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powdered Zn
The ratios of S and Zn can be calculated as Xenoid did in the previous post, BUT, the best thrust ma ... |
6-1-2008 at 12:50
by: Mr. Wizard |
anhydrous liquid ammonia
Don't think farmers are unaware of the potential and possibility of theft of their ammonia. They are ... |
1-1-2008 at 17:58
by: Mr. Wizard |
Accidental Cl2 production - Ruined stainless steel
I think the previous reference to citric acid is from an older method of cleaning copper and brass b ... |
25-12-2007 at 09:01
by: Mr. Wizard |
Accidental Cl2 production - Ruined stainless steel
The Citrus or Orange automotive hand cleaner contains d-limonene or orange oil which is a great so ... |
24-12-2007 at 22:08
by: Mr. Wizard |
Accidental Cl2 production - Ruined stainless steel
Try some 400 or 600 sandpaper grit " wet or dry" and sand in the direction you want the grain to ru ... |
24-12-2007 at 11:48
by: Mr. Wizard |
Electrolysis of NaHCO3 solution with copper electrodes
Could the bicarbonate ion have been reduced at the Cathode to a formate ion? This would give you a ... |
22-12-2007 at 23:43
by: Mr. Wizard |
Darwin's Black Box
AFAIK the Vatican and the Catholic Church has not taken a pro creationism position on evolution. To ... |
17-12-2007 at 09:20
by: Mr. Wizard |
Zinc gluconate->zinc citrate
[quote][i]Originally posted by UnintentionalChaos[/i]
Zinc citrate is insoluble, zinc gluconate is. ... |
12-12-2007 at 09:04
by: Mr. Wizard |
Strangelove
You have to be a certain age or be an old movie fan to know the implications of that word: Dr. Stran ... |
2-12-2007 at 23:41
by: Mr. Wizard |
Sealing wires inside glass
Take into consideration the difference of expansion of the metal and the glass. A large cross sectio ... |
9-11-2007 at 09:54
by: Mr. Wizard |
Need info on KClO4 propellants
The wax used by sculptors is most likely the 'lost wax' used in jewelry and denture making. It is ... |
18-10-2007 at 16:12
by: Mr. Wizard |
Need info on KClO4 propellants
They got their start making Bromine for the anti-typhoid market. They used a brine well to get the r ... |
18-10-2007 at 09:57
by: Mr. Wizard |
Mortar And Pestle Composition
I have a large and small cast iron mortar and pestle; lucky acquisitions from a second hand store. ... |
18-10-2007 at 07:42
by: Mr. Wizard |
Need info on KClO4 propellants
I remember reading about perchlorate and asphalt pitch being used as a solid rocket fuel in the past ... |
17-10-2007 at 16:45
by: Mr. Wizard |
detect the presence of water of crystallization
A quick old fashioned way is to put the material in a dry glass test tube and warm it over a flame. ... |
3-10-2007 at 06:44
by: Mr. Wizard |
MgCO3 from MgSO4 + Na2CO3
The Calcium is there , but I don't know it's exact purpose, possibly to strengthen or preserve the i ... |
28-9-2007 at 11:13
by: Mr. Wizard |
MgCO3 from MgSO4 + Na2CO3
[quote][i]Originally posted by chief[/i]
I have about 20 _old_ car-batteries in the basement: How g ... |
28-9-2007 at 05:32
by: Mr. Wizard |
Glassware in Texas - Register or Not?
So you are planning to do something illegal, you give your location and then ask for help conspiring ... |
17-9-2007 at 10:07
by: Mr. Wizard |
61 year old man's chemicals stolen and destroyed
[quote][i]Originally posted by Sauron[/i]
True Grit:
Pettifogging Lawyer: "Marshal Cogburn, did ... |
15-9-2007 at 22:02
by: Mr. Wizard |
anhydrous ammonia from urea?
You can liquefy ammonia with simple steel and iron fittings. There used to be a lot of links when yo ... |
14-9-2007 at 21:42
by: Mr. Wizard |
Installation of fume hood
I have no idea what prices are for these things are in Europe. I can only guess they cost a LOT more ... |
26-8-2007 at 13:00
by: Mr. Wizard |
Installation of fume hood
If you want a 'rated' (=expensive and recognized safe by the industry) hood you will have to have an ... |
26-8-2007 at 07:27
by: Mr. Wizard |
Free NOVA episode on Percy Julian
Is this interesting to you because of the subject of his research or because he was black? |
24-8-2007 at 15:42
by: Mr. Wizard |
Moulding calcium carbonate
Try using limestone or marble chips (calcium carbonate) mixed with sodium silicate (waterglass). Wh ... |
21-8-2007 at 11:59
by: Mr. Wizard |
What would you do with...?
The reason they are 'sparking' while you are charging them up from your wall transformer is they rep ... |
19-8-2007 at 05:44
by: Mr. Wizard |
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