What is a platinum crucible?
6 min read
Asked by: Brandon Martin
These crucibles offer high temperature strength and high melting point. Platinum offers oxidation resistance in air and oxygen; and corrosion resistance in acids and melted salts. Protect your investment with platinum tongs that reduce possible damage and scratches to platinum crucible when hot.
What is a platinum crucible used for?
Platinum crucible is one of the most useful tools of the analytical chemist. They are most often used in XRF sample preparation, ash testing, wet chemistry, and Loss on Ignition (LOI) applications. Platinum crucibles are created with enough strength necessary for use in a chemical laboratory.
Why is platinum crucible used for ROI?
Crucibles made from 100 percent platinum have excellent resistance to chemical deterioration. Platinum crucibles with 5 percent gold have melting points ranging from 1670 to 1750 degrees Celsius, which in practice can be used in applications up to 1200 degrees Celsius.
How much is platinum crucible?
DELHI SCIENTIFIC Silver Platinum Crucible Manufacturer, Max Temperature: 1500-2000 degree Celsius, 2900 Per Gram, Rs 3500/gram | ID: 7497879873.
What does a crucible do?
Used from ancient times as a container for melting or testing metals, crucibles were probably so named from the Latin word crux, “cross” or “trial.” Modern crucibles may be small laboratory utensils for conducting high-temperature chemical reactions and analyses or large industrial vessels for melting and calcining …
What is the best material for a crucible?
Alumina (Al2O3) Crucibles
It is the most commonly used crucible for lab research use. The material has a high melting point is and relatively chemically inert.
What type of crucible is used for steel?
Porcelain, PTFE, Stainless Steel, Nickel, Carbon Steel, Zirconium and Vitreous Carbon
| Porcelain Crucibles | Platinum Crucibles | PTFE Crucibles |
|---|---|---|
| Stainless Steel Crucibles | Nickel Crucibles | Carbon Steel Crucibles |
| Zirconium Crucibles | Vitreous Carbon Crucibles | Crucible Tongs |
Why is it called a crucible?
The events that took place during the time the play was written were very similar to the Salem witch hunts. This is why Miller named the book “The Crucible” after the Salem Witch Trials.
What temperature can a crucible withstand?
Temperature Limit
| Crucible | Maximum Temperature Limit |
|---|---|
| (G) Graphite Carbon | 3000°C or 5432°F |
Why does a crucible need to be heated?
Heating it on its side is preferred because the overall strain on the ceramic material at the high temperatures used is somewhat less. When transferring a crucible to the dessicator tongs must be used.
How do I clean my platinum crucible?
One way of cleaning platinum crucibles is by soaking them in diluted hydrofluoric acid for at least 24 hours, then boiling for three hours. Once the platinum crucible is cool, it should be rinsed carefully with water and then if necessary it should be cleaned mechanically in an ultrasonic bath.
How expensive is a crucible?
Budget Graphite Crucibles
| Item Name- | Model | Price |
|---|---|---|
| #1 Clay Graphite Crucible | Item: 17353 | $9.99 |
| #1.5 Clay Graphite Crucible | Item: 182871 | $12.18 |
| #2 Budget Graphite Crucible | Item: 17362 | $15.23 |
| #4 Budget Graphite Crucible | Item: 17936 | $20.81 |
Can a crucible melt steel?
Thus they can be used to melt cast iron, limited number of times. I would not recommend these crucibles for melting steel. A good choice would be zirconia crucible, both from the point of view of temperature rating and minimal contamination of steel.
Can cast iron be used as a crucible?
What it looks like. And give you a quick look inside it and this crucible has 25 melts in it with cast iron.
Is Crucible Steel Strong?
One of the most perplexing things about the Ulfberhts is the strength of the metal from which they were made. The material, known as “crucible steel”, is so strong and pure that it seems inconceivable that any blacksmith of that time could have handled it.
How good is crucible steel?
Crucible steel is always high carbon if not ultra-high carbon steel (UHCS). This is generally not so good. However, mixtures that would, for example, have produced 0.8 % carbon steel, a steel optimal for many applications, would not melt at the temperatures available. Crucible steel thus is a compromise.
Who invented crucible steel?
Benjamin Huntsman
Benjamin Huntsman, (born June 4, 1704, Lincolnshire, Eng. —died June 20, 1776, Attercliffe, Yorkshire), Englishman who invented crucible, or cast, steel, which was more uniform in composition and freer from impurities than any steel previously produced.
What is the crucible process?
The crucible steel process involves the smelting of stock such as wrought iron, cast iron, and blister steel in small, foundry crucibles for carburizing or decarburizing. During these processes, carbon is either diffused into or removed from the stock to produce optimal metallurgical qualities in the finished product.
What is crucible furnace?
A crucible furnace is one of the oldest types of melting ovens there is. It is a container that can be made from any material that has the ability to withstand very high melting temperatures. These ovens are categorized by how the molten metal is removed from the crucible: •
What is difference between crucible and furnace?
Crucible melting and cupola operation are two types of furnaces that can be used to melt solid substances. The key difference between crucible melting and cupola operation is that crucible melting requires a furnace made of ceramic whereas cupola operation uses steel for the preparation of the furnace.
What are the different types of crucible furnace?
The following three types of crucible furnaces commonly used in industry: 1. Pit Type (Stationary) Furnace.
Tilting Type Furnace.
- Pit Type (Stationary) Furnace: …
- Bale-Out Type (Stationary) Furnace: …
- Tilting Type Furnace:
What is an example of a crucible?
The definition of a crucible is a vessel or container made of materials that resist great heat. An example of a crucible is a container made of graphite or porcelain that melts only at very high temperatures.
What does crucible mean literally?
What does crucible mean? A crucible is a severe test or trial or an extremely challenging experience. This figurative sense of crucible is based on the literal meaning of the word: a heat-resistant container used to melt metals.
How is crucible steel made?
Crucible steel is steel made by melting pig iron (cast iron), iron, and sometimes steel, often along with sand, glass, ashes, and other fluxes, in a crucible. In ancient times steel and iron were impossible to melt using charcoal or coal fires, which could not produce temperatures high enough.
What is another word for crucible?
In this page you can discover 18 synonyms, antonyms, idiomatic expressions, and related words for crucible, like: trial, cauldron, tribulation, melting-pot, test, furnace, ordeal, vessel, Wyndham’s, affliction and playhouse.
How do you use crucible?
You open them up and you put them around. You can pick off lids. So if you're concerned that there's something on the bottom of this lid you can sort of twist it around put it like.
Whats the opposite of crucible?
Opposite of a very unpleasant and prolonged experience. delight. happiness. joy.
