Platinum vs Palladium

I've been thinking/dreaming about the QdI a lot recently... and so I have been thinking about palladium, and how it differs from Platinum. I know both metals are from the same family, but that platinum is more expensive than palladium. 
Is one "whiter" or more brilliant than the other? 
In terms of hardness, are they comparable? And is palladium as dense as PT?

Cheers, 

Francois
Re: Platinum vs Palladium
03/25/2009 - 20:43
Hi Francois, Wikipedia has a reasonably good section on the metal. Here are a couple of excerpts to address your question: Joseph Palladium, along with platinum, rhodium, ruthenium, iridium and osmium form a group of elements referred to as the platinum group metals (PGMs). Platinum group metals share similar chemical properties, but palladium has the lowest melting point and is the least dense of these precious metals. Palladium is a soft silver-white metal that resembles platinum. It is the least dense and has the lowest melting point of the platinum group metals. It is soft and ductile when annealed and greatly increases its strength and hardness when it is cold-worked. Palladium dissolves slowly in sulfuric, nitric, and hydrochloric acid.[5] This metal also does not react with oxygen at normal temperatures (and thus does not tarnish in air). Palladium heated to 800°C will produce a layer of palladium(II) oxide (PdO). It lightly tarnishes in moist atmosphere containing sulfur.

Palladium itself has been used as a precious metal in jewelry since 1939, as an alternative to platinum or white gold. This is due to its naturally white properties, giving it no need for rhodium plating. It is slightly whiter, much lighter and about 12% harder than platinum. Similar to gold, palladium can be beaten into a thin leaf form as thin as 100 nm (1/250,000 in).[5] Like platinum, it will develop a hazy patina over time. Unlike platinum, however, palladium may discolor at high soldering temperatures, become brittle with repeated heating and cooling, and react with strong acids.[citation needed]

Palladium is one of the three most popular metals used to make white gold alloys.[16] (Nickel and silver can also be used.) Palladium-gold is a more expensive alloy than nickel-gold, but it's naturally hypoallergenic and holds its white color better.

When platinum was declared a strategic government resource during World War II, many jewelry bands were made out of palladium.[22] As recently as September 2001,[23] palladium was more expensive than platinum and rarely used in jewelry also due to the technical obstacle of casting. However the casting problem has been resolved, and its use in jewelry has increased because of a large spike in the price of platinum and a drop in the price of palladium.[24]

Prior to 2004, the principal use of palladium in jewelry was as an alloy in the manufacture of white gold jewelry, but, beginning early in 2004 when gold and platinum prices began to rise steeply, Chinese jewelers began fabricating significant volumes of palladium jewelry. Johnson Matthey estimated that in 2004, with the introduction of palladium jewelry in China, demand for palladium for jewelry fabrication was 920,000 ounces, or approximately 14% of the total palladium demand for 2004 - an increase of almost 700,000 ounces from the previous year. This growth continued during 2005, with estimated worldwide jewelry demand for palladium of about 1.4 million ounces, or almost 21% of net palladium supply, again with most of the demand centered in China. The popularity of Palladium jewelry is expected to grow in 2008 as the world's biggest producers embark on a joint marketing effort to promote Palladium jewelry worldwide
Re: Platinum vs Palladium
03/25/2009 - 20:49
Just one additional note. I do have a Palladium watch, not VC, but a Chopard tourbillon. I like it quite a lot, heavy like PT. Most WG watches are plated, usually with ruthenium because WG itself has a rather dull grey appearance (un peu moche). Joseph
Thank you very much for the info JB
03/25/2009 - 21:01
Although I am ashamed that I didn't check on wiki first (I did search the web, but for some reason wiki didn't come up and I didn't think of it...) If it is whiter and more resistant than PT, than if ever I get my dream custom VC made, it might in palladium... Cheers,  Francois
my Quai de l'Ile is in palladium. I can't really see a difference in
03/25/2009 - 22:19
color with platinum but it is lighter.
that is one magnificent QdI, Alex ;-) (nt)
03/25/2009 - 22:52
Unless this new killer watch of yours is absolutely stunning
03/25/2009 - 23:46
or VC releases an even nicer QdI than this one next year, this will be my next watch
Re: Platinum vs Palladium
03/26/2009 - 17:07
Good morning Francois. I had the opportunity recently to try on a Palladium watch. I found it to wear as heavy as Platinum and certainly will hold up to your activities. It did perhaps appear shinier to me. Clearly the watch posted by Alex is the way to go. Best of luck!!! Regards, Matt