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Nitric acid from calcium nitrate
[rquote=693489&tid=160365&author=Sir_Gawain]Do a double displacement with sodium carbonate. ...		 10-6-2024 at 07:04
by: Chemgineer
Nitric acid from calcium nitrate
[rquote=693475&tid=160365&author=Rainwater]CaSO4 is a real pain in the !@@ to clean. I exper ...		 9-6-2024 at 05:01
by: Chemgineer
Nitric acid from calcium nitrate
I normally produce nitric acid from magnesium nitrate and sodium bisulfate dry distillation and it w ...		 8-6-2024 at 15:55
by: Chemgineer
Sulphuric acid from nitric acid
Thanks, it seems this breaks down into nitrogen dioxide at 70 deg C which is fine so my sulphuric ac ...		 24-5-2024 at 04:19
by: Chemgineer
Sulphuric acid from nitric acid
I should say, as for the sulphuric acid, I next boil it until it produces an acrid smell and white f ...		 23-5-2024 at 14:22
by: Chemgineer
Sulphuric acid from nitric acid
I normally produce sulphuric acid by bubbling sulphur dioxide through a 50% solution of nitric acid. ...		 23-5-2024 at 14:21
by: Chemgineer
Lactic acid from supermarket supplies?
[rquote=692353&tid=160280&author=EF2000]I guess you'll find that video interesting: [url=htt ...		 15-4-2024 at 07:43
by: Chemgineer
High temperature stir bar.
[rquote=692468&tid=160288&author=Sulaiman]As above but;
I can't imagine what stirrable liqu ...		 15-4-2024 at 04:35
by: Chemgineer
High temperature stir bar.
If you have a hot plate that can reach 500 deg C where is a good place to find a suitable stir bar? 		12-4-2024 at 06:02
by: Chemgineer
Lactic acid from supermarket supplies?
[rquote=692326&tid=160280&author=Hexabromobenzene]Because of the contamination of the spores ...		 8-4-2024 at 14:33
by: Chemgineer
Lactic acid from supermarket supplies?
I am wondering if I can produce lactic acid from rice water and milk via fermentation.

Once the c ...		 8-4-2024 at 13:21
by: Chemgineer
Extracting chromates from stainless steel
[rquote=692024&tid=160242&author=Chemgineer]This looks promising, i'm getting an almost lumi ...		 5-4-2024 at 12:53
by: Chemgineer
Extracting chromates from stainless steel
This looks promising, i'm getting an almost luminance orange colour now. 		28-3-2024 at 09:27
by: Chemgineer
Extracting chromates from stainless steel
[rquote=691938&tid=160242&author=Rainwater][rquote=691910&tid=160242&author=Texium]N ...		 27-3-2024 at 12:19
by: Chemgineer
Extracting chromates from stainless steel
[rquote=691914&tid=160242&author=Admagistr][rquote=691909&tid=160242&author=Rainwate ...		 25-3-2024 at 13:36
by: Chemgineer
Extracting chromates from stainless steel
The remaining undissolved steel I just removed in large pieces. I'm not sure what lowering the ph w ...		 25-3-2024 at 03:27
by: Chemgineer
Extracting chromates from stainless steel
I'm going to have another go starting from chrome powder to simplify things a bit.

The above does ...		 24-3-2024 at 13:29
by: Chemgineer
Extracting chromates from stainless steel
Ok so eventually the yellow solution goes kind of oily looking and then starts to dry, i've stopped ...		 24-3-2024 at 08:20
by: Chemgineer
Extracting chromates from stainless steel
Urgh I think I have a very impure solution. I keep boiling this down and it's yellow but now I keep ...		 24-3-2024 at 07:48
by: Chemgineer
Extracting chromates from stainless steel
[rquote=691874&tid=160242&author=Sulaiman]Chromium octahydrate, dehydrated to green hexahydr ...		 24-3-2024 at 06:20
by: Chemgineer
Extracting chromates from stainless steel
So i've been following the process in this Extractions and Ire video https://www.youtube.com/watch?v ...		 24-3-2024 at 05:01
by: Chemgineer
Alternative piston shapes in engines?
Keep it round and just increase the stroke length...or turbo charge it. 		28-2-2024 at 11:51
by: Chemgineer
Petroleum fractions
So i've been distilling some non-polar solvents (~pentane & ~hexane?) from petrol, what i'm not ...		 26-2-2024 at 14:54
by: Chemgineer
Clean burnt/melted plastic off concrete.
The real issue here is the danger of getting married! 		22-2-2024 at 05:11
by: Chemgineer
Clean burnt/melted plastic off concrete.
So i've had some success, every now and again I have a suck back incident with my nitric acid and I ...		 20-2-2024 at 13:07
by: Chemgineer
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