and the water to leave behind the various additives in a ...
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0answers
27 views

Obtaining potassium silicate from sodium silicate

Is it possible to obtain Potassium silicate ($\ce{K2SiO3}$) from Sodium silicate ($\ce{Na2SiO3}$) without using expensive lab equipment such as furnaces etc.? For example, Calcium silicate may be ...
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12 views

The iodine clock reaction demonstration [duplicate]

I'm looking for a recipe including concentrations and amounts to prepare the iodine clock reaction. I only have Hydrogen Peroxide, KI, Starch powder and Sodium Thiosulphate. Firstly, do I need ...
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45 views

Chemistry and Plants [closed]

We're going to conduct a study to make corn husk fiber into a paper. Soda Ash is always used to extract the fibers from the husks, First question is there any chemical we can use aside from soda ash ...
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1answer
69 views

Removing Iron Oxide from a Floppy Disk?

Don't ask me why, but I did an experiment where I tried to remove the magnetic iron oxide layer from a floppy disk by soaking it in HCl for a week. I put pieces of floppy disk in 0 - 1 M HCl, then ...
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1answer
54 views

Will these K-alum crystals combine into a “cohesive/well-glued” mass?

The attempt to make a single solid mass of K-alum, using over 125 grams of McCormick K-alum powder, has resulted, in less than 2 hours, in: So besides the growth around the loop of the seed "...
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1answer
96 views

Determine if stuff is Potassium Alum

How can one determine (at home) if the product shown below is Potassium Alum? I held a piece of it in a gas flame (assuming that the flame would become violet if potassium were present), but there was ...
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76 views

Preparing Hypochlorous acid from salt water

I am a school student and I want help with a project My aim: Preparing Hypochlorous Acid (Suitable for sanitation). I searched across the internet and found an article at https://www.hypochlorousacid....
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1answer
43 views

Home foundry — melting aluminum, mitigating undesirables

I am going to be melting aluminum cylinder head and some soda cans in the home foundry. I am aware the sulphur and the hydrogen present in the melt can make aluminum prone to cracks and brittle. Are ...
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1answer
148 views

Electrolysis with baking soda solution, a penny as the cathode and graphite for the anode

I set up an electrolysis experiment to show my kids and wanted to explain to them what is happening. My setup has a penny as the anode and graphite for the cathode. The solution is water with baking ...
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50 views

How do you purify gases formed in electrolysis with a potassium hydroxide electrolyte?

I am interested in the $\ce{KOH}$ vapor that is released with my gasses during electrolysis. I have two questions. What would be the best place to start research on the $\ce{KOH}$ vapor produced in ...
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58 views

How to make Lithium medication from scratch

I take lithium carbonate as a medication. I was watching an "apocalypse-style" movie recently, which made me wonder how hard it would be to make my medication from scratch if I could no ...
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0answers
71 views

What are the most potent hydrogen peroxide decomposition catalysts available to an amateur? [closed]

Some months ago I was playing with $60\,\%$ $\ce{H2O2}$ and unknowingly I used a silver spoon to transfer the liquid from a container, and the peroxide immediately started bubbling (it did look and ...
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2answers
74 views

How to determine the product from my attempt of HOCl synthesis

This is a follow up to this question. Here is my short procedure: start with 200mL distilled water add 7mL of 8.25% sodium hypochlorite (.11M) to the solution. The resulting solution should be 3.7*10$...
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2answers
95 views

How do you dispose of K2SO4 and MnSO4? [closed]

I want to do an experiment by showing how generated oxygen can affect an ember. I saw on the video that adding peroxide and potassium permanganate will do this. $\ce{2 KMnO4 + 3 H2SO4 + 5H2O2 = 2 ...
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41 views

Conversion of Erythrosine to Fluorescein

I am a home-chemist and I love dyes. I recently got my hands on sodium salt of erythrosine (tetra-iodinated fluorescein). I want to convert erythrosine to fluorescein. I speculate that using dilute ...
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1answer
57 views

What is the safe level of energy output for hydrogen combustion at home?

With confinement, my son would like to do some home experiments for a class. So far, he has a good setup that seems sound for the electrolysis of water. A later part of the experiment would combine ...
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2answers
92 views

Which is a dye: Ferric Acetate or Ferrous Acetate?

I’ve been trying to make Iron Acetate to dye leather and I cannot, for the life of me, figure this out experimentally. I’ve been allowing steel wool to react with pure white vinegar in a sealed glass ...
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0answers
37 views

Does it make sense to have a control group for a school chemistry experiment?

I'm wondering if it makes sense to have a control group for the following experiment: measure the speed of gas produced when hydrochloric acid and calcium carbonate react, as a function of surface ...
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1answer
72 views

Distinguishing between potassium chloride and sodium chloride

I have these very large blocks of salt intended for a water softener in my house, but I'm not sure if they're potassium chloride or sodium chloride, according to what I've read they're both widely ...
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1answer
41 views

How can I purify Ferric or Ferrous acetate with a very basic lab?

I’ve been trying to make Ferric acetate by mixing vinegar with steel wool and allowing it to react. The result is successful in dying leather or wood black and acting as a mordant. Theoretically there ...
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3answers
255 views

Does solute concentration vary significantly with depth?

