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Big mistake when collecting Baltic amber
phosphorus???
https://www.latimes.com/local/la-xpm-2012-may-18-la-me-0518-burning-rocks-20120518- ... |
4-12-2023 at 15:19
by: pneumatician |
Are plastics really difficult to recycle ?
I think we already talked about it here...
https://duckduckgo.com/?q=japamese+plastic+recycle+mac ... |
27-11-2023 at 11:28
by: pneumatician |
Video on how to make gold nanoparticles
https://archive.org/search?query=Practical+Colloid+Chemistry
https://elixa.com/colloidal-silver ... |
17-11-2023 at 19:01
by: pneumatician |
Video on how to make gold nanoparticles
Gold colloidal, the spin of the electron particle... does it rotate clockwise or counter clockwise?? ... |
11-11-2023 at 10:22
by: pneumatician |
Disinfection of rainwater
You need to know a lot about rain water. Not all is the same, the season of the year, if the storm h ... |
7-11-2023 at 16:55
by: pneumatician |
Video on how to make gold nanoparticles
[rquote=683672&tid=159407&author=Rainwater]Would those colors keep well in sealed ampoules?[ ... |
7-11-2023 at 15:53
by: pneumatician |
Gold or not Gold, thats the question
put household hcl wait and "fish" the gold leaf :-)
no?
he who is not satisfied is because he ... |
2-5-2023 at 10:04
by: pneumatician |
Essential oil purification
Is the oil rancid?? |
2-5-2023 at 09:50
by: pneumatician |
Separating stuck ground glass joint
The last I read, put pressure with fingers around the joint. The labglass makers are sadistic idiots ... |
2-5-2023 at 09:30
by: pneumatician |
Video on how to make gold nanoparticles
https://www.youtube.com/watch?v=snmIKpjg6Wo&t=39s
https://www.youtube.com/watch?v=m_ScOUNAdlM ... |
2-5-2023 at 05:50
by: pneumatician |
latest glassware purchase
My last toy, a 500 ml custom made big mouth flask 
Oh, now I can remove easily the vegetal matt ... |
20-2-2023 at 11:53
by: pneumatician |
Where to find cheap sodium chlorite in EU
in a shop with items for water purification... check the yellow pages... how many you want?? a tone? ... |
19-12-2022 at 19:57
by: pneumatician |
Mystery Glassware Identification Thread
[rquote=655974&tid=31602&author=unionised]I was surfing eBay and came across this. The descr ... |
19-12-2022 at 19:31
by: pneumatician |
thermometer
I was afraid! I read in some place glass filtrate a lot of infrared, ultraviolet... but the laser re ... |
19-12-2022 at 11:07
by: pneumatician |
thermometer
Hi,
is SAFE the use of a laser/infrarred thermometer in ethanol... at ambient temp or > 40ºC? ... |
18-12-2022 at 11:48
by: pneumatician |
Homemade and Repurposed Lab Gear
Bottle cut: I use for a test tube stand & for dust funnel :-)
Any size, any mouth diameter... ... |
27-11-2022 at 20:41
by: pneumatician |
Everyday Chemistry
[rquote=655457&tid=84298&author=Piroz]I used my furnance to preparation calcium oxide from o ... |
23-11-2022 at 08:40
by: pneumatician |
latest glassware purchase
[rquote=650139&tid=71645&author=HydrogenSulphate]Some GL45 reagent bottles. There are red c ... |
22-11-2022 at 19:01
by: pneumatician |
Distillation of paraffin wax (or its thermal decomposition)
Put a bit in an iron... plate, apply heat under plate and smell it... but what you expected from thi ... |
20-11-2022 at 11:09
by: pneumatician |
Preparation of STABLE colloidal gold
Well, the easy method is to tint some water with from yellow to deep purple and say to anybody: hey ... |
20-11-2022 at 08:41
by: pneumatician |
Preparation of STABLE colloidal gold
maybe a "tincture"/extraction of Gold with ether???
this guy use Rosemary oil = colloidal Au
h ... |
8-11-2022 at 18:06
by: pneumatician |
New study shows red light exposure in mornings could help eyesight.
holy shit! I've a lot of color therapy sunglasses... |
8-11-2022 at 16:26
by: pneumatician |
Using a(n Ag) mirror RBF to carry out reaction with fused alcali
Au gilding of glass.
covert the part with a super-saturated borate de soda and applying Au leaf u ... |
24-10-2022 at 18:55
by: pneumatician |
Using a(n Ag) mirror RBF to carry out reaction with fused alcali
[rquote=677865&tid=159011&author=Twospoons]You should be able to electroplate other metals o ... |
24-10-2022 at 15:51
by: pneumatician |
Using a(n Ag) mirror RBF to carry out reaction with fused alcali
I think is not a question of thickness, ALWAYS the alkali eat something, your tolerance at this "som ... |
24-10-2022 at 09:42
by: pneumatician |
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