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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0answers
37 views

Homemade napalm [closed]

What does gas and or acetone, oil and gunpowder make when finished mixing and left to dry and harden? My most recent attempt resulted in a hardend black extremely flammable material similar to ...
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20 views

more positive or negative elements [closed]

I was reading somewhere that said, copper is more positive than Iron. They also went on to say that Aluminum is more negative than both copper and iron. If you wrap the copper in aluminum, that will ...
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1answer
19 views

Properties of starch in packaged pudding

I had a mug of packaged pudding. The top layer of the pudding was of typical pudding consistency, while the bottom was more runny. What could have caused this?
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21 views

Reaction of hot sodium bicarbonate solution on aluminium foil

I was really curious about finding out how sodium bicarbonate reacts with aluminium metal. For this, I prepared a sodium bicarbonate solution and added a piece of aluminium foil to it. I scraped the ...
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1answer
46 views

Why polyethylene (PE), wool (polyamide) and cotton (cellulose) burnt with different smells, while they just product CO2 (and N2)?

Both PE and cotton produce CO2, but they distinctly have different smells while being burnt (Burning PE has smell of candle wax, while burning cotton’s smell is like burning leaves). Wool produces CO2 ...
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1answer
35 views

I want to make NaOH from NaHCO3, what is the easiest way to do it without electrolysis? [closed]

I want to make NaOH from NaHCO3. I can't use electrolysis as I lack the proper equipement.
5
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1answer
212 views

Unexpected result (sodium hypochlorite & steel wool)

So I got myself a large Erlenmeyer flask, some steel wool and the bleach from the bathroom, mixing them under safe conditions in small quantities to see the sparky reaction I'd heard about. Trouble is,...
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18 views

How can I make a reference humidity environment with NaOH pellets? [duplicate]

I have NaOH pellets at my disposal. Some of the pellets are degraded, but most are not, and I can provide a new batch if needed. I would like to test several humidity sensors in an environment with a ...
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1answer
40 views

Aluminum Oxide + Epsom salt ⮕ aluminum sulphate + Magnesium oxide [closed]

I was wondering that if you wrapped some Epsom salt in aluminum foil and set it on fire would you get aluminum sulphate and magnesium oxide, I couldn't find anything about this on the internet
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39 views

Balanced equation for Schweizer's reagent production?

In Thompson's Illustrated Guide to Home Chemistry Experiments the chemical formula for Schweizer's reagent is represented as $\ce{[Cu(NH3)4](OH)2}$ (although Wikipedia represents it as $\ce{[Cu(NH3)4(...
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34 views

Molar ratios not leading to complete reaction in Schweizer's reagent production

In my home lab, I've reacted $\ce{Cu(OH)2}$ with aqueous ammonia to produce Schweizer's reagent. However, I'm surprised by the amount of ammonia required to react with this amount of $\ce{Cu(OH)2}$. ...
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2answers
68 views

Sodium + water reaction, noxious fumes?

I was reacting pure sodium and tap water, and at one point I put some splattered sodium back into the water. I observed fumes that reacted with my respiratory system, producing a burning sensation. I ...
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1answer
117 views

Vinegar salt reaction to produce acid; does it matter what type of vinegar I use

I am trying to get get hydrogen chloride gas by using the reaction sodium chloride + vinegar = HCl(g) + sodium acetate, does it matter what type of vinegar I use eg apple cider vinegar, malt vinegar; ...
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1answer
47 views

Explaining the result of experiment---Aluminum foil heated in boiling KMnO4 solution

I've recently been thinking back to an impromptu "experiment" I performed almost exactly 3 years ago. The setup was as follows: A concentrated solution of KMnO$_4$ was produced by dissolving 2 ...
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71 views

Can I reverse an iron redox reaction with potassium hydroxide and electricity?

For a school project, about clean energy, me and my team are trying to build an iron battery. We are using a piece of iron (anode), potassium hydroxide (electrolyte), carbon electrode (cathode) ...
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0answers
120 views

Why my boiling pot turned black?

