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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2answers
738 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 ...
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1answer
78 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 ...
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0answers
443 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 ...
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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 ...
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1answer
4k 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
152 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 ...
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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 ...
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4answers
10k 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 ...
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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, ...
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1answer
83 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 ...
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1answer
6k 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 ...
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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 ...
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1answer
1k 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 ...
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0answers
101 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 ...
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1answer
122 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 ...
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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 ...
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1answer
91 views

Function of water and the need of two barrels in a biogas Generator

For my chemistry assignment, I have to build a biogas generator. I found the following diagram, This is the website that the image is from: http://www.motherearthnews.com/renewable-energy/other-...
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1answer
256 views

The safety of homemade slime

Disclaimer: I am not a chemist, but I figured this may be the place to ask. So, recently, there has been a lot of news going around about the homemade slime burning a child's hands and I got curious ...
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0answers
479 views

Why does the open circuit voltage of a battery decrease with increase in pH of electrolyte, but the voltage across a load increase?

I tested a cell which had aluminum sulfate as its anode electrolyte (12 grams aluminum in 50 mL water and a pH of 3.2), and potassium hydroxide as the cathode electrolyte (5 grams of KOH in 200 g of ...
3
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1answer
380 views

How to measure/know the moles of carbon dioxide (as dry ice) when in KOH solution

I am doing an experiment where I am dropping dry ice in a $\ce{KOH}$ solution. I want to know how I can figure out how many moles of $\ce{CO2}$ reacted with the $\ce{KOH}$. I am pouring $25 \,\mathrm{...
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0answers
1k views

Home science optical absorption test for approximate caffeine quantity in coffee?

I started with How can you measure the caffeine content of a liquid at home? in the cooking stackexchange, but the test strips were only qualitative (yes/no) and don't seem to exist anymore, and the ...
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1answer
93 views

Reacting carbon dioxide with magnesium in ribbon form

My experiment involves a reaction of magnesium in ribbon form with that of carbon dioxide. I know that the product shall be magnesium oxide (white powder) and carbon (black powder) but I do not know ...
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1answer
2k views

Will adding apple cider vinegar to freshly pressed fruit juice preserve it

Would adding apple cider vinegar to freshly cold pressed fruit juice be able to preserve the fruit juice and extend its shelf life? Would the juice change into vinegar with time?
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1answer
1k views

Chemical reaction in homemade deodorant

Which ingredients in my homemade deodorant recipe are causing it to froth and overflow its container? Is there something I can add to stop this reaction? Ingredients: Magnesium oil (made from ...
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3answers
1k views

Is it known for sure that bases feel slippery because of the production of soap/surfactant?

Discussion around the question Why does bleach feel slippery? has started me thinking about the saponification explanation for the slippery feeling of basic solutions. According to Wikipedia: ...
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2answers
6k views

Why does bleach feel slippery?

My high-school chemistry teacher taught us the mantra "bases are slippery-soapy-slimy!" This question and this answer in Quora say this is due to saponification - conversion of lipids from the top ...
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2answers
1k views

Is home synthesis of cellulose acetate possible, and why?

Is it remotely possible to synthesize detectable quantities of cellulose acetate from materials available in common department stores (such as cotton balls, vinegar, and battery acid) and using tools ...
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1answer
1k views

What caused this reaction between chlorine and brake fluid?

I recently saw a video on Facebook of a couple of people pouring brake fluid into a bottle containing pool chemicals (chlorine pellets, I believe). Now this was a rather strong exothermic reaction, ...
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1answer
47 views

Why green leaf turns brown in Brine solution?

I immersed a semi dry green leaf in glass of concentrated NaCl solution . I left it in mild sunlight for around 3 hours . Solution before was clear but afterwards it became reddish brown and the color ...
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0answers
49 views

Is it a good idea to build a small scale ozone AOP reactor in my garage?

I have some interesting findings from my work (no conflict of interest), and I have been thinking to build an ozone lab in my garage to verify my ideas. What safety issues should I be aware of? The ...
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1answer
756 views

Copper Sulfate Pentahydrate experiment, help please?

