Search results for query: hood

...still need to wear eye protection and nitrile gloves. Let me tell you from experience lol Do not do refining in your garage without a fume hood , I say lol however it's not really funny or safe. All of your tools and anything metal will be completely rusted. Even more important is that...

Respirators lasts only a short time and do not remove the most dangerous gases so they give a false sense of security.

There is no such thing as too much HCl. The only thing that leads to diluting the solution and increasing the cost. Refining chemistry wise it is not that important. Too much Nitric and SMB on the other hand…

...overnight, or a few days to complete like cementing PGM'S with a stirring hotplate with a air bubbler or anything that can not fit in your fume hood. Mostly for when I have 6 or 7 different refining projects going at the same time. What I'm really needing is a bigger fume hood and that's...

When cupelling with lead are there any indications that the sample is contaminated with Cadmium? While cupelling with a torch (exhaust hood and respirator) a dark red liquid appeared on the lead bead. Since the melting point of CdO is about 950C, which coincides with cupelling temperature...

That depends on what material the hood is made from. PVC is welded Fiberglass uses fiberglass resin Plywood uses a good epoxy sealer and silicone. I wonder how flex seal would hold up to the acid fumes. https://flexsealproducts.com Any members have first hand experience with flex seal?

...to do with the Spaniards and father Sarah. Father Sarah was first a geologist before he ever became a priest. And the pope appointed him Saint Hood! The only way I see that happening is if he was responsible for putting a whole lot of cash in the Pope's pocket. And the only place he could...

I’m researching to build a good strong fume hood with a good scrubber that I can recycle some nitric acid fume. I don’t want to clear out the whole garage. Most of my tools and stuff are in plastic totes and I have a couple of metal cabinets. That’s my plan. No car in garage only a couple of...

If you are working in a hood no problem, if outdoors it should be OK with a slight breeze. Keep your face away and do like Bill Clinton, don't inhale!

...I was really meticulously clean and careful, but clearly some oxidizer got in there. I did have a small bottle of nitric in the fume hood, would vapors possibly contaminate? In the end it's ok, Ionly lost maybe .001 gms of gold, but I'm just curious for the purpose of learning what I could...

Ive not got the experience some of these people do but I have some fresh failures still close to my heart. I wish someone would have impressed upon me to know my fitering system inside and out and have that well practiced. Dont assume that's the easy part and you will cross that bridge when you...

Welcome to us. Since you are going to refine I'll give you some useful links. Safety and waste treatment are considered a must read. We ask our new members to do 3 things. 1. Read C.M. Hokes book on refining jewelers scrap, it gives an easy introduction to the most important chemistry...

...solution, and as you indicated, virtually nothing came out. Maybe in the 10s to 100s of milligrams. In the stockpot it goes. I am working in my garage unfortunately, but I did build a decent fume hood that moves a lot of air. I took the beakers out just for photos. Thanks again for your help

I was more refering to if the hood could go "BOOM". If Nitro and sulfur the celloluse can go towards celloluse powder. Even if not going "BOOM" it might risk to burn very aggressivly if a gasburner flipps over and the flame touches the wall. How risky? I do not know but the risk is there.

...and can create potential dangerous situation....ask me how I know this. Fortunately I never keck clip my thermometer adapter so the pressure just shot the adapter out. I think someone else here on the forum had the same experience with the Grahm condenser. How's the fume hood holding up?

The old Dish Washers are PERFECT for an inside fume hood. If you search appliances stores and or repair companies they are very cheap, especially if they don't work you can pick them up for nothing. Inside is designed to catch and retain fluid. Once the metal and door comes off they are...

If I connect a pipe to the hood and lead the gas into water, is the solution to the problem of not getting outside?

The pallet tote idea is nice if you have room and need a bigger hood. Here in AZ most of those l've seen have a 46"x48" base and up to 48" tall. Typically they cost $100+ That's why I mentioned using an old dishwasher. They also can be made into a sandblasting cabinet. They're cheap (I got a...

I hope your doing this in a fume hood or outside up wind of it. Hard to say, but maybe there's some sort of anti-caking agent in your SMB.

...make your routine silver cleanups simple and you have the scrubbing capacity to add some scrubbed drops to handle any noxious fumes. Without a hood you will be forced, as you were when you converted the silver chlorides, to work in the open shop or use the tumbler for lots too small to handle...

The thing that one really has to consider on hoods is the cost of the makeup air. Might not seem like much, but when your winter is sub freezing, you also need to heat that air. My average monthly gas/electric bill for the house is $500. Without the fume hood running it's closer to $250...

OK, nobody laugh at mine....This was my first fume hood in the building stage, and I used it for several years. :)

They can tweak this design to pull a near-perfect vacuum (deafeningly loud!) or move high volumes of liquids with a small pump... ((Apologies I can't attribute the source of this image, kinda stolen off the NET a long time ago as a cheat sheet for my fume hood)

...a big last minute push. Emergencies = a lot of money being thrown out for the inconvenience of a fast job. Don't know if there is someone in the hood who can do this locally. Not a huge deal once set up. I could easily do it in a day. Hopefully you will find someone in time. I would not let...

The book is Hokes book in the links you got. The cementing is all in the cement thread you also got the link for. And as you so direly have learned, always use a catch pan/vessel. Pyrocerams are the gold standard here, but it is not always easy to find. Edit to add: Pyrite need to be roasted to...

Just wanted share my new DIY fume cabinet. Cost a little over $100 total. About half of that was on the range hood I bought from a resale store. Brand new in the box Broan with 3 speed exhaust fan maxing out at 300cfm and dual led lights with 2 brightness settings for $50 and actually there was...

The problem would be acid contacting any metal. You could isolate the motor and bearings with silicone and gain some time. Meanwhile keep your eyes open for roadside specials!

I wouldn’t do it inside, or even near anything metal of value. A fume hood would be good, even a basic hood to keep fumes away from you is better than none at all. If no hood, work outside where the average breeze will blow from one side to another. You don’t want to do it from front to back or...

https://goldrefiningforum.com/threads/building-a-chemical-fume-hood-with-a-plain-steel-blower.23107/

We do not follow her advice regarding safety