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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14 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 part for the inside of a microwave oven (everything I've tried so far heats up, but the original part does not). I ...
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1answer
60 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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22 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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152 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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54 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%...
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1answer
57 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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19 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 ...
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1answer
51 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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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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157 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
39 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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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 ...
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1answer
54 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 ...
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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 ...
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3answers
722 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 ...
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82 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 ...
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1answer
89 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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43 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
47 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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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
138 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 ...
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1answer
2k 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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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 ...
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1answer
404 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
82 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
56 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
59 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
178 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 ...
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1answer
132 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 ...
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167 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 ...
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1answer
156 views

Why does my sodium acetate look like metalic magma?

I tried to make sodium acetate. Ingredients: Store bought vinegar - 8% acetic acid, water, E150C (caramel) Baking soda - $\ce{NaHCO_3}$ Steps: I first emptied sacks of baking soda to a ...
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1answer
839 views

Colored Flames Experiment

I am going to be doing a gender reveal for my sister's pregnancy. To do this, we wanted to light a huge fire pit and throw in a chemical to change the fire into the color (red/pink for girl, blue/...
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1answer
53 views

What are the best cleaning agents for carbon residues on glassware?

Introduction Recenly I wanted to isolate some ascorbic acid (Vitamin C or chemically - $\ce{C6H8O6}$). I've put the filtered solution (I had to filter it because of the binder) in a flask and heated ...
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1answer
60 views

How can I safely store highly outgassing self-pressurizing chemicals?

I have a standard copper etching solution of 1 part $\pu{10M}$ $\ce{HCL}$ and 2 parts 3% $\ce{H2O2}$ (as described in numerous places online). I previously had this stored in a tightly-sealed glass ...
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1answer
52 views

What would happen if you heat volatile/flammable material in a vacuum? [closed]

Fire is an oxidizing chemical reaction, in the simplest sense it needs oxygen and fuel to burn in order to stay alight. But what reaction would you observe from a flammable substance like gasoline or ...
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3answers
4k views

How to test for methanol?

I wanted to make some ethanol from baker's yeast and I used sucrose. I've made it and put it in a glass jar. I left it on a warm place (near the radiator) until the yeast died and after they died I ...
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1answer
70 views

What is chemically different about tea for hard water?

At the supermarket they sold tea for hard water. (Hard water is water with limestone/calcium carbonate in it). There appears to be a chemical modification for foods using this type of water. My ...
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1answer
71 views

Is it possible to melt HDPE to a point where it has similar viscosity to engine oil?

I have a few pieces of HDPE that I want to melt and cast into a cube of around $\pu{5 cm}$ each side, similar to what one would do with cast resin. I tried putting it into an oven and heating it to $...
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141 views

What acid did I accidentally create, and how?

So, I wasn't trying to do a chemistry experiment this evening; it was entirely unintentional! I was mixing up a batch of fertilizer for my plants (no nitrates involved, so I wasn't worried about ...
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47 views

Reaction of heated cupro-nickel in isopropanol or methanol

There are a number of youtube videos where someone heats a US quarter (which is copper sandwiched between layers of 75% copper, 25% nickel) to red heat and cooling it in methanol. This results in a ...
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36 views

Colorimetry at home?

Is there a reasonably priced option for colorimetry at home? Is this even a good option to accomplish my goal? I'd like to roughly determine the concentration of a chemical in an ethanol extract from ...
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1answer
50 views

What is the modern hardware/supermarket term for 'laundry bluing'?

I want to make this amazing paper Crystal Tree with my kids. One of the ingredients is laundry bluing. It is described thus: The magic crystals that are left behind are a combination of the Mrs. ...
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What is the reaction involved in a childrens paper Christmas tree crystal growth?

For Christmas I bought my children a "Magic Growing Christmas Tree Crystal Paper Tree Christmas Decoration Science Toy". It looks like this: It came with a bag of liquid which you add to the tray at ...
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1answer
2k views

How to make pyramid-shaped NaCl salt crystals

I'm attempting to make sea salt pyramids like the one below. I understand this needs to be evaporated at a reasonable speed to stop the crystals forming a cube, as the when formed quickly, the edges ...
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486 views

How can I convert lidocaine HCL to lidocaine base

So I'm a hobbiest, no pro. I've got a formulation for a topical anesthetic I'm trying to mimic. It calls for lidocaine, ethoxydiglycol (aka. diethylene glycol monethyl ether) and a couple of oils. ...
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1k views

Are children's sparklers based on a magnesium reaction?

We were letting our kids play with sparklers on New Year's Eve, and my friend's son asked his Dad: What would happen if we threw the sparkler into the water? Would it keep burning under water. My ...
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1answer
68 views

Is it possible to protect molten magnesium with Butane

I am currently experimenting with simple methods of metal casting at home. It is conventional wisdom that magnesium is better left to the professionals due to the unfortunate arrangement of its ...
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1answer
397 views

Home test for magnesium carbonate

People that do rock climbing and weightlifting usually use magnesium carbonate on their hands to decrease slippery hands. I would like to know how can someone that buys MgCO3 can really be sure it's ...
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1answer
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Chemical reaction to produce 5 liter of gas [closed]

I'm looking for a chemical reaction in order produce about 5 liter of harmless gas. The goal is to start with something that takes as little volume as possible to start with, and reacts to fill up a ...