i love how you just get thrown into the video by him struggling to unpackt what looks to be a stick of butter with one hand.

@CatboyChemicalSociety

2 жыл бұрын

it has to be butter btw and not mineral oil because you cannot remove mineral oil easily by using NaOH whereas that can remove butter or any triglyceride.

@contomo5710

2 жыл бұрын

@@CatboyChemicalSociety yes you mentioned that :P

@bromisovalum8417

3 ай бұрын

@@CatboyChemicalSociety neat trick

Definitely will try it soon.. nice to see you giving more update about the membrane 🙂

Nice work, I'm going to give this a try.

Hey i was thinking coat a copper pipe outside with jb weld and run currant through it. Gas should form on the inner walls and float up. With 1 in pipe it should be enough that the water falls back down and doesnt over flow into the next chamber. Kind of like a pump sucking on a puddle it cant create enough suction to pull it all the way up before it breaks surface tension and allows air in. That way the gas doesnt get mixed back into the water. Kind of like a splash cell instead? Idk.

Nice work. I’m using cement as a binder for nickel zinc battery on my you tube. Getting good results.

@CatboyChemicalSociety

2 жыл бұрын

cement batteries are a thing and I have heard of them before. They are usually zinc or aluminum mixed with cement cast in some areas and the central rebar acts as a cathode so that it inhibits corrosion of the rebar over time. These are one of the many ways rebar corrosion is prevented via electrochemical means. Others include inline Ir-Ru MMO ribbon anodes but that requires active current connection running through it but the cement batteries are an area of research that doesnt require electricity to hookup to it and is meant to be a more passive solution.

Is the ion exchange fast enough for use in shock electrodialysis desalination? Perhaps it could be made thinner?

@CatboyChemicalSociety

Жыл бұрын

Sounds like you need very thin membranes for that

Apply this to a fiberglass substrate with a frame to allow for a thinner membrane.

@CatboyChemicalSociety

7 ай бұрын

Yes but the lazy castability is nice too

Do you think dialysis tubing would make a suitable membrane? It's pretty cheap, and can be had in large quantities / dimensions.

@CatboyChemicalSociety

2 жыл бұрын

these are made of cellulose acetate so it may work but will not handle strong acids.

nyaa slather that butter on the membrane

Could you add the measurements of how much water and each chemical you used?

After months of trying nearly everything (fiberglass composites, perlite and epoxy composites), CaSO4 dawns on me because it's a solid electrolyte of the acid I was making. I cast small 1-2 liter buckets, but I was unaware that CaSO4 had any special ion exchange properties. I was wondering, if I went through the PVA, Citric route with a plaster oxidation bucket, totally laminating it in the PVA, Citric combination, would it work at all and if so, would I exclusively get the anion bin the oxidation bucket? In the video I couldn't tell if you were using ion exchange resin or plaster. If I use store bought resin will it keep the cations and anions in their respective cells? Also my experience with just plain plaster of Paris has been the pH gradient goes in the opposite direction, like the pot becomes acidic, but that's when it really starts working well, where there's virtually no cation presence. What I'd really love to know is why it works, like what do you do to a monomer to create an ionomer, can it be done to epoxies or can a prefabricated piece of PVC tarp be converted to an ion exchange membrane?

@CatboyChemicalSociety

Жыл бұрын

you see my latest video on membranes shows how to make an anion exchange membrane using glutamate hydrochloride salt of glutamic acid and PVA. where the free amine groups act as ion exchange for sulfate ions. but if you want a good anion membrane from easy stuff I do know a polymer that can bind anion resin from commercial water filters. that polymer is Portland cement and you can mix white cement with ground up anion resin instead of plaster to make a good anion exchange membrane that selectively passes sulfate anion through the membrane.

@equalcrimeequaltime

Жыл бұрын

@@CatboyChemicalSociety Awesome! Thank you for the prompt reply and clarity on the subject. So what I'm understanding is that the easy route is, if I replace the plaster with cement and mix ground up water filter anion exchange polymer at a ratio of 3:1, I can just keep making my buckets. I'm going to watch the new video now, because I really want to understand how the ion exchange process works, so that I don't have to run around looking for a recipe for every species I want to filter.

