/sci/ - Science & Math

So there's definitely something here. It's been sitting in an ice bath for just over an hour and you can see a bunch of particles suspended in it. Will filter and lay it out for drying tonight. The fluid has kept it's thick bleachy properties however this doesn't appear to be a problem except filtering is slow.

I'll be going shopping tomorrow at the electronics store to pick up a bunch of crocodile clips at the very least. My knowledge of electronics is poor, can anyone think of stuff that will be useful that I should pick up while I'm there?

At this rate I hope to be testing a 1kg motor next week!

>there is no spoon

Is there any problem with connecting multiple power supplies to the one bath?

>>4173761
Yes yes the source is in the video says gouging rods but I don't want to go to my welding supplier just for these. I'll be paying him a visit soon anyway but in the mean time do you know off-hand are there other suitable materials?

I'm not asking to be spoon fed, it's just in the interest of saving time. If there was a particularly helpful tutorial you followed it would be kind of you to share.

I can no longer directly buy the chlorates I want and for the supply required I have yet to determine whether the boiling or electrolytic method will scale easier and more efficiently.

>>4173742

I don't have any graphite for the anodes or a prepared power supply. Does it have to be graphite? I have some tungstens, bits of stainless steel and regular steel, 2mm aluminium rods and copper wires.

Info on preparing a power supply and the solution you used are much appreciated

I'm confident I've boned myself royally with the KCl/NaCl crap. Though I'm sure with some extra steps for refinement it can be taken out.

I DID try to find some zero sodium salt but no luck so far. I went to a "health store" to ask them if they had some and while I was waiting to be served I got to experience my first real life encounter with homeopathists.
They (shopkeep/customer) were blabbing on about something but key points in their conversation included how homeopathy is a placebo and you have to think positive for it to work or it won't. Kids don't understand what a placebo is so it doesn't matter if they believe in the medicine so long as they believe in the parent. The "medicine" will take about 4 weeks to work and she should come back after that time to discuss it again.

I quietly facepalmed while browsing their overpriced garlic pills.

Top from left to right
What filtered out from the warm mix
What was left in bowl after filtering. Excess KCl/NaCl is there in a puddle + bits of other unknowns

Bottom from left to right
First crap that was filtered and left in the original bowl. Suspected NaCl with maybe some NaOCl
Remainder of filtered warm liquid. KClO3 should appear in this!

A small stir and more heat you can see it reacting in quite nicely.

Added the KCl (51%) / NaCl (48%) this morning.

Brought it to the boil and then let it sit to cool down. Foolishly I added a little more salt while it was cooling which I'm almost sure didn't react at all.

Filtered it while it was still warm to try and catch what little bits of KClO3 precipitated out first and to leave what saturated NaCl in the bowl. Once it's cooled I will put it in the freezer and see what happens.

Some de-ionised water was added to the mix to thin the mixture a little and to give the NaCl more room to get stuck in.

Video of brewing / salt addition will be up soon.

Pic related. Slightly warmed with first salt added

>>4171069
>Plan B

>>4170693

Sounds like a bro

I think I reduced it too far because it's gloopy as shit without even adding the KCl.

1.4L -> 0.5L

It did burn a little on its own so that's a little promising.

>>4170297
Zero to FFFFFFFFU- in 0.1 seconds

>that's rocketry

Mine shouldn't be as randomly disastrous.

Some of these made my butt clench
http://www.youtube.com/watch?v=13qeX98tAS8

<-- Picture related, he has the right attitude

Two hours... This shit is slow.

Can anyone see any problems with adding a KCl/NaCl combination rather than pure KCl? I'm going to be extracting NaCl then adding it again by the looks of it. Hopefully the saturation won't be too much to overwhelm the KClO3 as it comes out..

My fagtag won't stay on

>>4170179
It might sound look and taste like a good idea but maybe it's not.

FUCKING HOW DO 4CHAN

FUCKING BLEACH

The bleach is on the boil

>>4169722

lol?

>>4169210 I sincerely fear that you will hurt yourself if you screw around with chlorates.

The work I am doing is not "screwing around". There will be a full risk assessment at each stage and precautions will be taken as necessary. If viable, the chlorates will be converted to the more stable form of perchlorates, this does not imply it will treated as if it were safer because it will be just as combustible as before.

Thanks for your concern.

>>4169710
It says the gross weight of the cylinder is 86kg, makes no mention of the weight/mass of the gas.

>>4169421
They're available in size 'W' cylinders. Stats on my Argon bottle says its filled between 215-230 bar at 15ºC, 11m³. I'm not sure what the hydrogen is filled at.

I've no experience with compressing gases or gas pumps. Can a regular air compressor be fitted with a line to supply bottle, purged and manually cranked over to pressurise any gas?

I certainly won't be considering doing this with H2 unless I have an entirely inert room to work in which I won't.

>>4168897 Chlorates are unstable and were the cause of many violent amateur-rocketry accidents back in the 1960s

They're noobs from the 60s that didn't know what they're doing. Keep everything super clean, absolutely no prolonged storage and leave your general dumbfuckedness at the door.

Dangerous chemicals only become dangerous when handled and managed incorrectly.

>>4168980

+ you need to factor in the very large balloon. I'm thinking of the massive balloons required for experiments that were around the 1ton mark in the 1970's. They had problems with the material being cigarette paper thin and prone to badly tearing. I'm not sure how they've progressed in this field but the size of the balloons won't have changed.

I think if I were to be handling that much hydrogen it would be more economical to pump it into a combustion chamber and make a motor with it. Would need to fabricate a special tank to suit a rocket, while possible it's an expensive pain in the neck if you find that it leaks at all.