A small-scale experiment which can be undertaken with reagents readily available around the house, while observing standard laboratory safety principles and practices

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1answer
19 views

Any home made tricks to fill up a baloon that floats?

These days there are a number of fancy balloons available, some of them are very beautiful. As always, they loose their gas overtime and don't rise anymore. Some of those new type balloons appear to ...
2
votes
1answer
39 views

Is purple paint more suspeciple to UV damage than other colors?

I was recently sorting some Mardi Gras beads. These are cheap plastic beads on strings, coated in cheap metallic paint. While sorting the beads into different colors, I noticed that the purple beads ...
4
votes
2answers
65 views

How ‘lively’ would this ‘health’ potion be?

I’ve stumbled across a rather peculiar recipe for a allegedly ‘health’ potion in a computer game, composed of an unspecified amount of each of the following: rust (iron oxide) saltpetre (potassium ...
2
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1answer
35 views

What would happen if you used NaNO3 instead of KNO3 in the smoke bomb experiment?

A very famous experiment goes like this: $\ce{KNO3}$, molten wax and sugar are mixed and later burnt; the resulting mixture produces quite a lot of smoke. After hearing about the experiment, I ...
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0answers
18 views

Colloidal Silver?

There are a lot of tutorials on the net on how to make colloidal silver. Many of them basically go like this - Hook up two 99.99% silver coins or wires to three 9V batteries, and put the silver in ...
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0answers
39 views

Make a silver zinc battery

I have a shaver that runs off a rechargeable battery that is dying. Would it be feasible to make a silver zinc battery and use it to replace the existing battery? Cost is not an object, anything less ...
6
votes
2answers
129 views

Where's my experimental error coming from?

I'm teaching chemistry to a home-ed 15 year old. Occasionally we do some practical work, since I believe very strongly that physical science learning should have some real lab work to bring it alive, ...
3
votes
0answers
40 views

Most effective means of removing coffee stains from carpet

I have several old coffee stains on a carpet. Googling "coffee stain removal" reveals a variety of suggested cleaning substances-- vinegar, baking soda, laundry detergent, etc. I have used all of ...
1
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1answer
29 views

What factors might affect the reaction between potassium permanganate and ethylene glycol?

Our chemistry club has, for the last few years, been showing off some reactions to prospective students. One of the most popular tricks we have is a bit of an explosive one: we mix some potassium ...
0
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1answer
32 views

Non-wetting fluids for precise volume measurements

I need to precisely measure the internal volume of an open steel fixture. I was planning to do this via displacement, but I'm wondering what the best fluid would be. Ideally it should have no ...
2
votes
1answer
36 views

What is the chemical reaction in a home-made high-bouncer ball?

I took the kids to the Science Museum in Canberra (Questacon) and one of the toys we brought back was a Home-Made High Bouncing Ball. Now I did it with the kids and it was amazing. You pour the ...
2
votes
1answer
52 views

How does potassium nitrate work as an oxidiser?

Potassium nitrate is very popular compound in pyrotechnics, used as an oxidiser. It can be mixed with sugar to make a "rocket candy", with coal and sulphur to form black powder. You can stick it on ...
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21 views

Does potassium nitrate + sugar solution degrade?

I have created a solution of $\ce{KNO3}$ and table sugar in order to create fuse from hemp rope. I wet the rope in the solution and let it dry - I repeat this process several times. It works and ...
5
votes
1answer
105 views

Why is sugar used in low-cost homemade rockets?

I was thinking about making a "rocket candy". It's relatively inexpensive rocket based on sugar and some oxidiser, mostly $\ce{KNO3}$. The fuel is usually formed by heating the mix of both compounds ...
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0answers
54 views

Best Invisible Ink for Clothing

I am interested in writing and revealing a message in invisible ink for theatrical purposes. I found a list of potential compounds here but I am having a hard time prioritizing which to ...
-1
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1answer
29 views

pH of baking soda in water? [closed]

If I dissolve 1g of sodium bicarbonate powder into 400 ml of distilled water, what will the pH of the resulting solution be?
2
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2answers
124 views

Are there any solvents that dissolve talcum powder?