Normal Gypsum can be used? How many times is better than the claypot method? Sorry for Bad English

@CatboyChemicalSociety

6 ай бұрын

Better than claypot due to ion exchange but not as good as real membrane

cool

Which cation exchange membrane should i use for chlor alkali process ? Should i use water softener resin or other ?

@CatboyChemicalSociety

Жыл бұрын

yea that works check make sure its cation exchange.

What are the advantages of this over using your PVA made membrane?

@CatboyChemicalSociety

2 ай бұрын

More robust for harsh conditions but limited use mostly for chloralkali and salt exchange electrolysis.

Ice cold water may help slow the cure process keeping it runny longer.

@CatboyChemicalSociety

2 жыл бұрын

oh yea good tip

Hi, I am very interested in making Daniell Cells that are rechargeable. However, for that, we need a membrane that filters Cu2+ ions and only allow Na+ to pass through. Does this ionomer cement with plaster of paris work? What ions plaster of paris allows the passing of?

@CatboyChemicalSociety

Жыл бұрын

these cation exchange membranes will allow Na ions to travel faster through them than Cu2+. But if you want a membrane that outright blocks Cu2+ then look at my earlier video on making membranes using PVA and citric acid baked in an oven.

@aadhithvarathan5432

Жыл бұрын

@@CatboyChemicalSociety I saw that video as well. Thank you. What about the sodium borate and Fevicol membrane? Will that outright block Cu2+?

@CatboyChemicalSociety

Жыл бұрын

@@aadhithvarathan5432 sodium borate membranes are not stable long term sadly. but they will also block out Cu2+ The one that uses PVA and Citric baked in an oven is the one you want.

@aadhithvarathan5432

Жыл бұрын

Thank you very much

Hi, good job, thanks for video. Possible to use this membrane for separation of hydrogen and oxygen from normal water? What is period of use of these membranes?

@CatboyChemicalSociety

2 жыл бұрын

u can use simple porous fiberglass membranes for that since I assume you plan to build a membrane flow cell. porous fiberglass and baffles are enough for your usage.

@genghizalseitov3807

2 жыл бұрын

@@CatboyChemicalSociety Sir, thanks you for ur answer. What is your suggestion to use proper ingredients to alkaline water?

@CatboyChemicalSociety

2 жыл бұрын

@@genghizalseitov3807 if you are using stainless steel anodes then use NaOH, bicarbonate or KOH for your hydrogen and oxygen seperation cell.

@genghizalseitov3807

2 жыл бұрын

@@CatboyChemicalSociety thank you Sir 😊

really thanks, did you mixed cement with plaster or used pure plaster? and is this membrane for cation exchange or anion exchange?

@CatboyChemicalSociety

10 ай бұрын

Cement and plaster because plaster alone would crumble but overall it's both cation and anion membrane where calcium is what transfers ions and calcium silicate is the backbone while calcium sulfate exchanges by dropping sulfate ions for others. You can substitute plaster with calcium carbonate but oddly enough it works well as a cation exchange membrane because it passes sodium ions through when tested in chloro alkali cell. But works as an anion membrane also when electrolyzing copper in water with HCl on other side. This overall functions as a salt bridge that is castable because the salt is insoluble.

@sinaTonewood

10 ай бұрын

again thanks for your valuable responses, can I ask which membrane is appropriate for each Item of bellow question: I want to electrolysis water in 2 conditions: A. cathode side a strong acid solution(H2SO4 or..) and anode side water so H+ transported from anode to cathode, B. anode side a strong alkaline solution(NaOH solution or...) and cathode side water, so OH- transported from cathode side to here, @@CatboyChemicalSociety

@CatboyChemicalSociety

10 ай бұрын

@@sinaTonewood well if you want to transport both types of ions you can use a bipolar membrane which allows for transfer of both cation and anions through it. Over time though since you polarize the acid side with negative and base side with positive the ions will migrate rapidly to equilibrium and you get salts on both sides and further electrolysis will swap the contents of the chambers wherein acid now exists at the anode side and base at the cathode side.

