If you use acid on stainless steel, you will promote corrosion. Suface deffects such as scratches will accelerate this.
that really depends on the grade of steel and the acid and temperature.
some acids don’t react with steel
some steels just passivite
some acids and steels will not react unless under high temps.
there are a lot of steels out there
7 Likes
People here mainly use 304 or 316 (cheap Chinese product of good quality).
Also, most of the acids reffered to here (HCl, H2SO4, H3PO4…) can interact with steel, starting at concentration as low as 3% at room temperature. It gets worst if you increase the temperature… unless people isomerize with weak acid atnear room temp and for a short amount of time, using a perfectly clean stainless steel reactor with pristine surfaces (no sctratches). It sound a bit elusive. 
But if using something out of acids and chloride salts, perhaps…
Acid can be good for cleaning steel, rapidly removing surfaces oxides (out of the protecting magnetite layer), but if used quickly and further well washed out from the cleaned surface.
2 Likes
I have several steel reactors (small)
Lining them with chemical and heat resistant epoxy has saved a lot of $$ and works well
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You do that with epoxy or silicone ? What temperature can you reach ?
There are indeed polymers and paints that protect from corrosion.
I never used such so far, as I could always switch to the convenient material between glass, teflon, various plastic etc… coating steal would be very interesting for corrosion.
1 Like
Heat resistant epoxy 400C
Pour in and roll reactor around 11 min
Drain excessive epoxy and kleen treads
Leave to cure acccourding to epoxy prescribed by manufacturer
Only solvent epoxy is a no go is acetone and dcm
22 Likes
Rouge how are you such a mcgyver legend bro
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teflon liners
but I have had seen steel HCl gas sets.
the steel gets a gray look to it as it pasivates but then it as not normal steel
Alloy selection for service in chlorine, hydrogen chloride and hydrochloric acid
Carbon steel behaves in dry hydrogen chloride (HCl) in a manner similar to that in dry Cl2. It is usable up to about 250 °C (480 °F) above which another alloy, such as Alloy 200 is usually specified.
Alloy selection for Cl2 and HCl.pdf (2.5 MB)
as we can see from this paper with carbon steel its not affected until we introduce water into the
system that there is a problem.
when ever I have seen people work with amalgums at scale they use this stuff and sinter the
edges together with a hot roller
other than that rouge has the idea of using epoxy the only thing to think about is some organic
solvents may react with it.
1 Like
That makes sense. If I’m in a ss reactor I could use an inline mol sieve to dry the tincture, correct? Inject from ss keg under inert atmosphere
This is quite a high tech trick here. 
There is a lot of research on the various way to protect steel in corrosive conditions, but most usually focuse on small coupons and idealized situation, not really in actually conditions of use with all the steps. You are doing such research.
Is it OK with hydrocarbons such as heptane/hexane?
Does it has also some non-stick behaviour? How do you clean?
It sounds convenient and efficient as you describe it.
The ideal material would be a bi-layer material, with an indicator within the underlying layer. It would reversibly change color at place where the first surface is damaged and needs to be fixed.
