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Hotter alternative for Kanthal ?
There is also Molybdenum Disilicide. It can go up to 1800C
https://www.ebay.co.uk/itm/Super-Kan ... |
13-12-2020 at 16:18
by: yobbo II |
Perchlorate cell additives for Pt anode
Some reading for Bromate makers.
http://www.chlorates.exrockets.com/further/bromates.pdf
Y ... |
11-12-2020 at 17:46
by: yobbo II |
Magnifying loop for mounting on glasses or your head
I am trying to acertain what magnification of 'dental loupes' to purchase. I cannot get a pair t ... |
9-12-2020 at 16:40
by: yobbo II |
shock sensitive mixtures of KNO3
I once read in a book by Seymour Leck (if I have the spelin right) that a mixture of finely divide ... |
9-12-2020 at 16:33
by: yobbo II |
Should Knowledge Be Free?
If you really want my answer you going to have to pay>>>>>>>>>>>& ... |
7-12-2020 at 18:17
by: yobbo II |
What is this sludge in my perchlorate cell?
Sorry about that.
A very small amount of some impurityor other in a cell can look like a lot o ... |
7-12-2020 at 18:10
by: yobbo II |
What is this sludge in my perchlorate cell?
You have a chlorate cell not a perchlorate cell.
mmo will not make perk. in any sensible fashion. |
6-12-2020 at 16:28
by: yobbo II |
Crystalloluminescence
Crystalloluminescence
Has anybody noticed this.
I once see it (I presume) when lead nitrate was ... |
4-12-2020 at 18:25
by: yobbo II |
Mystery Glassware Identification Thread
[rquote=625589&tid=31602&author=yobbo II]Hi,
What is this item. It simply looks like a stop ... |
3-12-2020 at 18:00
by: yobbo II |
Balance repair
I see this module on ebay.
https://www.ebay.co.uk/itm/DS1256-24-Bit-8-Channel-ADC-AD-Module-H ... |
2-12-2020 at 11:56
by: yobbo II |
Heating Potassium perchlorate solution
It's just that the pressure was not mentioned in the table or the text around the table.
Here ... |
2-12-2020 at 11:06
by: yobbo II |
Heating Potassium perchlorate solution
Attached is a table from The Perchlorates by Schumacher (book).
It would appear that you can heat s ... |
1-12-2020 at 16:50
by: yobbo II |
Balance repair
The pat. here definately uses current pulses to 'greatly improve'* the balance.
US US3786678 ... |
24-11-2020 at 14:17
by: yobbo II |
Crystallizing out 2 Compounds from Each other - How much Solvent to use?
Look up a graph of mutual solubility of the two compounds and if you obtain one you can study the ... |
22-11-2020 at 11:52
by: yobbo II |
Balance repair
I am beginning to think it is not feasable to build a power supply that will supply a current from ... |
22-11-2020 at 11:45
by: yobbo II |
Balance repair
Thanks for replys.
The 'dual photodiodes' (assuming thats what the sensor at the slit is) is in i ... |
19-11-2020 at 12:34
by: yobbo II |
Homemade Hydrometers
Going around on ebay I see something similar to what I had in mind in the opening post.
https://w ... |
18-11-2020 at 15:37
by: yobbo II |
Balance repair
There are no electrolytic or tantanul caps.
The display board (one of three boards in the sca ... |
18-11-2020 at 15:03
by: yobbo II |
Balance repair
I meant by load cell one with strain gauges.
There is no onboard power supply it is externa ... |
17-11-2020 at 15:31
by: yobbo II |
Balance repair
The display shows garbled stuff. Nothing sensible.
There is no load cell, it is a coil of ... |
16-11-2020 at 16:49
by: yobbo II |
Balance repair
Will try with a tiny mirror to get picture of front.
The scales in question are a p-114 Denver ... |
16-11-2020 at 10:39
by: yobbo II |
Balance repair
Got back to this:
Got back to this as I think I need it for some density measurements. The ol ... |
15-11-2020 at 13:50
by: yobbo II |
Borosilitate glass broke on heating
If you heat and cool down very slowly it may be OK. Assume it will break and take necessary preca ... |
12-11-2020 at 16:50
by: yobbo II |
Homemade Hydrometers
I have a mechanical weighing balance and I will have a go at that.
https://us.ohaus.com/en- ... |
12-11-2020 at 16:43
by: yobbo II |
Homemade Hydrometers
Thanks for replys.
I am trying to measure the density of solutions of salts. If I take a sample ... |
11-11-2020 at 17:19
by: yobbo II |
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