I understand that talcum powder is insoluble to water, would alcohol or something be able to dissolve it?
5
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2answers
77 views

Baking soda bath to deacidify newsprint?

I have some oil-pastel sketches on newsprint I would like to treat for framing (and longevity). My plan is to rinse them in a deacidifying bath, then use wheat paste to wet-mount them to heavyweight ...
1
vote
1answer
86 views

Why does steel wool catch fire when rubbed with a battery?

I was watching an episode of Man vs Wild where steel wool was rubbed with phone battery. To my surprise, the wool caught fire. What is the reason for this?
0
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0answers
55 views

Separating citric acid from sugar

I'm trying to get as pure citric acid as possible from a mandarin. It's not because I desperately need citric acid, but because I want to achieve this. I started by grating the mandarine and ...
3
votes
1answer
76 views

Black Smoke Produced from Regular Lighter but Not Torch Lighter Applied to Copper

I have a piece of copper mesh from which I would like to remove all coatings/oils. The copper comes from a pot scrubber like this. In order to remove any residue, I held a standard bic lighter up to ...
5
votes
1answer
129 views

Scary jelly forming on zinc anodes

I'm continuing with my electrolysis experiments. Over a long time, I seek a perfect electrodes. It seems, that when you pick the right anode and cathode, it might be a lot cheaper than universal ...
3
votes
2answers
89 views

Homemade filter paper

I used normal paper from my notebook to perform filtration. The filtration is 100% perfect, but takes incredibly long to happen, because the paper is too dense. I'm not planning to buy filtration ...
0
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0answers
16 views

How to get sodium from sodium aluminate?

The sodium aluminate is formed when aluminium or aluminium hydroxide reacts with water solution of lye. After drying the water you'll end up with white crystals - sodium aluminate. I was wondering if ...
1
vote
1answer
24 views

Home-made way to detect lye in solution

I believe that electrolysis of salt water creates lye ($\ce{NaOH}$ - sodium hydroxide). In salt water, there's $\ce{Na+}$, $\ce{Cl-}$, $\ce{H+}$ and $\ce{OH-}$ as of ionts. So at cathode, you get ...
2
votes
2answers
34 views

Extracting silver from Tollens test

When we add tollens reagent (diamminesilver(I) cation, $\ce{[Ag(NH3)2]+}$) to glucose it forms a silvery mirror on the walls of the container. Since the sides are coated with actual Silver, is ...
0
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2answers
80 views

How to separate HCl and NaOH from an aqueous solution of NaCl?

At home I make experiments on salt (as it is easily available at home). One day I came to know that on mixing salt and water I will get Hydrochloric Acid and Sodium Hydroxide. So I became really ...
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2answers
41 views

Can I use Sunflower oil to make soap?

When reading about making glycerine soap, the recipes suggested to melt animal fat and mix it with $\ce{NaOH}$. Could I use Sunflower oil instead? Or a olive oil for nice flavor? Is heating necessary ...
1
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1answer
27 views

Siliconization for Organic Compounds

I was wondering if it was possible to create Silane from Methane using the process of siliconization to replace the Carbon with Silicon. For example Silicon Carbide is produced by replacing C-C bonds ...
1
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2answers
95 views

How can I get a hand sanitizer solution to form a gel?

I am trying to formulate a gel hand sanitizer for a thesis project. The sanitizer that I have right now is watery and will not gel. My teacher told me to change our formulation because it is not ...
3
votes
1answer
54 views

How do I seperate graphite powder from light oil?

I have a sample of very fine graphite powder suspended in light oil. I've attempted to seperate the two by placing the mix in a 2 micron filter sock. The oil will slowly drip through. If I apply ...
2
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0answers
50 views

How do I measure the density of a cellulose acetate membrane?

I've been playing around with filtration methods, and got my hands on a casting machine for this purpose. My first mission was to find out how porosity can affect filtration. To see this for myself, ...
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0answers
61 views

Low Melting Glass

What kind of glass can I purchase that will melt in a Bunsen burner flame? Follow up question: Is there any way to treat glass such that the melting point is lowered? I tried adding some sodium ...
4
votes
2answers
93 views

Safety when handling cyclohexylamine in non-industrial amounts

Today I was pipetting some cyclohexylamine into smaller bottles so that I don't have to use the liter flask every time I need a little bit of catalyst or plasticizer. I pipetted several 10-20 mL ...
4
votes
1answer
36 views

How does a Microbial Fuel Cell work?

