Jan 22, 2014 12:40
10 yrs ago
German term
Platinreihe I
German to English
Science
Chemistry; Chem Sci/Eng
Colloidale Metale der Platinreihe I
(title)
(title)
Proposed translations
(English)
| 3 | platinum group I |
Alison MacG
|
| 3 -1 | platinum group I |
Yorkshireman
|
References
| platinum-group metals/elements |
rainerc (X)
|
Proposed translations
5 days
Alison MacG
United Kingdom
United Kingdom
Native in English
Works in field
United Kingdom
Patents and related material specialist
Native in: English (Variants: Scottish, UK, British) 
Works in: German to English, French to English, Swedish to English, and 4 more.
Related KudoZ points
:
20
Selected
platinum group I
where "I" refers not to some sort of sub-group of the platinum group, but to part 1 of a two-part report or article (see discussion)
Both articles are listed here:
Über colloïdale Metalle der Platinreihe I
Über colloïdale Metalle der Platinreihe II
http://finden.nationallizenzen.de/Record/ZDB-1-WIS@162865112
The full texts are both available here
http://archive.org/stream/journalfrprakti00unkngoog/journalf...
and there does not appear to be any reference to special sub-groups.
The first report states at the beginning:
Die vorliegende Abhandlung ist ein kurzer Auszug aus der Inauguraldissertation des Hrn. G. Hofmeier: Über anorganische Kryptoïde und Colloïde.
and at the end:
In einer weiteren Abhandlung die Colloïde von Rhodium, Ruthenium und Osmium zu beschreiben, behalten wir uns vor.
The second report states at the beginning:
In einer vorhergehenden Mitteilung haben wir über beständige, flüssige Hydrosole des Platins, des Palladiums und des Iridiums berichtet, welche wir dadurch erhielten, daß wir Salze der betreffenden Metalle bei Gegenwart von Gummi-arabicum-Lösung mittels Hydrazinhydrat reduzierten und die entstandenen colloïdalen Lösungen in bekannter Weise durch Dialyse reinigten.
Wir haben nun unsere Untersuchungen auch auf Rhodium, Ruthenium und Osmium ausgedehnt und wollen über die erhaltenen Resultate 1 ) hier wieder kurz berichten.
Both articles are listed here:
Über colloïdale Metalle der Platinreihe I
Über colloïdale Metalle der Platinreihe II
http://finden.nationallizenzen.de/Record/ZDB-1-WIS@162865112
The full texts are both available here
http://archive.org/stream/journalfrprakti00unkngoog/journalf...
and there does not appear to be any reference to special sub-groups.
The first report states at the beginning:
Die vorliegende Abhandlung ist ein kurzer Auszug aus der Inauguraldissertation des Hrn. G. Hofmeier: Über anorganische Kryptoïde und Colloïde.
and at the end:
In einer weiteren Abhandlung die Colloïde von Rhodium, Ruthenium und Osmium zu beschreiben, behalten wir uns vor.
The second report states at the beginning:
In einer vorhergehenden Mitteilung haben wir über beständige, flüssige Hydrosole des Platins, des Palladiums und des Iridiums berichtet, welche wir dadurch erhielten, daß wir Salze der betreffenden Metalle bei Gegenwart von Gummi-arabicum-Lösung mittels Hydrazinhydrat reduzierten und die entstandenen colloïdalen Lösungen in bekannter Weise durch Dialyse reinigten.
Wir haben nun unsere Untersuchungen auch auf Rhodium, Ruthenium und Osmium ausgedehnt und wollen über die erhaltenen Resultate 1 ) hier wieder kurz berichten.
4 KudoZ points awarded for this answer.
Comment: "Thanks, it indeed refers to paper #1"
-1
14 mins
platinum group I
Encyclopaedia Britannica says:
"platinum group, six metals, in order of increasing atomic weight, ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and platinum (Pt). The elements all possess a silvery white colour—except osmium, which is bluish white. The chemical behaviour of these metals is paradoxical in that they are highly resistant to attack by most chemical reagents yet, employed as catalysts, readily accelerate or control the rate of many oxidation, reduction, and hydrogenation reactions."
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Note added at 16 mins (2014-01-22 12:56:50 GMT)
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Platinum group metal colloids may also help.
Peer comment(s):
| neutral |
rainerc (X)
: But why "group I"? // Yes, the elements obviously have different atomic weights.
37 mins
|
|
I wondered about that myself - but I left it in as it was part of the question. Maybe something to do with atomic weights?
|
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| disagree |
Cilian O'Tuama
: doesn't really make sense, as opposed to Pt group II?
1 day 12 hrs
|
Reference comments
50 mins
Reference:
platinum-group metals/elements
Nowadays the PGEs are subdivided into iridium-group platinum-group elements (IPGEs: Os, Ir, Ru) and palladium-group platinum-group elements (PPGEs: Rh, Pt, Pd).
see: http://en.wikipedia.org/wiki/Platinum_group
lirka's source text uses a completely different classification (Pt, Pd and Ir; and Rh, Ru and Os) for reasons I cannot follow.
see: http://en.wikipedia.org/wiki/Platinum_group
lirka's source text uses a completely different classification (Pt, Pd and Ir; and Rh, Ru and Os) for reasons I cannot follow.
Note from asker:
| This text is from 1905! It's full of (to me) illogical things... |
Peer comments on this reference comment:
| neutral |
Yorkshireman
: Could the "I" in the question be for Iridium?
20 mins
|
|
most definitely not!
|
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| agree |
Cilian O'Tuama
: Agree that 1 is definitely not Iridium
1 day 11 hrs
|
Discussion
http://onlinelibrary.wiley.com/doi/10.1002/prac.19050710134/...