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].

Filter by
Sorted by
Tagged with
1
vote
0answers
33 views

Relative Humidity inside a thermally insulated chamber for a NACL solution

I ran an experiment, where I had to measure the relative humidity of a thermally insulated chamber containing NaCl solution. I have read from a few papers, that the relative humidity of a NaCl ...
0
votes
1answer
23 views

HCl labeled 31.45% concentration (20° Baume) [closed]

Just bought a standard concentration of HCl solution. The 31.45% is weight-by-weight & not weight-by-volume, correct?
7
votes
5answers
2k views

How can I roughly measure a fraction of a gram?

My son got a crystal making kit (from a relative) and it lists seed crystal weights of 0.5g for a small crystal solution and 0.75 g for a large crystal solution. The trouble is I (his father) don't ...
3
votes
2answers
101 views

Producing hydrogen sulfide—difficult to do much?

When I was young (nearly sixty years ago), my "chemistry set" taught me how to heat sulfur and candle wax to stink up the house.  It had no warning that hydrogen sulfide is toxic and ...
1
vote
1answer
68 views

Suppressing flammable foam formation in electrolysis

I often use electrolysis to remove rust and other junk off of steel parts. My general setup is: Electrolyte: Sodium bicarbonate + distilled water. Anode: Plain carbon steel Cathode: Carbon steel, ...
-4
votes
1answer
58 views

Spilled denat. alcohol (5% methanol) [closed]

I spilled a small amount of denatured alcohol (~3ml) on my skin and table while prepping microscope slides for springtails. The bottle says its 95% ethanol, with unspecified amounts of isopropanol and ...
1
vote
1answer
33 views

Can large, sticky, sodium polyacrylate crystals be coated in a powder to facilitate handling?

I am separating a larger container of sodium polyacrylate crystals into smaller containers for student experiments. Commonly known as "Deco Cubes" and used by florists in decorations and ...
1
vote
0answers
41 views

Is shampoo or soap a better emulsifier? [closed]

Made homemade shampoo using: Sodium lauryl sulfate (SLS) Glycerin 95% ethanol Sodium stearate Made homemade soap using: 20% sodium hydroxide Vegetable oil 95% ethanol 20% sodium chloride ...
1
vote
0answers
34 views

Converting dissolved chromates to solids for disposal

I have 4 liters of electrolysis waste that was used to process stainless steel cathodes. About half of it was oxalic acid based and the other half was sodium bicarbonate based (currently stored ...
1
vote
1answer
134 views

Can ferrous ions exist in an acidic solution?

Can Fe2+ ions exist in an acidic solution or will they always pick up available protons and become Fe3+? My hunch is they can't exist but I'm not really sure. If the latter, does that mean that ...
2
votes
0answers
66 views

What factors have the greatest effects on the yield from steam distillation of ginger?

I have a modest home lab setup that I use primarily for steam distillation of plant matter to extract essential oils. My yields are typically at or below the low end of estimates given by different ...
3
votes
0answers
93 views

Understanding electrolysis w/ oxalic acid electrolyte, iron electrodes

I've been experimenting with electrolysis for rust removal, electroplating, de-plating, etc. Right now I have a rust removal setup with carbon steel electrodes and a solution of oxalic acid in ...
-1
votes
1answer
55 views

Attempting to make Rochelle salt but obtained paste

I was attempting to make Rochelle salt by adding sodium carbonate to a mixture of cream of tartar and water, but ended up with a solid paste. I kept the cream of tartar/water mix boiling the whole ...
0
votes
0answers
24 views

How to make my water destillery most effective?

I got a destillery for water with a capacity of 10l and a get the most of a spiral cooler in a 1l cooling pot mounted on top. I'm happy with the efficiency, however there's always room for improvement ...
11
votes
2answers
131 views

Peak in beer freezing temperature plot

I left an open beer in the freezer while monitoring its temperature. The first minutes works as expected. But after the plateau, at about −8 °C, a peak appeared: I thought it was an artefact because ...
-1
votes
1answer
88 views

Reaction between sodium hydroxide and silicon dioxide [duplicate]

I was trying to make sodium silicate according to the following reaction: $\ce{SiO2 + 2NaOH -> Na2SiO3 + H2O}$ I used colloidal silica available as an intestinal adsorbent since reaction with ...
0
votes
1answer
54 views

Sodium acetate stoichiometry from baking soda and vinegar

I want to make sodium acetate from sodium bicarbonate and vinegar. I'm a bit stumped at calculating amounts of each reagent. I'm starting with 8% acetic acid vinegar. I was going to add, to 1 L of the ...
-2
votes
1answer
71 views

For home chemistry purposes can you treat sodium percarbonate as sodium peroxide?

