Search results for query: hood

Hello again yall. So I have a good one for you this morning. I'll get right into it: I'm going to start building a fume hood today, and I'm what you would call an extremely avid DIY-er as well as a excellent "sourc-er", for lack of a better term. In other words, I can build marvelous machines...

Here in the US you can apply for and be granted a “de minimus” status which usually means you use less than 10 pounds of Nitric acid a day. The catch is if anyone complains about the smell, even if your usage is under the limit, you still need to scrub it. Maybe the 20’ above ground level works...

Thank you Michael . Just read the refining book before you mix any thing .mixing acids to desolve metal very dengerous if you don't have fume hood .and glass .gloves .mask .away from your kitchen .home . kids .wife .neighbors. pets . Label every thing . And don't never mix any thing without...

Welcome to us, neighbor. Stop watching Youtube it will just get you or someone close injured or worse. And stop using Urea, sprinkle it over your plants instead. Here we advocate the use of Sulfamic acid, it converts the Nitric and NOx to Sulfuric acid. Here are some tasks and study material...

...a time, watch it for a few minutes and repeat until the gold has gone into solution. This is a very simple process to use but you need a fume hood or to be outside with the wind blowing the fumes away from you, do not breathe the chlorine and acid fumes, you should not be able to smell it...

...it to recycle my homemade nitric, but the former angry red fumes were also made completely invisible. (Of course, this still needs a good fume hood, NOx is a silent killer.) This was well below a liter, scaled up to bucket size the weight of the marbles would start to become an issue, and...

That's where the real butter comes from percentage wise. I have clients whom i charge 5-7% and then i have clients who i charge 20% for the same materials. Volume gets the discount, but i can make the same profit spread on smaller lots with less chemicals, processing, and time. I can make a...

...you may ask why would we discourage this on GRF? The experienced members know how involved it gets. Proper lab wear, including vessels, lab, hoods, electrowinning equipment (if used), furnaces and associated hardware, chemicals, haz mat disposal, security ( small children will eventually get...

Very cool, thank you for responding. I’m new to the hobby, only been casually at it for a few years. I’ve just been going about it learning what I can and learning hands on as I go. I’m glad to be on this site. Is there a thread here to post pictures of rocks? I literally have what seems to be...

Ductless fume hoods have no place in the reactions side of refining. There are certain gases that filters will never clean. As others have stated you will need to retrofit your hood to use a scrubbing system. Ideally you'll also want a hood that contains no metallic components. Either that or be...

...affect the gold & stainless together (such as a risk of bonding more iron to the gold or the other way around) I have fans and gas masks, my hood is too big (a 6 foot kewaunee supreme) so I took it apart...I don't really know what to do with it tbh. I bought one of those fume care fingerprint...

On that scale, it might be worth looking into a hydrocarbon recovery pyrolysis system (the metal doesn’t care) maybe with a steam generator for heat recapture, and converting your fume hood to a couple of dedicated scrubbers (see library)

Just a quick note to say that you should have a hood and scrubber/condenser on your furnace. Doing this outdoors only contaminates the neighborhood and gives mining a huge black eye. Mercury in background levels is present to some degree, in all ores.

...And when I'm ready I'm going to do my first pgms rehearsal 😉😁🤩 Yes I have read that pgms salts are very complex indeed. And the need to have a hood for toxic gases, gloves, a respirator mask because of pgm salts and toxic gases, to do it as safely as possible. Teacher There are some...

Step one: get a fume hood - no way to safely do these reactions without one. I didnt have one when I first got started. A whiff of nitrogen dioxide here, a breath of chlorine gas there, SO2 fumes are the worst - for me. I didn't think it was that bad. My legs would suddenly develope cramps so...

...any overflow in stead of pouring over your lab floor and reacting with whatever may be laying around. A good airflow and circutaion in the fumehood should keep the fumes away from you. I tested mine with smoking incense sticks to see the flow good enough. Prevention is key here. Keep...

Excellent suggestion Goldman. Here on the forum there are threads on building your own hoods, building your own scrubber, building your own melt furnace, and the list goes on. We have also developed threads on how to refine many different scrap types and also threads on strategies to get...

...soda bottle top and a long-handle screwdriver with a sharp tip. Problem with the tiny ships is that cracking them apart to get them loose sends fragments flying most of the time, which means gold is being lost. If I can cover the chip with a little plastic 'hood', that should catch the pieces.

...fumes and the forth bottle is trap for the vacuum pump and I have doubt if vacuum pump is needed or not. and at the end the tube returns to the hood for ventilation If there is remaining gas. this is picture of my designing Please help me If my design is correct or not. Best regards...

The fumes coming off PCB boards during Pyrolysis are flammable, during the world war when uel was rationed the gas produced from a gasifier was used to operate bus's, tractors and automobiles. Coal gas Charcoal. The residue ( ASH ) left behind after Pyrolysis is what your after. Here's a...

...I'm running in circles with no real progress made. Safety/health has been a priority for me when doing this experimenting. I've built a fume hood and scrubber in addition to always wearing a respirator, gloves, safety googles and keeping everything clean and organized! I know working with...

...is remaining on the foil at all. Remove foil to dry, and clean the beaker. Fill small beaker with bleach 50ml-100ml place beaker under your fume hood, and turn the fume hood on. Drop the single foil into the bleach. If the foil starts dissolving, and reacting it could be ruthenium. The yellow...

...that NONE of them are absolute sure fire methods Will they de-NOx your AR enough to drop your gold - YES - BUT - there is a possibility/likely hood that you may or not re-dissolve "some" of your gold - especially if you do not filter your drop "right after" the drop but instead let it sit...

...are really part of the necessary overall process. A series of changeable blast gates can switch between ducts to accommodate changes allowing a hood with scrubbed drops. I prefer to set up a facility with scrubbed drops to scrub fumes generated and what is called fugitive emission which is a...

Yup. I will need to be diligent in work with dimethyldisulfide... Traps, waste treatment with hypochlorite, using some electric cheap membrane pump for distillation as it probably stay stinky forever... :D And work up the procedure for myself, as original papers are using high dilutions, which...

Have you had a proper thorough medical check up after your incident? There may be hidden damage to your lungs, so they should be checked thoroughly.

The only thing to use for HCl and Nitric is either proper fumehood or forced air ventilators. No filter will stop the NOx fumes from Nitric/AR.

...on having an upside down pvc funnel just over my reaction vessel which will be a 2000ml beaker with a small hose going out the side of my fume hood leading to three 500ml gas wash bottles packed with marbles and sodium hydroxide solution with an oil free 2.5 cfm vaccum pump at the end, my...

...its pannable, if it has much differancs in the size of the material you may want to classify it down it will make panning more efficient. Some might roast it to red hot (out doors or under a fume hood if possible.) And dump it in to water to fracture the black sand that may be encasing gold.

I would rather than building production-scale equipment, invested time into getting familiar with the recovery process on the material you intend to process. In addition, in bulk quantity, hydrometallurgy become very tedious and overwhelming. Processing boards with acids is generally a very bad...