Recently I ran out of dish washing detergent, so I decided to pick up one of the recipes online, to make my own "ecological" dish washing detergent alternative. The recipe was: Mix ingredients: ...
2
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0answers
52 views

How to charge titanium dioxide particles for a DIY e-paper capsule? [closed]

I'm trying to make a single e-paper capsule (1 cm × 1 cm) at home. At first, I tried to charge the $\ce{TiO2}$ particles by putting them in $\ce{H2O}$ with $\ce{NaOH}$ and then putting that whole ...
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27 views

Electrolytes for Anodization at Home

I'm looking into anodization, and all the people doing it seem to have sulfuric acid as their first choice electrolyte, while others use sodium metabisulfate. Having simple access to exactly neither ...
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2answers
208 views

does table salt dissolve in glycerin [closed]

Tell me, does table salt dissolve in glycerin? And is it possible to increase its solubility? I have vegetable glycerin with nicotine that I use for vape. So that nicotine would not be bitter, on ...
2
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1answer
81 views

Looking for a radio-transparent epoxy/resin

I have much hobby experience with 2-part resins, but this time I'm looking to make a repair part for the inside of a microwave oven (everything I've tried so far heats up, but the original part does ...
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1answer
73 views

Is it possible to dissolve concrete with acid [closed]

So I have this question. Can you dissolve concrete with acid? I know that there are many types of concrete, but the common and dominant component, as far as I know, is $\ce{Ca3SiO5.H2O}$ (hydrated ...
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0answers
27 views

Two common fluids that don't mix inside a labyrinth [closed]

I'm not sure in which SE site put this question. Imagine a typical child toy, where a bunch of spheres move by gravity through a labyrinth. Now imagine a sealed small labyrinth with two fluids. I'd ...
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2answers
648 views

Can caustic soda (sodium hydroxide) be used to dissolve urine odour?

I have an area of artificial grass at home in the back garden and during the summer months, the area emits a smell which I can only think is from the dog's urine when he pees all year long. The smell ...
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0answers
207 views

Sodium bicarbonate, varying acetic acid, measuring carbon dioxide volume, understanding results

With my 6yo daughter, I have conducted a simple experiment. We used 1/4 tsp (we don't have sub-gram scales) of bicarbonate of soda for each test. In each test, we used a different amount of vinegar (5%...
3
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1answer
76 views

What (simple) household chemicals react with oxygen?

I'm interested in making a small "preservation chamber" that I can basically use to store objects without the presence of oxygen. I have a resealable stainless steel canister and the plan is pretty ...
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0answers
23 views

What type of acid (and how much) needed to generate Chlorine Dioxide gas when added to Sodium Chlorite (for odor removal)?

I have several lbs of Sodium Chlorite (flakes), which I would like to use to generate Chlorine Dioxide gas in order to remove odors from rooms, autos, boats, etc. There are commercial products sold ...
2
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2answers
145 views

Thickening and/or slowing evaporation of IPA-based ink

The conundrum I have a security printing ink that I make by adding an IR-absorbing dye to a 50/50 mix of Isopropyl Alcohol and distilled water. The ink solution is pale green but dries virtually ...
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0answers
28 views

How can I dissolve photography film?

I am looking to completely dissolve negative film strips. Acetone was my first try and did not work. If anyone knows/ or has any ideas i would be so greatful.
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21 views
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2answers
414 views

What is the best way to calculate the mass percentage of Calcium Carbonate from water?

Where I live it's believed that local tap water is really bad for drinking because of the amount of limestone. As a science experiment for school I wanted to approximately calculate the percentage of ...
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1answer
41 views

Simple tests for presence of CO₂

Am aware that one method for testing for the presence of $\ce{CO2}$ is passing the gas through limewater, with it going cloudy if positive. Are there any other convenient methods?
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1answer
44 views

How Can I Test Something for the Presence of Iodine? [duplicate]

I want to test a supplement for the presence of iodine. Iodine should turn starch blue-black. So, can I powderize the supplement tablet, add water to it, drop it on a piece of bread, and if it turns ...
0
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1answer
57 views

Nuclear chemistry home made [closed]

A boy in Memphis built 1 year ago a nuclear fusion reactor at his home . How did he achieve so high temperatures in order for the fusion to take place?The fusion that took place was 2 atoms of ...
2
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2answers
200 views