@sinaTonewood

10 ай бұрын

valuable guidance, but I mean only one type of ion be allowed to transfer in each case, i.e. pure water in cathode and KOH or NaOH solution in anode, so when H2 produced and OH- migrated to anode, I need a material only allow to OH- but durable near such a bases, for the second experiment I use an acid in cathode and pure water in anode, so when O2 produced then H+ migrated from anode to cathode, I hope this method can reduce the over potentials. can you please guide me: WHICH MEMBRANE OR SALT BRIDGE CAN BE APPROPRIATE FOR EACH ITEM? 🙏🙏🙏 @@CatboyChemicalSociety

@CatboyChemicalSociety

10 ай бұрын

@@sinaTonewood you can use 2 different membrane types where you have a cation membrane to block anions and an anion membrane in the other chamber instead of just a bipolar membrane. Just configure them correctly and polarize them correctly

Hi MB, in this video, do you mix cation resin with portland cement?

@CatboyChemicalSociety

2 ай бұрын

No this uses CaSO4 as a castable aalt bridge

@achfaridwadjdi9518

2 ай бұрын

Ah, so it is only mixing of portland cement and plaster right?

@achfaridwadjdi9518

2 ай бұрын

Thank you so much for your very fast response, I always happy watching and following your video

Nice video bro ! Do you mean that ion exchange resin that is sold for water filtering ?

@CatboyChemicalSociety

2 жыл бұрын

Yes! that one but do not use mixed. you have to seperate them and use either cation or anion resin or buy them seperately.

@Telectronics

2 жыл бұрын

Oh good that you mention it ! Thank you that helps !

Would this work in a redox flow battery

@CatboyChemicalSociety

Жыл бұрын

this type of membrane not rly but the baked polymers yes

can you use this on Vanadium Redox Flow? thanks

@CatboyChemicalSociety

Жыл бұрын

Not this one but anion membranes made from glutamate crosslinked PVA.

@Hester741

Жыл бұрын

@@CatboyChemicalSociety ohhh see! many thanks for the information.

why dont you just use terrocotta clay what are the advantages of this method?

@CatboyChemicalSociety

2 ай бұрын

Actual ion exchange groups which terracotta does not have allowing me to run lower volts

@josephdvid6

2 ай бұрын

@@CatboyChemicalSociety does your method have less resistance than a terracotta membrane?

@CatboyChemicalSociety

2 ай бұрын

@@josephdvid6 yes a lot less after polarization this thing can pull 4 amps at 6 volts And the newer one yet to come will be even less resistance reaching 200ma/cm^2 at 5 volts. This is why I like ionomer cement, its castable and convinient and has less resistance than terracotta and is basically the middle man of ceramic membranes vs polymer ion exchange membranes. If you see cranial constructions latest video on sulfuric acid from epsom salts he puts 12V and only gets 0.12 amps which is terrible.

@josephdvid6

2 ай бұрын

@@CatboyChemicalSociety nice I'm using it as a cation exchange membrane for large microbial fuel cells. Hydrogen fuel cells are the ones that use anion exchange membranes.

Hi sir, Can we use this membrane for Nickel-Iron Battery with KOH and LiOH.H2O alkaline solution?

@CatboyChemicalSociety

8 ай бұрын

CaSO4 does act as a solid state electrolyte so maybe but that depends on your experimentation.

@abdiseptiaputra

8 ай бұрын

​@@CatboyChemicalSocietyare there any paper or publication about this cement ionomer membrane that I could read to study this for my experiment, sir?

@abdiseptiaputra

8 ай бұрын

​@@CatboyChemicalSocietyThank you so much for your reply sir

@CatboyChemicalSociety

8 ай бұрын

@@abdiseptiaputra im sure there are papers on using CaSO4 as a solid electrolyte but not of this particular composition and there are also papers on cement batteries.