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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1answer
49 views

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 ...
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1answer
400 views

Difference between ginger essential oil and ginger powder [closed]

I'm planning to prepare natural toothpaste. Some recipes include ginger essential oil while others include ginger powder. What is the difference between them? Will ginger powder be as effective as ...
5
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1answer
96 views

How much yeast is necessary to produce the same amount of carbon dioxide that I exhale?

I think I might have bed bugs. I read that bed bugs are attracted to $\ce{CO2}$ and heat, I also know that yeast produces $\ce{CO2}$ as a waste product. Knowing that, I did some research and found ...
2
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1answer
103 views

Designing a device to separate water from water-ethanol mixture using dry ice baths

I've been trying to design a device to increase the percentage of ethanol and water, or to at least concentrate the water-alcohol mixture without using distillation. The way I'm trying to do this is ...
1
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0answers
271 views

Multi-solvent recrystallization to extract solute from glycerol?

I have compound A contaminated with impurity B. Recrystallization in water would not yield pure compound A since impurity B is less soluble in it. The only solvent in which substances A and B have ...
4
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0answers
111 views

Waterproofing and recycling paper

I've recently begun studying about waterproofing paper. Through what I learned is that the reason why paper absorbs water so easily is mainly because of it's material composition. Paper is generally ...
8
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2answers
829 views

How to tell between carbon powder or graphite powder?

I have a black powder that I cannot reliably tell just by looking or touching whether it is graphite powder or charcoal powder. Are there any simple tests that I can perform to tell whether it is one ...
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1answer
520 views

Making 250mL of 0.1M NaOH [closed]

I measured out approximately 1g of NaOH pellets . I then transfer it into a volumetric flask and transfer some amount of distilled water into the flask and dissolve the pellets before filling the ...
-1
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1answer
109 views

Handling reagent bottles

I have done an experiment to prepare a standard solution. To keep this standard solution , I'm going to put it into a reagent bottle . If this reagent bottle is clean but not dry , what must I do ? ...
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0answers
30 views

failed simple experiment with surfactant

I wanted to show my son the effect of a surfactant. So I filled two small glasses with tap-water, added a squirt of RinseAid to one and stirred. Then I sprinkled powdered flour on both. My ...
2
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1answer
38 views

Keeping an open, partially empty soda bottle bubbly longer

I remember as a kid being able to get a little pump which you could screw onto a half empty soda bottle (I believe the bottles were glass at the time) to pump air into it to keep it fizzy for longer. ...
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0answers
162 views

Windex and Red wine

The other day I was cleaning my counter tops with windex. There was a couple red wine (cabernet sauvignon if it makes a difference) stains from the night before and the stains turned an gray/blue ...
4
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1answer
147 views

How to measure ratio of Na to K in table salt?

Some people state, that the salt which we buy at the supermarket contains too much potassium chloride. For me it seems to be a hoax, but I want to have a proof. Is there any way to measure the ...
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2answers
252 views

Flammable lighter than air gases (safeish)

I'm an artist currently using propane and butane in my show where I put the gas into a soap bubble and light it to produce a nice flame. But I'd like to start working with a lighter than air ...
1
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0answers
28 views

What is the most simple way to cut through a steel with very thin aluminum coating to obtain cross section without damaging the coating?

I needed to take cross section characterization of an aluminum coating. I tried to use a hand saw to cut through it, but it destroys the coating, and usually is separated with the substrate as I ...
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0answers
256 views

Keep two Mica Powders separate in oil and water mixture [closed]

First off, apologies if this isn't the appropriate place to ask this, let me know and I'll remove immediately. I recently acquired some Mica Powder Pigments, and they are fun the play with. I mixed ...
1
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0answers
681 views

Making elemental phosphorus from phosphoric acid [closed]

What is the most efficient way for making pure or semi-pure elemental phosphorus, by using phosphoric acid as an source of phosphorus?
12
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3answers
5k views

Improving Elephant Toothpaste experiment

we are trying to perform the Elephant Toothpaste experiment involving the reaction of yeast and Hydrogen Peroxide for the students at school. However, the results have been very underwhelming, likely ...
2
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1answer
65 views

Do chemical garden coral formations leach toxins?