No current in homemade galvanic cell

I built a galvanic cell using 0.01 M solutions of copper sulfate and zinc sulfate. I used copper and zinc electrodes and immersed them into the proper solutions (copper into copper sulfate, zinc into ...
8
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3answers
733 views

Identify KNO3 and KH2PO4 at home

I am not expert in chemistry. I need to find a way to identify a $\ce{KNO3}$ and $\ce{KH2PO4}$ powder at home. I suspect the seller gave me the wrong powder. What is a simple way to test between these ...
3
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1answer
124 views

How can I increase the viscosity of dilute hydrochloric acid

I'm cleaning the mortar off a new clinker brick wall. Walls actually. I hate this job. The builder told me to wash down the wall with weak HCl, leave it for a minute or two, and then spray it off with ...
2
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2answers
181 views

Why is my sodium acetate not resulting in any crystals?

My son received a chemistry set for Christmas and we've been working through the experiments over the last few weeks. One of them involves boiling white vinegar and adding baking soda to produce ...
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0answers
72 views

How to make rheoscopic fluid using glycol stearate flakes

Rheoscopic fluid can be made by adding mica powder to water. I read that mica powder can settle and condense after sitting around for a long time. So I want to use glycol stearate flakes instead. ...
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1answer
51 views

Does coffee have the ability to dissolve less sugar into it than water?

Like water can absorb such and such an amount of sugar, can coffee absorb less as it already has coffee in it.
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0answers
57 views

What governs the amount of smoke produced by an extinguished match?

First Chemistry question, so apologies if this isn't quite in the spirit of this SE. I have noticed that when extinguishing a lit match by blowing it out, the amount of smoke produced can vary widely....
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2answers
241 views

Is citric acid is a anti foaming agent? [closed]

I added citric acid in my dish washing liquid. It stopped foaming. Iwant my liquid again to foam. because I prepared 4 litres of liquid. Please let me know how can i get back my liquid foam. please ...
3
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1answer
3k views

Full equation when using vinegar, hydrogen peroxide, and salt to etch copper

What is the full chemical equation when you use the following reactants to etch copper: vinegar / acetic acid (5%) $\ce{CH3COOH (aq)}$ hydrogen peroxide (3%) $\ce{H2O2 (aq)}$ salt $\ce{NaCl (s)}$ ...
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0answers
87 views

distillation of aqueous CAN solution for the purpose of a reversible and strong endothermic reaction in cool packs

I know calcium ammonium nitrate (CAN) is used for cold packs. By bending a small metal plate the salt gets dissolved in water (separated pack) and this process is endothermic. I would like to heat ...
5
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1answer
413 views

What are those… crystals?

I have been trying to make muratic acid from salt and phosphoric acid (didn't know that it's made at 150 °C). After waiting a few days, a third of the time it was sealed by placing a container over it,...
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1answer
89 views

How did early chemists measure mass of atoms?

Here a book says that Berzelius measured atomic masses using a simple lab and his measurements was so close to modern results. Can someone explain how a person living in 19th century was able to ...
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1answer
70 views

Making sulfate from elemental sulfur [closed]

I have $\approx\pu{2 g}$ of elemental sulfur that I need to convert to dissolved sulfate in DI water. What's the easiest lab chemistry that will get me there?
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1answer
66 views

Can hydrogen peroxide be oxygenated?

As per the heading, would peroxide be able to dissolve oxygen by whatever method, to have free oxygen and hydrogen peroxide mixed (under pressure?) similarly to $\ce{CO2}$ or $\ce{O2}$ in water? I ...
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3answers
267 views

Penny turns green with vinegar

What is the chemical explanation for pennies in vinegar turning green? What is the explanation at a macroscopic and atom-molecular level? The procedure is: Fold a paper towel so that it fits inside ...
6
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1answer
153 views

Electrolysis puzzle

I created an electrolysis setup to study how different electrolytes, their concentrations, and the electric current affect the "speed" of the electrolysis process. With that in mind, I built a simple ...
1
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0answers
290 views

What is causing a blue colour when sodium bicarbonate, vinegar and aluminium are reacted together? [closed]

My 10 year old has been experimenting in my kitchen! The other day he wanted to know why when he reacted bicarb soda and boiling vinegar in a container with some aluminium foil, the solution turned ...