Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

[Next Page]
Constructing a Hershberg stirrer
23-10-2019 at 12:31
by: bobm4360
Suggested media to clean brass part (water soluble)
Try citric acid soak, 10g/100ml. With one piece, time until it looks good, then rinse with water. Dr ...
22-10-2019 at 20:35
by: bobm4360
Diacetone alcohol synthesis
Slightly different procedure, but much better notes and background:

[url= ...
30-6-2019 at 20:16
by: bobm4360
Measuring the pressure of an explosion
Solid motor and uncooled liquid motor pressures were often measured with strain gauges on the chambe ...
21-9-2018 at 21:41
by: bobm4360
Acetone Self-aldol Diacetone Alcohol
Discussion and references here:
15-8-2018 at 21:09
by: bobm4360
Making Pinchbeck Brass
As to borax, the OTC "20 Mule Team" works fine. It's a good flux for most Cu-based alloys, just ski ...
9-4-2018 at 19:52
by: bobm4360
Making Pinchbeck Brass
Use borax as a flux. It concentrates the oxides into dross floating on the melt, and protects the m ...
9-4-2018 at 12:32
by: bobm4360
Making iron filings in pound + quantites easily w/ no contamination
Go to your local brake shop and ask them if they will clean out their brake lathe for you. Usually ...
6-2-2018 at 08:33
by: bobm4360
Need help with Urea-formaldehyde resins
Furfural-urea resins have been made and used. Google has lots.
8-1-2018 at 20:47
by: bobm4360
Any good (read cheap) sources of Tartaric Acid UK?
Don't know about U.K., but tartaric acid is sold here at brewer's/winemaker's supply houses.
9-12-2017 at 01:32
by: bobm4360
Non-oxidizing or corrosive lubricant for aluminum drilling
"A-9" from an industrial supply works with both Al and Mg, and cleans easily with methyl ethyl keton ...
25-10-2017 at 01:31
by: bobm4360
Best solvent to disolve Beeswax?
Turpentine is a solvent for beeswax, especially when warm. 50/50 beeswax and caranuba wax dissolved ...
3-10-2017 at 19:25
by: bobm4360
Thorium metal in coherent form

Hardened and ground drill blanks aren't expensive, and available from most industrial suppliers. ...
28-7-2017 at 20:16
by: bobm4360
Composition of some tool steels
Most drill bits, even the cheap ones, are made from "high-speed" steel, usually W and Mo are the all ...
28-1-2017 at 22:28
by: bobm4360
Isolate acetylsalicylic acid from an aspirin tablet with isopropanol. Quick, easy, and cheap:cool:
17-1-2017 at 00:35
by: bobm4360
Home Made Analysis gear
Cason's"Laboratory Text in Organic Chemistry", 2nd edition; and Amateur Science column in "Scientifi ...
9-1-2017 at 11:44
by: bobm4360
Niacin from nicotine?
Here's a procedure form OrgSyn...
31-7-2016 at 22:08
by: bobm4360
Molten salt or acid baths for cleaning metals
They will all clean well with an aqueous solution of citric acid. No muss, no fuss, no burns! I've ...
16-4-2016 at 19:52
by: bobm4360
Aromatic nomenclature
He does confuse dynamite(glycerol trinitrate absorbed in a mixture of solids) with TNT:P
25-1-2016 at 22:20
by: bobm4360
Using a small deep fryer as an oil bath
As most fry cookers are regulated for cooking french fries and the like, an appropriately rated Vari ...
11-1-2016 at 22:43
by: bobm4360
Happy Holidays
Merry Christmas all!
24-12-2015 at 22:13
by: bobm4360
Purification of Toluene
An altimeter is just a barometer that reads funny. When you get tower pressure, and set that pressu ...
11-11-2015 at 23:06
by: bobm4360
DIY geiger tube?
John Strong's "Procedures in Experimental Physics" at the Internet Archive has all you need to make ...
4-9-2015 at 22:11
by: bobm4360
synthesising pyrrole

Org Syn isn't the answer to every need, but the pro ...
3-8-2015 at 21:35
by: bobm4360
Preparation of PdCl2 from Pd Metal via Aqua Regia - can anyone give reaction insight
The purpose of the multiple boilings is to eliminate the nitric acid. An excellent reference is "Re ...
28-7-2015 at 21:03
by: bobm4360
[Next Page]

  Go To Top