Search results for query: hood

Be aware PGM salts are highly toxic so if you intend to pursue this have a hood with extraction and proper safety gear to do so.

Hopefully anyone who has experience with Venturi fume hoods can help me out here I’m wondering if I would get away with shortening the air input tube from 1m to a couple hundred mm without a negative effect. My thinking is that it would decrease drag and improve the blower force closer to the...

To be clear, I had not been refining in the house but rather outside. Still not as safe as having a fume hood, but better at least. I stored the metal from my only attempt at PGM refining in the house though, and I obviously stored it very improperly. I did this several months ago and have no...

and by metal ions in solution should not be rolled rubbed licked or splashed in the eyes , yes i learned this years ago. fortunately my lab has a nice fume hood to do all the unrecognized procedures in. I get it. I confused your love for a more condescending note. Im sorry

...nasty when SMB reacts with acids i got a lung full of it and was coughing for weeks. Even with a gas mask on. I recommend setting up a fume hood environment or a gas mask with fans and venting the toxic gases. This implies NO2 gas, SO2 gas, and HCl fumes. Your health is more important than...

...SO2 can cause your body to build up a tolerance to its odor. This is not a good tolerance. You can potentially be exposed to higher levels of SO2 gas while your nose is telling you it's "not so bad". Please use proper PPE and/or a fume hood. Your health is far more valuable than any precious...

Every time I see your picture of the plastic barrel and funnel fume hood it reminds of that AP system. I always wanted to try and see if would work the same way, I just don’t get enough escrap anymore to try it.

Rednight has not been here since 2016 so he might not read it. Nice method though.

You need a blower for this hood. The opening is about 2’ x 2’ so a 400cfm blower is the minimal exhaust to clear the fumes effectively. Small jewelers buy wet location exhaust fans which will work, until they don’t. Corrosion from the fumes is your enemy. If you have fume scrubbing the fan will...

...cups overflowing and without problems with too much nitric acid haha.. ;). I've gotten everything I've read you need, even built a good fume hood. But I've only managed to refine with results from plated scrap once.. No matter how I go about it now it just ends up with either a dark green...

Can you show a link for this? I've never seen 1/2" pvc that cheap. I'm in the process of designing and building a hood out of pvc sheet and the cheapest I've seen for 1/2" 4 x 8 is well over $500.

...experiments everywhere. I sealed the leftovers up and put them aside to build my shed into a lab. Started with my work space and home made fume hood. It's a 55 gallon barrel. Bent plexi to have some doors. for fume extraction I put a 4 inch pipe in the top and around a 6" blower. Thinking 400...

You must be tired from driving too much, If Talking about what not to do gets you angry then there are bigger issues. So please do not do that again. I will add that this was 23g of palladium disolved in AR and PD seperated from its fractions. so how you came up with this being Everyday...

...there is an accident. As you have learned the hard way, masks are not perfect. They have a limited capacity, regardless of the type. Once they've filtered to their maximum capacity, the fumes will get by. A fume hood is needed for this type of work. I hope you recover from this exposure...

In these threads about building your own scrubber/ fume hood there is schematics for a setup that uses an e-ductor vacuum system and just glass bottles that draw the gases through. In this setup one can use as many or few bottles one want and also have different solution in the bottles...

...some chips into a magic potion and then melting down a gold button 3 minutes later) and just mixing up a bunch of chemicals underneath the range hood on his stove for "adequate" ventilation and he simply just hasnt had the time to come back and answer the questoins asked of him or that he is...

...spending a lot of effort and reagents for a small amount of gold, the danger of platinosis, the risk of spills and contamination when under the hood makes me leary of doing that if I don't have to. I'm not intimidated by it, just seeing if there is a way to lessen it. I know there is no...

It can be used if its done outside. If you do not have AP already, find some green corroded Copper and add into the HCl. An aquarium air pump is more versatile than using Peroxide over time. For this test though, it might be ok with just Peroxide. Be aware: The HCl vapours will destroy any...

...just want to know where to get it when im ready. I still have to read the above book and the other 2 items on the list. And then build a Fume Hood...which oddly enough i have an exhaust tube that hook's up to a fan and would exhaust it into the backyard of my property. I live alone so...

...to power it. The top photo is the filter trolley and the bottom photo is a 72 liter flask in the tipper with the condenser mounted in a hood. Since the heat mantles have 2 heat zones, you can buy the 72 liter and process smaller lots by only using the bottom heat zone. I have never...

First and foremost because it do not like obstacles and any scrubbing action will be an obstacle ;)

...away in the process. That is why colder parts of the furnance in proximity of molten stuff will turn yellow. We used to have scrubber for pyro-hood mounted, and once during the melting of mixed alloy of base and precious metals containing lead (around 15-20% Pb, mass around 1kg, induction...

First get your Chemicals and refining out of your house NOW. These are toxic and corrosive substances that will seep through everything and every where in its vicinity. The nails will start rusting in the walls and so. Find yourself a place outside to do it. You have started out a bit on the...

...Yes, that is a good idea. Absolutely avoid H2SO4 whenever I can. Seems that no matter the extremes of caution, and doing everything in the hood, I damage my work area. Besides acetate salt electrolytes, do you have any other electrolyte suggestions for me to explore? I like fireworks, just...

I disagree a bit here. Best to go with Cupric Chloride leach. But if you go the HCl - Nitric route you need to roast the material in between the acids. No washing will be able to remove the acids. And regarding the dissolving the best is to use either Bleach Peroxide or pool Chlorine with the...

...process in a way that you don´t need it. It is very wasteful in terms of used energy, very messy and quite bad for the life expectancy of fumehood and hood fan (condensation and wet acidic fumes). Nitric acid/nitrates aren´t only oxidizer available, and also you do not need to add excess to...

Vapours can do that, but it takes time. HCl can dissolve minute amounts of Gold if the Gold is fine enough, it just takes a bit of Oxygen in the Acid. But it is nothing to be bothered about, put it in the stock pot and reclaim it there later.

If you use a fan to push the gases through a column with spray jets and balls/fillers it should be good,maybe.. Correct me if I'm wrong guys.

Then I'd expect that you will need to run a full scrubber column of kinds. There are many here with this kind of insights. Did you read the fume hood/scrubber threads?