If I dissolve glucose in an ordinary beaker filled with water, are the concentrations of glucose at the top and bottom significantly different? What if we use NaCl as the solute? Is there a molecule ...
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2answers
218 views

Looking for an old (1950s) “chemical experiments” book

Not sure if this is precisely on-topic, but I'll risk some reputation and give it a try. I got a chemistry set as a kid in the early 1970s, and the subject really captured my interest. I grabbed ...
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2answers
64 views

How can I dissolve a precipitate when stuck to the side of a boiling flask

I’ve been experimenting with producing Iron Acetates and I’ve run into a snag. Here’s my process so far: I started by adding white vinegar and ~50% Hydrogen Peroxide to a reaction vessel with steel ...
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1answer
65 views

does stirring honey make it less viscous? [closed]

After making some research, I found that crystallized honey does get less viscous as we stir it, so is it the same thing with pure honey or not? and also if not could we use the Zahn cup experiment to ...
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1answer
110 views

Ripening of bananas?

So, obviously the ripening of bananas involves changing it’s chemical composition. For example, ripe bananas have a much higher amount of sugar. It is also known that reaction rates are generally ...
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1answer
102 views

how much baking soda and vinegar will you need to fully fill a ziplock bag up without popping it? [closed]

EXACTLY how much baking soda and vinegar will you need to FULLY fill a ziplock bag up without popping it or it being deflated? I am really confused. That is all our teacher told us and he said that ...
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1answer
97 views

Cooking IN CO2 gas? [closed]

Quick theoretical question: What if I replaced water with dry ice in my pressure cooker? Assuming I used a calculated amount to prevent an explosion... Would It be able to cook? Would it dehydrate ...
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2answers
167 views

Nitrocellulose (flash paper) synthesis without Sulfuric Acid?

According to the Wikipedia page on Nitrocellulose: The process uses nitric acid to convert cellulose into cellulose nitrate and water: $$\ce{3HNO3 + C6H10O5 ->[H2SO4] C6H7(NO2)3O5 + 3H2O}$$ ...
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1answer
67 views

How to store small amounts of gas

I need to store small amounts of gas. I already saw devices that look similar to the image below, but I don't know how they are called. Does someone here know how these devices are called? I am also ...
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0answers
60 views

Adding an essential oil to WHO Handrub Formulation [closed]

I'm not a chemist, so I prefer to ask this question to some people, who definitely have knowledge in that area. WHO Handrub Formulation is available here. Ingridients: Ethanol 96%, Hydrogen peroxide ...
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2answers
42 views

Why does Sodium Bicarb. Reduce Combustion Rate? [closed]

In many common solid-propellant model rocket engines, Sodium Bicarbonate, $\ce{NaHCO3}$, is used to predictably regulate/limit the rate of combustion of the fuel. My questions are as follows: What is ...
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1answer
55 views

How to estimate hydrogen peroxide concentration in an easy way?

I have bought 20 Liter of Hydrogen Peroxide about 2 years ago which I was told that it was pure at that time. I'm aware of instability of H2O2, which easily decomposes into water and hydrogen. The ...
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1answer
50 views

Can I use an acid other than sulfuric for hydrogen peroxide determination?

I would like to perform a permanganometric titration of hydrogen peroxide at home following a procedure similar to http://www.titrations.info/permanganate-titration-hydrogen-peroxide, i.e. the ...
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1answer
73 views

Copper (II) Acetate from 5% vinegar + salt, electrochemically

I'm trying to create Copper (II) Acetate crystals, but in these times of Coronavirus it's difficult to come by hydrogen peroxide. I could be patient, but I'm not, so I'm trying to make it ...
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4answers
3k views

How can you build a model of tetrahedral coordination from objects found at home?

Our college is switching to teaching online mid-semester in hopes of slowing the spread of Covid-19. All the molecular model kits are still on campus. How could you build a model of tetrahedral ...
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1answer
42 views

Is it appropriate to call this material a hybrid composite? [closed]

The material I've synthesised is made up of two primary parts at a 1:1 ratio: Part 1: agar, glycerol, water. Part 2: polyurethane resin. The agar mixture on its own was too soft, so I added the ...
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2answers
686 views

Is there a way to create natural Red food coloring from Turmeric in the house kitchen?

As a non chemist I have read in the Wikipedia article Curcumin that: Curcumin becomes bright red when it interacts electrostatically with phospholipid film. This text appeared without source ...
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15 views

How to disperse and disolve acrylate copoylmer?

I've made many attempts to dissolve my acryalte copolymer into water, i've tried both hot and cold, stirred and used a grinder to dissolve it but it doesn't. Anyone who can help?
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1answer
53 views

Nano coatings reaction with Al bottles

I have a question regarding nano coatings based on the formula "modified $\ce{SiO2}$". I have been told that $\ce{Al}$ bottles react with substances with a $\mathrm{pH}$ value below 3 or above 9. ...
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0answers
38 views

membrane for a reverse osmosis desalination experiment

We are second year cram schoolers , we are currently working on a project tackling water desalination by reverse osmosis and are required to do an experience. During the process, we encountered some ...
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62 views

How to test for methane gas purity?

I use methane gas for cooking and there are times in which, despite burners being clean, the flame doesn't burn that well and/or is quite red. I suspect that said gas actually has some air added in, ...

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