2 Likes
RoguelabRegular
| Chemical Product | Epoxy Resistance to Chemical Product |
|---|---|
| Acetic Acid (20%) | Excellent |
| Acetone | Not Recommended |
| Acetylene | Excellent |
| Alcohol - Ethyl | Excellent (temperature < 120oF, 50oC) |
| Alcohol - Isopropyl | Excellent |
| Alcohol - Methyl | Good (temperature < 72oF, 22oC) |
| Aluminum Chloride | Excellent (temperature < 72oF, 22oC) |
| Aluminum Fluoride | Good (temperature < 72oF, 22oC) |
| Aluminum Hydroxide | Good (temperature < 72oF, 22oC) |
| Aluminum Sulfate | Excellent (temperature < 72oF, 22oC) |
| Amines | Excellent (temperature < 72oF, 22oC) |
| Ammonia - Liquid | Excellent (temperature < 72oF, 22oC) |
| Ammonia 10% | Excellent (temperature < 72oF, 22oC) |
| Ammonium Carbonate | Excellent (temperature < 72oF, 22oC) |
| Ammonium Chloride | Excellent (temperature < 72oF, 22oC) |
| Ammonium Hydroxide | Excellent (temperature < 72oF, 22oC) |
| Ammonium Nitrate | Excellent (temperature < 72oF, 22oC) |
| Ammonium Phosphate | Excellent (temperature < 72oF, 22oC) |
| Ammonium Sulfate | Excellent (temperature < 72oF, 22oC) |
| Amyl acetate | Excellent (temperature < 72oF, 22oC) |
| Aniline | Fair (temperature < 72oF, 22oC) |
| Barium Carbonate | Excellent (temperature < 72oF, 22oC) |
| Barium Chloride | Excellent (temperature < 72oF, 22oC) |
| Barium Hydroxide | Excellent (temperature < 72oF, 22oC) |
| Barium Sulfate | Fair (temperature < 72oF, 22oC) |
| Barium Sulfide | Good (temperature < 72oF, 22oC) |
| Beer | Excellent (temperature < 72oF, 22oC) |
| Benzol | Excellent (temperature < 72oF, 22oC) |
| Borax | Excellent (temperature < 72oF, 22oC) |
| Boric acid | Excellent (temperature < 72oF, 22oC) |
| Bromine | Not Recommended |
| Butadiene gas | Excellent (temperature < 72oF, 22oC) |
| Butane gas | Excellent (temperature < 72oF, 22oC) |
| Butyl acetate | Good (temperature < 72oF, 22oC) |
| Butaric Acid | Fair (temperature < 72oF, 22oC) |
| Calcium Bisulfite | Excellent (temperature < 72oF, 22oC) |
| Calcium Carbonate | Excellent (temperature < 72oF, 22oC) |
| Calcium Chloride | Excellent (temperature < 72oF, 22oC) |
| Calcium Hydroxide | Excellent (temperature < 72oF, 22oC) |
| Calcium Hypochlorite | Excellent (temperature < 72oF, 22oC) |
| Calcium Sulfate | Excellent (temperature < 72oF, 22oC) |
| Carbon dioxide gas | Excellent (temperature < 72oF, 22oC) |
| Carbon Tetrachloride | Excellent (temperature < 72oF, 22oC) |
| Carbonic Acid | Good (temperature < 72oF, 22oC) |
| Citric Acid | Excellent (temperature < 72oF, 22oC) |
| Copper Chloride | Excellent |
| Copper Nitrate | Excellent (temperature < 72oF, 22oC) |
| Dichloroethane | Good (temperature < 120oF, 50oC) |
| Diesel Fuel | Excellent (temperature < 72oF, 22oC) |
| Ethyl acetate | Fair (temperature < 72oF, 22oC) |
| Ethyl chloride | Excellent (temperature < 72oF, 22oC) |
| Ethylene glycol | Fair (temperature < 72oF, 22oC) |
| Fatty Acids | Excellent (temperature < 72oF, 22oC) |
| Ferric Chloride | Excellent (temperature < 72oF, 22oC) |
| Ferric Sulfate | Excellent (temperature < 72oF, 22oC) |
| Ferrous Chloride | Excellent (temperature < 72oF, 22oC) |
| Ferrous Sulfate | Excellent (temperature < 72oF, 22oC) |
| Fluorine gas | Note Recommended |
| Fluosilicic acid | Fair |
| Formaldehyde, 40% | Excellent (temperature < 72oF, 22oC) |
| Formic Acid | Fair (temperature < 72oF, 22oC) |
| R-12 dichlorodifluoromethane | Excellent |
| Gasoline | Excellent |
| Glucose | Good |
| Glycerine | Excellent |
| Heptane | Excellent |
| Hexane | Good |
| Hydraulic Fluid | Excellent |
| Hydrobromic Acid, 100% | Not Recommended |
| Hydrochloric acid, 20% | Good (temperature < 72oF, 22oC) |
| Hydrocyanic Acid | Excellent |
| Hydrofluoric Acid, 75% | Good (temperature < 72oF, 22oC) |
| Hydrogen Peroxide, 10% | Fair (temperature < 72oF, 22oC) |