I am doing a science fair experiment about Microbial Fuel Cells and was wondering how exactly do they work? I know the basics, that they work similarly to a normal Fuel Cell through oxidation and ...
3
votes
1answer
55 views

Any possible additives to a drain cleaner I use as a source of NaOH?

It is in pellets. And the box says main ingredient $\ce{NaOH}$ at least $30\%$ (I hope it's more). The box also says "aluminium catalyst". My goal was to take these pellets and dissolve them in water ...
5
votes
1answer
88 views

Is there a means to measure pH without indicators?

I have created a solution that should contain hydroxide ions. Therefore, the pH > 7, but is there any way to roughly estimate the pH in absence of any indicator? Maybe using current, or checking ...
1
vote
2answers
55 views

Is there anything funny I can do with chemicals in glowsticks?

I particulary enjoy performing chemical experiments without buying any chemicals for them. I was always sad about the fact that one glowstick lights out, you just throw it into trash can (I like all ...
3
votes
1answer
61 views

How do erasable pens work?

I understand the principle behind an eraseable pencil. Graphite is highly slippery, you rub it onto the paper, and an eraser can rub it off again. I've had friends at school with 'eraseable ink ...
0
votes
1answer
50 views

Solar still and how it works

I use a solar still that holds 182 cubic feet of water. Here is how it works: There is an insulator on both sides of the metal bowl. On the outside it covers the whole thing. on the inside it covers ...
2
votes
1answer
74 views

How to create a simple do-it-yourself procedure to measure diffusion?

While I am not asking the question here, a recent question concerning osmosis at the Bio SE caught my interest. In a nutshell that question was, given isotonic solutions of sugar inside and outside an ...
0
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1answer
43 views

Can I use harvested plants to gain electric power?

I was just thinking - plants are mostly acid. Even grass is quite acid. Could you create battery cell from squashed plants (after cutting them in pieces)? How much effective would it be? Could you ...
0
votes
1answer
49 views

What copper oxide is being created upon electrolysis?

Whenever using copper as anode, I end up with cyan dust that doesn't dissolve in water. What's that (presumably) oxide? Is it poisonous? Can I dissolve it in something to perform electroplating ...
1
vote
1answer
79 views

Can I perform electroplating with sodium carbonate and copper?

I want to avoid anything poisonous during electroplating. I can't avoid copper oxide though. I have dissolved $\ce{Na2CO3}$ in water and I'm trying to electroplate aluminium with copper: As you ...
1
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2answers
46 views

How do I make a simple home destillation device? I got two flasks. Whats next?

Like this: I have two medium sized glass flasks. And I understand I need a T shaped adapter from the first flask that will connect the thermometer and the condenser. Then I also need the condeser. ...
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0answers
65 views

How can i detect Formalin in food easily

I am trying to detect formalin in different types of food. Formalin $(\ce{CH2(OH)2})$is an aqueous solution of formaldehyde, which is $\ce{CH2O}$ or $\ce{H2CO}$. I used many chemicals to do this, but ...
5
votes
1answer
148 views

Why does increasing number of salt bridges increase voltage of electrochemical battery?

In an experiment, I set up a cell with lead nitrate (w/ lead electrode) and zinc sulfate (w/ zinc electrode), with a salt bridge containing potassium nitrate. I observed that by increasing the number ...
2
votes
1answer
83 views

Is it possible to synthesis adenine, thymine, cytosine, or guanine at home?

I'm wondering if there is any way to create adenine, thymine, cytosine, or guanine from chemicals available to anyone, using basic lab equipment.
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115 views

How to break down soap and detergents?

I am building a greywater harvesting system. I have all of it designed except one aspect. It is a 3 phase system. The first phase breaks down soap and detergents. The second phase filters the water. ...
2
votes
1answer
126 views

Identification of zinc/aluminium/magnesium with copper sulphate solution

We are doing an experiment and would like to be able to identify zinc/aluminium/ magnesium . Would a copper sulphate solution work ? I hear that it turns black on contact with zinc, stays clear on ...