• Quick note - the problem with Youtube videos not embedding on the forum appears to have been fixed, thanks to ZiprHead. If you do still see problems let me know.

Is platinum magnetic?

INRM said:
Well, is it?

-INRM
Click to expand...
My poor google skills tells me no, but yes, because:

Platinum, when found, is fairly impure. It is always associated with small amounts of other elements, such as gold, copper, nickel, and iron, and many times contains the rare heavy metals iridium, osmium, rhodium, and palladium. These impurities can lower its specific gravity to 14, when pure platinum is 21.4. Most platinum specimens contain traces of iron, which may cause it to be slightly attracted to magnetic fields.
Click to expand...
If I read this correctly, platinum is not magnetic if it is pure/purified, although the words 'always associated with small amounts of' makes me wonder ..... :con2:

http://www.minerals.net/mineral/elements/platinum/platinum.htm
 
Re: Re: Re: Is platinum magnetic?

Anders said:
Yeah, Well, kind of a defintion issue...
Click to expand...

In field geology we would not use magnetism as a test for the presence or absence of platinum. Only ferrous materials and cobalt. But then, we're talking a rough and ready science there!
 
It depends on what you mean by "magnetic".

Platinum is paramagnetic with a relative susceptibility around 26E-5.

It's not ferromagnetic or diamagnetic, obviously.

Edited to correct error.
 
Magnetism is fascinating, as is gravitational attraction.

Go google a bit on Kepler and see what you find.
 
I want to understand more how all matters can be magnetic?
 
Well everything is magnetic, it's just a question of how much. Same with gravity ... it always applies.

In terms of magnetism Iron (and cobalt) are just a bit special.
 
Re: Re: Re: Is platinum magnetic?

Okay, let's put it this way.

let's say I was carrying a piece of platinum. And I walked right up to an MRI... would the Platinum piece get sucked right out of my hand and go into the machine, f*cking it up all day?

-INRM
 
Re: Re: Re: Re: Is platinum magnetic?

INRM said:
Okay, let's put it this way.

let's say I was carrying a piece of platinum. And I walked right up to an MRI... would the Platinum piece get sucked right out of my hand and go into the machine, f*cking it up all day?

-INRM
Click to expand...

I don't know how strong the magnetic fields are in or near an MRI but I suspect you would feel a very slight tugging if you got close enough. That's just a guess. Platinum is "slightly" magnetic but I'm also not sure how to qualify that. If I cared, I'd look it up.

www.google.com
 
Re: Re: Re: Re: Re: Is platinum magnetic?

Rob Lister said:
I don't know how strong the magnetic fields are in or near an MRI but I suspect you would feel a very slight tugging if you got close enough. That's just a guess. Platinum is "slightly" magnetic but I'm also not sure how to qualify that. If I cared, I'd look it up.

www.google.com
Click to expand...

I think there'd be an attraction, but not enough to feel.

I also can't be bothered to look it up!
 
Re: Re: Re: Re: Is platinum magnetic?

INRM said:
Okay, let's put it this way.

let's say I was carrying a piece of platinum. And I walked right up to an MRI... would the Platinum piece get sucked right out of my hand and go into the machine, f*cking it up all day?

-INRM
Click to expand...

I feel cheap for having dis'ed you in my initial reply to this question. I'm sure Benguin does as well.

Okay, here’s the deal.

Assuming the MRI is a 1.5 Tesla SIGNA machine (general electric) and assuming a one pound mass of platinum suspended on an eight inch string of number 12 nylon string from the top-front of the diagnostic plenum opening such that the mass hangs within one inch of the oval center, and assuming the machine is operating at maximum penetration, you should notice a slight pendulum-like motion of the mass which will eventually stabilize (I estimate 42.1 minutes) such that it will be 1.236 +/- .003 degrees off-plum in the direction of the plenum.

Yea, I made it up.
 
Why do you ask?

And hey, is wood slightly magnetic too then? What about us humans?

I saw some stupid gold and copper colored "magnetic" bracelets for sale at my local Superstore. I wanted to fling them into the garbage. I was so mad they were sold in the pharmacy dept.!!!!

If magnets had any effect on our body that was in any way noticeable, you would explode in an MRI machine!!
 
Re: Re: Re: Re: Re: Is platinum magnetic?

Rob Lister said:
I feel cheap for having dis'ed you in my initial reply to this question. I'm sure Benguin does as well.

Okay, here’s the deal.

Assuming the MRI is a 1.5 Tesla SIGNA machine (general electric) and assuming a one pound mass of platinum suspended on an eight inch string of number 12 nylon string from the top-front of the diagnostic plenum opening such that the mass hangs within one inch of the oval center, and assuming the machine is operating at maximum penetration, you should notice a slight pendulum-like motion of the mass which will eventually stabilize (I estimate 42.1 minutes) such that it will be 1.236 +/- .003 degrees off-plum in the direction of the plenum.

Yea, I made it up.
Click to expand...

Ahhh, but we need the force value to determine the answer to the question (or my proposition you wouldn't feel the attraction).
 
Re: Re: Re: Re: Is platinum magnetic?

INRM said:
Okay, let's put it this way.

let's say I was carrying a piece of platinum. And I walked right up to an MRI... would the Platinum piece get sucked right out of my hand and go into the machine, f*cking it up all day?

-INRM
Click to expand...

When I had an MRI, they didn't make me take my platinum wedding ring off. Just as well, since at the time it would have been hard to get it over the knuckle (due to being somewhat overweight). I didn't notice any force being applied to the finger.

--Terry
 
Eos of the Eons said:
Why do you ask?

And hey, is wood slightly magnetic too then? What about us humans?
Click to expand...

I'd have to say yes to this. Ever see the 'floating frog' experiment where they suspended a frog in a very large magnetic field? It worked on anything at all.
 
Benguin said:
Well everything is magnetic, it's just a question of how much. Same with gravity ... it always applies.

In terms of magnetism Iron (and cobalt) are just a bit special.
Click to expand...
Means: if all metalic & non metalic substances are magnetic to some extent? Whenther Iron(and cobalt) are just bit special or just bit more magnetic? How magnetic properties are/can be transffered to iron or other substances(all here)??:)
 
You must log in or register to reply here.

Back
Top Bottom