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Chemistry / Alumina/silica/boron oxide eutectic point

« on: 03/05/2022 03:20:44 »

Hi people. Does anybody know the eutectic point of the aluminum oxide silica boron oxide eutectic point system? I have serched online without find any info

Thanks

2

General Science / Double hairdryer charcoal foundry

« on: 30/04/2022 15:03:25 »

Hi. Hope you guys are ok. I need an assistance to anybody who has done this. If I make a charcoal foundry and put two hairdryers one on each side to blow air do you think the temperature of the heat the furnace produces reach at least 1700 C?

Thanks

3

General Science / How to reduce cast iron melting point

« on: 21/04/2022 08:53:34 »

Hi Hope everybodh has a good day. I have a furnace that runs up to 1000 C I would like to melt cast iron but its melting point is higher than that. Does anybody knows what chemical element I can add to the cast iron in the crucible that can help to reduce the melting point of iron to under 1000 C? I will appreciate an answer.

Thanks

4

Chemistry / How to make pottasium permanganate crystals from solution

« on: 21/06/2021 13:39:37 »

Hi

I have a solution of pottasium permanganate which is pink in color. How can I make crystals out of that solution

Gracias

5

Chemistry / Where can I find magnesium metal scrap at home?

« on: 10/06/2021 16:53:42 »

Hi. Does anybody know in what kind of household items I could find things made or contain magnesium metal. I need a small amount of magnesium metal in any form coz in the area  where I am there is nowhere they sell it. ....

Gracias

6

Geology, Palaeontology & Archaeology / How to extrct zinc from brass

« on: 19/05/2021 15:09:53 »

Hi does anyone know how can I extract  zinc metal from brass with acids and some salts at home? When I searched through youtube I found people dissolving brass in nitric acid. How and is it possible to add some metal salt to precipitate zinc?

Gracias

7

Chemistry / How to reduce aluminum melting point?

« on: 04/08/2020 10:31:34 »

Hi

I want to try melting aluminum metal in a charcoal foundry without using an air blower. What chemicals can I use as flux to reduce aluminum metal melting point so I can melt it with a bot lower temprrature?

Gracias

8

Geology, Palaeontology & Archaeology / What homemade release agent prevent POP casting to stick into concrete mold

« on: 10/03/2020 20:45:44 »

Hi

What homemade release agent prevent POP casting to stick into concrete mold? What household chemicals can do this task? pop is plaster of paris

9

Chemistry / How to make Limestone powder Caco3 dry in a instant?

« on: 26/02/2020 04:05:35 »

Hi

When I mix limestone with water it take a whole day to dry in the sun. What chemicals or compoinds that I can add in tje mixture so it can make the solution dry in an instant?

Another question which is similar. When gypsum poeder mixed with water, what accelerator can I add so the mixture can dry in minutes?

My goal is to make sidewalk chalk but I don't have access of Plaster of Paris in my area

I will aporeciate the help

10

Chemistry / What chemicals can lower the melting point of aluminum oxide?

« on: 24/01/2020 08:52:40 »

Hi

What chemicals can lower aluminum oxide melting point?

I know mokybdenum oxide can but where I am is not avsilable.

I want to lower the temperature from 2200 C to at least 800 C

11

Chemistry / Can these mixtures ignite thermite!

« on: 10/01/2020 22:13:30 »

Hi

We kmow that people have used a mixture of potassium permanganate + glycerin to ignite thermite. Does these other mixtures also can ignite thermite?

Ammonium nitrate + zinc and drops of hydrochloric acid

Sodium chloride + sugar and drops of sulfuric acid

Ammonium nitrate + sodium chloride + zinc powder and drops of water

12

Chemistry / How to separate Aluminum from Aluminum chloride solution

« on: 03/12/2019 14:38:11 »

Hi

I have a solutuon of I think it is Aluminum Chloride because I dissolved aluminum foil into hydrochloric acid. How can I separate aluminum from the solution so I can get back thr aluminum in any form?

The aim of asking this question is to get aluminum powder without grinding aluminum foil. I thought if I can dissolve aluminum foil into hcl maybe there is a way to get it back as a powder

Help me guys wih this

13

Chemistry / Can sodium nitrate ignite thermite?

« on: 27/11/2019 06:04:14 »

Hi there

If I want to prepsre Iron oxide/aluminum foil thermite is it possible to ignite it with sodium nitrate?


I dont have sparklers or magnesium ribon I only have siduum nitrate

14

Chemistry / How can I extract the potassium from fertiliser?

« on: 24/11/2019 17:52:48 »

Hi

I have a fertiliser bag with the following composition: Total Nitrogen 13℅, Phosphorus(P2O5) 0℅ and Pottasium (K2O) So.how can I extract that potassium? What methods can I use

I want that pottasium so I can use it to make potasium nitrate

15

Chemistry / Help on how to prolong lava stage of thermite

« on: 15/11/2019 17:49:06 »

Hi

I have a question regarding Iron oxide/aluminum thermite. After I ignite the thermite reaction and after a minute when molten lava is remained in the flower pot, how can I retain that yellow lava state for a long time say ciuple days without cooling at all?. Like putting something on a thermos and it can stay hot for a long time

What material can I use to conduct this experiment which can insulate and keep it hot for a long tume? Any ideas are welcomed

16

General Science / Can 2 or 3 mapp gas produre 2000+ C

« on: 15/01/2017 11:47:51 »

Hi[/size]If I take 2 or 3 mapp gas torches and lighr them and between them i put a crucible, will the inside the crucible temperature br motr than 2000 C ?[/color]

17

General Science / Can two gas torches heat a crucible to over 2000 degree Centigrade?

« on: 01/03/2016 11:44:08 »

Hello

If I take two small mapp gas torches and start them up, and put a crucible between them, by the combine power will they produce at least 2100 C? If I put something with a melting point of 2000 inside the crucible will it melt?

18

Chemistry / How to make Tetraethylorthosilicate?

« on: 13/11/2015 01:33:53 »

Hello

How can I make one of these at home? tetraethylorthosilicate (TEOS), tetramethylorthosilicate (TMOS), tetramethoxysilanc (TMS), or tetraethoxysilane (TES).

19

Chemistry / Can corundum be made with thermite?

« on: 03/11/2015 00:13:18 »

Hello

I know that  make sillicon metal from thermite reaction but is it possible to make corundum crystalsor diamonds with thermite? And what mixtures to use?

20

Chemistry / Can I melt aluminium oxide with a blow-torch?

« on: 09/10/2015 15:14:16 »

Hello.

If I take an oxyacetylene torch which can reach temperature up to 3200 C and point underneath a ceramic crucible filled with aluminum oxide which melts at 2100 C will the torch be able to melt the powder?