| Hydrogen Sulfide | Excellent |
| Jet Fuel | Excellent |
| Kerosene | Excellent |
| Lactic Acid | Good (temperature < 72oF, 22oC) |
| Lead acetate | Excellent |
| Magnesium Carbonate | Excellent |
| Magnesium Chloride | Excellent |
| Magnesium Hydroxide | Excellent |
| Magnesium Nitrate | Excellent |
| Magnesium Sulfate | Excellent |
| Maleic Acid | Excellent |
| Mercury | Excellent |
| Methyl Ethyl Ketone | Fair (temperature < 72oF, 22oC) |
| Naphtha | Excellent |
| Naphthalene | Excellent |
| Nickel Chloride | Excellent |
| Nickel Sulfate | Excellent |
| Nitric Acid | Not Recommended |
| Oil - Castor | Excellent |
| Oleic acid | Excellent |
| Oxalic Acid | Excellent |
| Phenol | Good |
| Phosphoric Acid | Good |
| Picric Acid | Excellent |
| Potassium Bicarbonate | Excellent |
| Potassium Bromide | Excellent |
| Potassium Carbonate | Excellent |
| Potassium Chloride | Excellent |
| Potassium Dichromate | Fair |
| Potassium Hydroxide | Excellent |
| Potassium Nitrate | Excellent |
| Potassium Sulfate | Excellent |
| Propane, liquid | Excellent |
| Silver Nitrate | Excellent |
| Soaps | Excellent |
| Sodium Acetate | Excellent |
| Sodium Bicarbonate | Excellent |
| Sodium Bisulfate | Excellent |
| Sodium Carbonate | Fair (temperature < 72oF, 22oC) |
| Sodium Chlorate | Excellent |
| Sodium Chloride | Excellent |
| Sodium Cyanide | Excellent |
| Sodium Fluoride | Excellent |
| Sodium Hydroxide, 50% | Good (temperature < 120oF, 50oC) |
| Sodium Hypochlorite, 100% | Not Recommended |
| Sodium Nitrate | Excellent |
| Sodium Silicate | Excellent |
| Sodium Sulfate | Excellent |
| Sodium Sulfite | Excellent |
| Sodium Thiosulfate | Excellent |
| Stannic Chloride | Excellent |
| Stearic Acid | Good |
| Sulfuric Acid, 75-100% | Fair (temperature < 72oF, 22oC) |
| Sulfur Dioxide | Excellent (temperature < 72oF, 22oC) |
| Tannic Acid | Excellent |
| Tartaric Acid | Excellent |
| Toluene | Good (temperature < 72oF, 22oC) |
| Turpentine | Good |
| Urine | Excellent |
| Vinegar | Excellent |
| Water - Distilled | Excellent |
| Water - Fresh | Excellent |
| Water - Sea, Salt | Excellent |
| Xylene | Excellent |
| Zinc Chloride | Excellent |
3
10 Likes
Copy that. Spectacular idea!
1 Like
He is not hitting higher numbers either don’t worry
Tell you what I will give you the sop and 8 weeks time to do it right
You will get my direct phone and mail
And video conferencing time needed
Once you have the numbers I claim
You will in return make a donation of 10 K to a charity of future4200 members choice
As proof I will give the sop s for free to 3 other members with the same service to make sure your not cheating
Cbd>D9 minimum of 85% all cannabinoids visible after conversion food grade reagents
Cbd> D8 95%+
And maybe those that have already received these sop from me for free or trade can chime in to back up my claims including @treuscience the same day this happened for free
Balls to the wall😉
37 Likes
there are so many epoxies.
and so many amine cats to go with it.
it looks like you have found a very good one my friend.
very good advice to suggest people use this.
2 Likes
I’ll vouch for any claims @Roguelab makes and can show COA’s for verification of anything as well.
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Running it now (ran one he had from a few months ago as well) and I can say with confidence, @Roguelab isn’t bullshitting.
The man not only spoon fed me the WHOLE PROCESS, but helped me chew it up and digest it. He makes his SOPs safe, scalable, and easy enough that there is no guess work, even for a Non-organic chemist.
I’ll go to bat for him ANYTIME!
19 Likes
Id be willing to give it a shot! I got all the toys one could ever dream of!
2 Likes
I’m interested. I’ve spent 6 months working on our D9 conversion and can’t get pass 73%.
Thanks,
Jack
2 Likes