Best choice for catching dish

[Ayham Hafez]

I read many threads talking about catching dish, I think the best choice is to use pyroceram dishes like corningware, but unfortunately its not available in my country.

I tried pyrex before but its cracked, the available options I have now is to go with one of the followings:

Titanium cookware (as called in cook shops)
Tefal cookware
Or granite cookware


I have the option of stoneware but I read that it will crack if temperature more than 220 c or if it used without water.

Which one is the best and will not react with acids like AR?

 

[4metals]

Another option that is popular is using a rubberized heat band. These bands wrap around the outside of glass and plastic containers to provide moderate heat for a reaction. Then the catch pail can be a plastic catch all. Plastic cement mixing trays are popular here in the USA.

I have posted this image as an example before but here is a rubberized heat band being used on a stainless steel pot to digest silver. These bands are also made for plastic pails.

This setup did not use a catch basin but he trusted the stainless steel to not break apart.

 

[Ayham Hafez]

Another option that is popular is using a rubberized heat band. These bands wrap around the outside of glass and plastic containers to provide moderate heat for a reaction. Then the catch pail can be a plastic catch all. Plastic cement mixing trays are popular here in the USA.

I have posted this image as an example before but here is a rubberized heat band being used on a stainless steel pot to digest silver. These bands are also made for plastic pails.
View attachment 64888
This setup did not use a catch basin but he trusted the stainless steel to not break apart.

You always surprise me, really impressive, I will try to find the rubberized heat band, also I'm looking to know if tefal, titanium or granite cookwares react with acids or not

 

[4metals]

Titanium holds up well to aqua regia, the failure points are always the welds from my experience but that is on Turkish made welded pots.

 

[Ayham Hafez]

Titanium holds up well to aqua regia, the failure points are always the welds from my experience but that is on Turkish made welded pots.

So titanium cookware is really made from titanium or at least plated with titanium.

 

[adam mizer]

"Pyrex" is the official, trademarked brand name of the popular cookware brand1. When the "P" is capitalized and the rest is lowercase, it is simply a proper noun for the company1.
If the logo is in upper case lettering, PYREX, it's most likely made of borosilicate, and thus safer.
The lowercase lettering is most likely made of soda-lime glass, so take extra care after any high-heat cooking2.

 

[4metals]

My experience is with pots about 5 gallon in size fabricated from titanium sheets so it was titanium fabricated into pots. These were used for the actual reactions not as catch pots.

I do not believe titanium can be electroplated. Mind you I have been out of the electroplating industry for more years than our average member has been alive, but back in the day it could not be electroplated. You could electroplate titanium as the base substrate metal but not plate any other metal with titanium.

 

[4metals]

I found these photos of vessels made in Turkey out of titanium.

 

[Ayham Hafez]

I found these photos of vessels made in Turkey out of titanium. View attachment 64889

Do you think the welding here is also titanium?

 

[4metals]

Do you think the welding here is also titanium?

The welds were definitely titanium but for whatever reason they were the first point of failure. But they did not fail quickly and some have yet to fail years on.

 

[Yggdrasil]

The welds were definitely titanium but for whatever reason they were the first point of failure. But they did not fail quickly and some have yet to fail years on.

Titanium is a funny material in many ways, it will happily alloy with practically anything.
Even when machining it may alloy up (Just by friction heat) with the cutting tool whether it is Carbide or high speed steel.

But most alloys are not durable.
Welding Titanium with Aluminum or Stainless Steel is no problem during the welding.
But the moment it cools it becomes like glass and cracks up.

It is also very sensitive to Oxygen during the welding, forming a yellow powdery coating which needs to be removed completely.

So my guess is that, it is workmanship during the welding or maybe the weld procedures themselves that are less than stellar.

 

[Ayham Hafez]

Titanium is a funny material in many ways, it will happily alloy with practically anything.
Even when machining it may alloy up (Just by friction heat) with the cutting tool whether it is Carbide or high speed steel.

But most alloys are not durable.
Welding Titanium with Aluminum or Stainless Steel is no problem during the welding.
But the moment it cools it becomes like glass and cracks up.

It is also very sensitive to Oxygen during the welding, forming a yellow powdery coating which needs to be removed completely.

So my guess is that, it is workmanship during the welding or maybe the weld procedures themselves that are less than stellar.

Do you think its better to use Tefal or granite cookwares as a catching dish rather than titanium?

 

[Yggdrasil]

Do you think its better to use Tefal or granite cookwares as a catching dish rather than titanium?

I really don't know anything about Granite dishes.
Tefal is a brand of glass dishes I think.
Titanium might not hold too good against HCl and Sulfuric.

 

[CrystAG]

Not all titanium alloys are cut from the same cloth and I am still looking to find reference to a suitable grade.
The details below are an ad lib from a copyrighted book recently gone back into print and it regards corrosion studies on Ti and how it holds up to Nitric. Sadly the book does not detail the grade of Ti used:

"..On December 29th, 1953 a technician at Edwards AFB was examining a set of titanium samples immersed in nitric acid, when, absolutely without warning, one or more of them detonated..."

The passage goes onto say that the cause was identified some months later:

"J.B Rittenhouse and his associates tracked the facts down, and by 1956 they were fairly clear. Initial intergranular corrosion produced a fine black powder of (mainly) metallic titanium. And this, when wet with nitric, was a sensitive as nitroglycerine or mercury fulminate. The driving reaction, of course, was the formation of TiO2. Not all Ti alloys behaved this way, but enough did to keep the metal in the doghouse for some years..."