It is easy to find home chemistry experiments for sodium peroxide but not so much sodium percarbonate. Industrially sodium percarbonate is used a sodium peroxide source- it is close enough to used as ...
1
vote
0answers
73 views

How do I get calcium citrate to precipitate in experiment on extraction of citric acid from juice?

I was planning to extract citric acid from mango juice by first using Aspergillus niger fungus by fermentation to convert the mango juice to citric acid, then extracting by first adding sodium ...
-1
votes
1answer
96 views

Heating NaOH solutions

I am trying to determine the best heat at which to use an NaOH solution to clean a textile fiber. This is being done, carefully, in Asian villages. The raw material is ribbons of bark peeled from a ...
2
votes
1answer
92 views

Looking for a compound that when mixed with sugar will burn when a drop of water is added

Years ago, I watched a Johnny Carson episode where a guest on the show mixed a compound with ordinary table sugar and added a drop of water and the mixture burst into flames. I went and bought the ...
2
votes
0answers
63 views

What is an effective preservative for guar gum slime?

I am attempting to find an effective preservative for guar gum slime. I am using typical recipes: A borax solution of 4%, a guar gum solution of 5% using distilled water, and a mix ratio of 20:1 (guar ...
1
vote
0answers
57 views

How to melt and roll silver chloride into sheets

I want to make silver chloride cathodes for a magnesium salt water battery. Are there any tips on how to proceed? I hope to melt the silver chloride in a covered ceramic crucible in an electric ...
1
vote
1answer
48 views

How to evolve hydrogen from aluminum when the household drain cleaner is safe to use on aluminum?

I live in Japan. I would like to evolve hydrogen to demonstrate to my son buoyant balloons (we have helium aerosol cans here which barely fill one balloon). There are drain cleaners here with low ...
1
vote
3answers
155 views

Safe chemical reactions to start a campfire [closed]

I'm looking for a way to start a small fire electronically with widely available chemicals. It would be great if they are safe to use with metals (not necessarily). But the biggest requirement is that ...
2
votes
0answers
47 views

Is there a known value for the molar extinction (absorption) coefficient for amylose and amylopectin iodine complexes?

I am doing a colorimetry experiment with starch, and have a theoretical model based on Beer's law. To solve it, I need a known value for the molar extinction coefficients of amylose and amylopectin ...
1
vote
1answer
57 views

Should I be worried about the waste from "sugar rockets" and other potassium nitrate fireworks?

"Sugar rockets" or sparklers made of metal fillings, potassium nitrate and some carbon compound are easily made, and there is a lot of tutorials and videos on the internet suggesting them as ...
1
vote
0answers
64 views

Chemically producing sodium metal from magnesium

Anyone with experience making sodium metal ($\ce{Na}$) with the following process? Reactants: $\pu{14 g}$ magnesium powder, $\pu{20 g}$ sodium hydroxide; Catalysts: $1$ to $\pu{2 g}$ menthol crystals; ...
1
vote
0answers
50 views

Can I use silica gel to perform column chromatography at home?

While this question has been asked and answered, it may indicate that a column chromatography qualitatively is possible. At home, is it possible after collecting silica gels from small bags of them ...
0
votes
1answer
45 views

Making carbon powder using fireplace and weak acid

I am doing a little home experiment trying to make as pure carbon powder as I can. I plan to then used it to eat up oxygen from a container where I want to try to melt aluminum. My process was ...
0
votes
0answers
123 views

Could you use All-Purpose Flour as a model rocket fuel?

I'm building a model rocket, and I'm trying to find a good fuel. I've done a lot of research and I know about r-candy and the aluminum-ammonium fuel, but I was wondering, before I made any of these, ...
2
votes
1answer
248 views

Can you make R-Candy without heating the propellant mix?