My science project specifies me to make seed crystals of copper sulfate. We must use the powder form to make seeds. There are two types of copper sulfate pentahydrate; one is granular form (small ...
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1answer
435 views

Seashell and grape juice

My daughter is working on a 5th grade science fair experiment. She soaked white seashells in various drinkable liquids to test the effects of those liquids on teeth (teeth are represented by ...
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1answer
118 views

making patinas for copper

Copper nitrate, calcium carbonate and ammonium chloride mixed will patina copper green. I need to know If calcium carbonate should be a heavy powder or a reagent. If calcium chloride is a dehydrate ...
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0answers
356 views

Unknown white stuff from eggshell reaction with acids and bases

I have just finished some experiment at home using tea eggs. First I peel off the shell of the tea egg and place it in a bowl of white vinegar (of course, I consumed the rest of the egg). Not ...
2
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1answer
216 views

How to create 1-100 ppm ethanol gas?

I am trying to use TGS 2602 sensor of air contaminants. I would like to test if my circuit is working as intended. For that purpose I need to generate fumes of one of the gases the can be detected by ...
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1answer
775 views

Neutralising sulfuric acid but not boric acid

I have another question here which refers to me asking how to separate boric acid from other compounds, and this is partially a follow-up. Suppose I was to go down the route of making boric acid by ...
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2answers
10k views

What reactions occur when mixing copper sulfate and sodium hydroxide?

I tried reacting copper sulfate with sodium hydroxide to get copper hydroxide, which should precipitate, according to the following equation: $$\ce{2NaOH + CuSO4 -> Cu(OH)2(s) + Na2SO4}$$ I ...
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1answer
265 views

How is solid PVA filament (for 3D printing) synthesized?

Polyvinyl alcohol (PVA; also referred to as: PVOH, PVAl) filament--the sacrificial support polymer filament used in 3D printing, how is that made? All the reactions I've seen that make PVA create a ...
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1answer
148 views

Unknown salt formed from electrolysis of urine

I am not sure what I was expecting to happen with this but I created a circuit to electrolyze various household liquids. My electrodes are copper — or at least claim to be, I think they might just be ...
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0answers
239 views

Starch gelatinization, retrogradation and disgestability

Over on the sub-reddit on prebiotics we're a bit stumped on figuring out the process for turning raw potato starch (mainly containing R2 resistant starch) into R3 via retrogradation/gelatinization. ...
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2answers
338 views

Simple experiment to do at home that involves acids and bases? [closed]

so long story short I am in the IB Diploma and I am required to come up with an experiment to investigate pretty much anything to do with chemistry. I'm thinking about doing mine on investigating how ...
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0answers
221 views

Processing Chitosan from Crab Shell

I am trying to extract chitosan from crab shell (Japanese snow crab). I want to dissolve chitosan in water and mix in gelatin to obtain some type of gel, that I would then test for my Master 2 ...
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1answer
522 views

How to make Poinsettia pigment into ink?

Like many families, this winter we had bought a red poinsettia plant to decorate our kitchen, and now that it's losing its leaves, I had the genius idea to extract the red pigment. The activity proved ...
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1answer
186 views

What home products are reactive with glass?

Glass seems to be one of the most stable solid substances - which chemicals, particularly home products that react with glass?
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1answer
66 views

Which chemical reaction to use to remove carbon/peat from sieved earth/gravel?

I produce gravel for my aquarium by sieving and rinsing earth from my garden. After boiling and disinfecting it (with a solution against parasites) the rest of the organic material are composted or ...
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2answers
143 views

How was the bottle crushed by air?

In this video, a water bottle is shown to be crushed by the surrounding air. My understanding: When the person pours cold water over the bottle which has hot water inside it, the hot water produces ...
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1answer
4k views

What is the chemical process which causes paints to dry? [closed]

How does paint dry? What is the chemical process?
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1answer
4k views

What chemical reactions take place when mixing baking soda with citric acid and epsom salt and putting it into a microwave oven?

When I mixed in a bowl baking soda, citric acid and Epsom salt, then put it in the microwave between 30-60 seconds, the mixture will start to fizz and puff up, kind of like dough rising. What is ...
4
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1answer
107 views

What kind of string to use for the ice fishing experiment for kids?

Classic ice fishing experiment for kids. I used nylon because I saw it in a stationery, and apparently that doesn't work because I guess it's too slippery. I tried thread from my mom's sewing kit, ...