Short version, I want to make a coral garden with sodium silicate and salts, and I would like to put that in my fish tank, but I'm concerned about the fish getting poisoned. https://en.wikipedia.org/...
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0answers
33 views

How to safely change the color of a fire tornado?

So I've been watching a lot of fire tornado videos and I came across one that had a reasonable and safe setup (around the 3:23 mark): Fire Tornado DIY Is there a way to change the color of the fire ...
5
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0answers
91 views

Reaction of Rubidium with vacuum system viewport

I have a vacuum system ($<1\times10^{-7}$ mbar) filled with Rubidium ($^{87}$Rb) vapour, at room temperature. We also have a viewport near the Rubidium source, made of a stainless steel flange ...
5
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0answers
66 views

Fractal patterns on water

I stored water in a bucket (of aluminium probably), and some random fractal-like patterns are formed on the water: See here for some more pictures. Why this happened? I'm unable to reproduce it. ...
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0answers
266 views

Platinum-coated razor blades for making a fuel cell

My daughter wants to construct a fuel cell for a school project. Budget is tight and platinum as preferred catalyst expensive. I know that Gillette razor blades are coated with platinum. Would there ...
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1answer
325 views

Black Sludge Appearing When Making Iron Oxide Through Electrolysis

I am trying to make iron-oxide through electroylsis to make thermite. I'm using nails for the iron on the positive electrode in salt water. While there definitely is a good amount of rust collecting, ...
5
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1answer
115 views

Grey “skin” on gallium

I have a sample of gallium (a few grams). I've noticed every time I melt the gallium and refreeze it, it forms this grey skin on the outside. When I remelt the gallium, this portion doesn't melt and ...
3
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1answer
234 views

How to determine fire hazard of heating ethylene glycol to dissolve borax and boric acid

I am looking to replicate instructions provided in the last paragrph of this article that requires dissolving borax (Sodium Tetraborate decahydrate ($\ce{Na2B4O7·10H2O}$)) and boric acid in ethylene ...
4
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1answer
321 views

When are all cannabinoids infused into grape seed oil using non-decarboxylated, dried plant matter? [closed]

I am unsure which is the correct terminology, infusion or extraction? For all practical purposes I will continue using infusion here. (What is the difference between the two?) When making the ...
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1answer
2k views

Making nylon experiment - Questions

I made nylon in a lab with these procedures - 1) Collect 30mL of sebacoyl Chloride dissolved in hexane 2) collect 30mL of 1,6-hexanediamine dissolved in water . 3) Transfer the beaker containing ...
3
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0answers
277 views

Dubowski’s Formula vs Henry's law applied to alcohol sensor 'calibration'

I'm working with some hobby-level gas sensors and I've run across a "calibration" system I don't understand. A general description of this kind of gas sensor is described a bit more in this question ...
18
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1answer
1k views

Can I eat the lemons after I have used them as a battery?

After completing the lemon battery experiment, can I eat the lemons when I'm done? More broadly, what will happen to the lemons? What are the chemical reactions, what chemicals might be present/...
0
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1answer
89 views

Combustion of Rocket-Candy with Fe2O3

We know from Wikipedia that the combustion of rocket candy follow this equation : $\ce{48 KNO3 + 5 C12H22O11 → 55 H2O + 36 CO2 + 24 K2CO3 + 24 N2}$ We can add small quantity of iron (III) oxide ($\...
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0answers
123 views

Can Pyrex laboratory grade glassware be heated on a stovetop?

I don't have access to a hot plate, I was wondering if Pyrex glass can be safely heated on a stove top. It isn't an open flame, it's a radiant stove top with an electric coil underneath a smooth ...
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0answers
199 views

What is substance that has high melting point in its powder form?