I'm wondering if there's any way you can make "Rocket Candy" (or R-candy) fuel without cooking it. I'm building a model rocket that I'm hoping will get about 3 km on my first build (It's not ...
1
vote
1answer
79 views

Why does Cody use Litharge? [closed]

In many of the precious metal refining videos Cody (Cody's Lab) takes the sample with the precious metal and puts Litharge into it. After heating it in the furnace, while pouring it out the molten ...
2
votes
0answers
93 views

Hydrogen peroxide and potassium iodide reactions

What is the explanation for the two possible reactions of $\ce{H2O2}$ with $\ce{KI}$ in acid media (iodide-catalyzed decomposition of hydrogen peroxide or iodide oxidation by hydrogen peroxide) and ...
2
votes
0answers
27 views

Ethanol and water resistant adhesives

I need an adhesive that can bind to ABS plastic but is highly resistant to ethanol, isopropanol, and water. It's for use in an environment where it will spend a significant amount of time soaking in &...
0
votes
1answer
63 views

Catalyst and Inhibitors home experiments

My teacher assigned me a science experience involving catalysts and inhibitors at home. I think I understand the principle of it, but I fail to find possible experiments that I can do at home with a ...
0
votes
0answers
33 views

Titanium Dioxide and plastic

How would you recommend attaching a film of anatase to a flat polycarbonate surface without compromising its photocatalytic characteristics? The self cleaning paints that I have seen are generally ...
0
votes
0answers
53 views

How to measure purity of nitrogen gas in a "homemade" way?

Is there any indicator or a way of measuring purity of nitrogen? The lab-way of doing things is out of my reach and I was thinking about a DIY way. I want to decrease oxidising atmosphere in a ...
0
votes
0answers
64 views

Purpose of water bath- rate of formation of precipitate in haloalkane hydrolysis

In a high school experiment for observing the rate of formation of precipitate with Silver Nitrate in the hydrolysis reaction of different haloalkanes (Chloroalkane, Bromoalkane, Iodoalkane), a water ...
-1
votes
2answers
155 views

Electrolysis of copper chloride in solution of Vinegar + H2O2 + NaCl after copper etching

I did copper etching (to make a PCB) using a solution of vinegar + H202 + NaCl and now I need to dispose the solution. There is no waste collection for this kind of stuff where I live, so after some ...
0
votes
1answer
89 views

Phosphoric acid spill cleanup

While working with some rust converter (MSDS, ~20% phosphoric acid by weight), a sequence of events that would make Rube Goldberg proud led to me spilling about 500mL of it all over the place. Yes I ...
12
votes
2answers
1k views

Cleaning with vinegar and sodium bicarbonate

Mixing sodium bicarbonate with vinegar (and sometimes adding dishwasher detergent) is quite a common tip on the internet. But I have never understood the reason. I saw there was a question about using ...
-1
votes
2answers
1k views

Is there a safe way to neutralize bleach at home [closed]

I don't want to simply replace one hazardous chemical with another. The bleach is stubbornly clinging to my shower walls and I feel its effects every time I take a shower. Ascorbic acid seems like the ...
1
vote
1answer
82 views

Is this calculation of the amount of required hydrogen gas correct?

I was a bit hesitant to post this question for it may appear like a "homework help" type of question. But upon rethinking it felt like a genuine question. I was studying stoichiometry with ...
-1
votes
1answer
55 views

Use an Ozone generator to get rid of fungus in the flat? [closed]

I was told that I can use an Ozone generator to get rid of fungus (resulting from not enough fresh air I suppose). But I didn't find any reputable source for that claim. Would it work, Chemists of ...
0
votes
0answers
22 views

Isolating additives in alcohol products

Given an alcohol-water solution (Liquor products) that may have additives and/or may have been aged in wood, I'd like to boil off the alcohol and the water to leave behind the various additives in a ...
0
votes
0answers
40 views

Obtaining potassium silicate from sodium silicate

Is it possible to obtain Potassium silicate ($\ce{K2SiO3}$) from Sodium silicate ($\ce{Na2SiO3}$) without using expensive lab equipment such as furnaces etc.? For example, Calcium silicate may be ...
1
vote
0answers
58 views

Chemistry and Plants [closed]

We're going to conduct a study to make corn husk fiber into a paper. Soda Ash is always used to extract the fibers from the husks, First question is there any chemical we can use aside from soda ash ...
3
votes
1answer
125 views

Removing Iron Oxide from a Floppy Disk?

Don't ask me why, but I did an experiment where I tried to remove the magnetic iron oxide layer from a floppy disk by soaking it in HCl for a week. I put pieces of floppy disk in 0 - 1 M HCl, then ...
1
vote
1answer
79 views

Will these K-alum crystals combine into a "cohesive/well-glued" mass?

The attempt to make a single solid mass of K-alum, using over 125 grams of McCormick K-alum powder, has resulted, in less than 2 hours, in: So besides the growth around the loop of the seed "...

1
2 3 4 5
12