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NEWS: 3M competition - viruses - COVID-19
Hello,
What do you guys think of this:
https://www.indiawest.com/news/global_indian/texas-indian-a ... |
19-10-2020 at 20:46
by: vmelkon |
Glass cola bottles and metal caps
I suppose it is due to economics. It is cheaper to melt and reshape plastic than steel and glass.
B ... |
23-5-2020 at 17:18
by: vmelkon |
Glass cola bottles and metal caps
Yes, beer bottles have the same steel caps.
PET is cheep and plastics like polyethylene, polypropyl ... |
23-5-2020 at 09:13
by: vmelkon |
Glass cola bottles and metal caps
This is perhaps not a chemistry question. Perhaps it has to do with physics or economics.
Why do ... |
22-5-2020 at 20:44
by: vmelkon |
Is electrolysing brine a viable method of HCL production?
H2SO4 is a common chemical. All cars have it. |
15-9-2019 at 20:17
by: vmelkon |
Reaction between Lime Sulfur and HCL
[rquote=622609&tid=153783&author=teodor][rquote=622604&tid=153783&author=woelen]I us ... |
15-9-2019 at 20:12
by: vmelkon |
hotplate performance
I don't have a hot plate but I use to use a halogen bulb, 300 W, to boil water, in a RBF, 500 mL or ... |
27-8-2019 at 19:01
by: vmelkon |
What caused these salt crystals to appear
A long glass tube in the style of a fractional distillation column with some glass beads should be a ... |
17-8-2019 at 20:10
by: vmelkon |
Producing and handling solid sulphuric acid?
There is this page:
http://www.sulphuric-acid.com/techmanual/Properties/properties_acid_freezingpt. ... |
10-8-2019 at 12:42
by: vmelkon |
Calcium and chromate
Probably not. According to this video, you need a very acidic solution to make trichromate
https:// ... |
3-8-2019 at 18:38
by: vmelkon |
Am241 and beta radiation
Thanks guys. That explains it. |
2-8-2019 at 17:52
by: vmelkon |
Calcium and chromate
[rquote=619495&tid=152728&author=CELamCheng]I put some calcium nitrate into slightly acidifi ... |
2-8-2019 at 12:53
by: vmelkon |
Am241 and beta radiation
It would mean that Np237 turns into Pa233 which beta- decays to U233.
Is my geiger counter really d ... |
2-8-2019 at 12:30
by: vmelkon |
Am241 and beta radiation
I am talking about Am241 from smoke detectors.
I have not opened brand new smoke alarms. I have onl ... |
2-8-2019 at 07:29
by: vmelkon |
Li ion batteries same size but different capacities?
[rquote=619209&tid=152602&author=fusso]I have some LIs from 2 battery packs, they have the s ... |
30-7-2019 at 16:14
by: vmelkon |
Glass tubes
If you want a very hot torch that uses air instead of pure oxygen, there is this.
https://www.homed ... |
23-7-2019 at 19:34
by: vmelkon |
Wet ether
Maybe your diethyl ether was boiling due to the heat of the reaction. |
21-6-2019 at 07:00
by: vmelkon |
Motherboard RAM plastic, IDE plastic, PCI plastic
[rquote=614889&tid=150849&author=Ubya]If you just had a few motherboards it was wiser to rem ... |
10-6-2019 at 18:04
by: vmelkon |
Motherboard RAM plastic, IDE plastic, PCI plastic
Hello, I desoldiered some motherboards.
I placed the RAM plastic (the sockets where you insert your ... |
6-6-2019 at 16:41
by: vmelkon |
H2O2 as O2 source for propane/acetylene torch?
I have used a refrigerator compressor to compress hydrogen into cylinders.
It was this type of cyli ... |
4-6-2019 at 15:06
by: vmelkon |
Eye damage?
[rquote=612536&tid=150085&author=j_sum1]To put it in context, burning magnesium ribbon was o ... |
4-6-2019 at 09:09
by: vmelkon |
Making Aluminum (cuttings) for easier milling of Al powder
[rquote=613139&tid=91119&author=Sulaiman]
Cans aren't pure aluminium, always an aluminium a ... |
4-6-2019 at 08:59
by: vmelkon |
Copper/Lead iodide + HAc = I2?
[rquote=613272&tid=146181&author=Antiswat]yes tin chloride is 84g/100mL at 0*C
ive noticed ... |
30-5-2019 at 08:29
by: vmelkon |
endothermic ammonia formation, liquid ammonia?
Do you want to make liquid ammonia?
I doubt that you would be able to achieve -70*C. It would proba ... |
6-5-2019 at 09:27
by: vmelkon |
Reducing lead oxides with carbon/charcoal
If you want to go from PbO2 to Pb, then just make powdered charcoal. Mix with the PbO2 powder.
Then ... |
3-5-2019 at 11:53
by: vmelkon |
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