In laminated glass bending process 2 glass sheet will be superposed in a furnance.The seperation powder will be interposed between layer for avoid 2 glass sheet being bound together. I'm trying to ...
1
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2answers
587 views

Recrystallizing Sodium Acetate from solution

I made sodium acetate using the following reaction: $$\ce{NaHCO3 + CH3COOH ->CH3COONa + H2O + CO2}$$ The resulting solution of sodium acetate isn't pure, it has impurities. I want to crystallize ...
1
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1answer
72 views

Determining the chemicals in potash and crystallizing them

I have made potash by leaching wood ash in water. The potash in solution has a high pH indicating it is alkaline, and reacts with acetic and citric acid. Is there an easy way to determine the ...
2
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0answers
368 views

What chemicals are in hard wood ash? (Making lye)

I am trying to make lye or potassium hydroxide. So far I have been leaching ashes in a barrel for a few days. I decided to do some tests on the water to see if it was working. My pH paper said it was ...
6
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1answer
1k views

Will KOH work in place of NaOH as the electolyte in the electrolysis of water?

I am making a hydrogen and oxygen generator by electrolysis water. I found out that using salt as an electrolyte creates a compound of chlorine and oxygen with my electrodes clouding up the water and ...
2
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1answer
3k views

How can I emulsify Beeswax with Aloe Vera Gel?

I was looking thru ingredients for non-silicone based makeup primers and two ingredients always seem to be used: aloe vera gel and some type of wax, like jojoba wax, plus some type of oil to thin out ...
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0answers
139 views

Elephant Toothpaste demo: How to concentrate hydrogen peroxide (freezer?)

I would love to do an 'elephant toothpaste' demo in my Chemistry classes this week, but I do not have enough time to order 30% $\ce{H2O2}$ from a supply company. I have been reading (and seeing on ...
2
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0answers
81 views

Is suckback possible after removing stopper?

I am making hydrogen gas to fill a balloon. I will run the gas to a washing bottle with $\ce{NaOH}$ and then connect the balloon. I was wondering what would happen if I removed the stopper of my main ...
4
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4answers
9k views

Melting point of obsidian

I have tried 4 experiments at various temperatures to melt obsidian. At varying temperatures it just bubbles up and I don't seem to reach a melting point. Do you know what gases obsidian might ...
6
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3answers
1k views

Will this reaction form magnesium carbonate?

I have magnesium oxide pills I take. I know if I dissolve them they'll form magnesium hydroxide, and I'm trying to make pure magnesium from my pills. I've come up with a double replacement reaction, ...
2
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1answer
76 views

How do I cool my water bottle immediately for an emergency use?

What are the chemicals I can use to cool my water-bottle at once if I'm stranded in a desert and I have only chemicals to cool water? (I'm keeping those chemicals outside my water bottle and not ...
21
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1answer
5k views

What is behind of the attraction between a burned matchstick with a magnet?

I do not know how to understand the reasons of why a burned matchstick is attracted by a magnet (most probably) of Neodymium. Here are some screenshots of a video in which this natural phenomenon is ...
3
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1answer
1k views

The effect of baking soda on water electrolysis

Ok, so now I have a new question, what type of electrode should I use. I am intending to use a simple stripped wire as my electrode, but am concerned whether the average copper wire would react and ...
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1answer
2k views

Why doesn't Calcium Carbonate Burn? [closed]

I was doing my Science Fair Project and I tried to burn Calcium Carbonate. But the match went out as soon as it touched the Carbonate. I am wondering why the Carbonate isn't burning. I later tried to ...
1
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1answer
921 views

What happens to potassium iodide in the “elephant Toothpaste” reaction?

General Questions on "Elephant Toothpaste" Equations: 1)$\ce{~2H2O2(aq)->2H2O(l) + O2(g)}$ Context: I have a few questions on the reaction commonly referred to as "Elephant Toothpaste". You ...
2
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0answers
94 views

HCl and chrome plated plastic [closed]

I was trying to use $\ce{HCl}$ (muriatic acid) to remove chrome plating from plastic chrome plated shower parts (shower head holder) in order to make chromium chloride. I understand that in chrome ...
1
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1answer
118 views

At home Rochelle's salt synthesis

I tried to make Rochelle's salt. It didn't work! 7 oz cream of tartar 1 cup distilled water heat to 180 F and keep there add 1/2 tsp sodium carbonate at a time until there is no fizzing filter and ...
12
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2answers
3k views

Why doesn't liquid propane in a closed coke bottle burst?

I was watching this YouTube video in which the original experiment was to make a small rocket out of liquid propane and Coke. When that failed, the person doing the experiment decided to try pouring ...