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Post by dosamaniac on Jul 23, 2021 7:16:00 GMT
India 2014 International Year of Crystallography [₹20.00] The vignette shows the three dimensional molecular structure of (1E,6E)-1,7-bis(4-hydroxy-3-methoxyphenyl)hepta-1,6-diene-3,5-dione/ curcumin which is a diarylheptanoid, a phytopolylphenol pigment which imparts the characteristic yellow color to the ubiquitous Indian spice turmeric. 😋 Incidentally Indian Feudatory State Jammu and Kashmir used turmeric in the ink to print the J&K 1883 ⅛A SG 138/139 stamps. |
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Post by dosamaniac on Jul 23, 2021 10:35:08 GMT
Portugal 1971 I Congresso Hispano-Luso-Americano de Geologia Economica 1971 Lisboa [$3.50] (Af 1111)  The stamp shows the mineral beryl, a dihexagonal dipyramidal crystal of cyclosilicate bimetallic salt of beryllium i.e. beryllium aluminium cyclosilicate [Be₃Al₂(SiO₆)₃] from which metallic beryllium can be economically extracted thru the process beryllium hydroxide→ammonium beryllium fluoride→Be. It must be mentioned that the name Beryllium has Indian origin.  Beryllium is derived from Latinus word beryllus which comes from Ellēnika word βήρυλλος which in turn came from Pakrit (Indian language) word वेलुरिया (veluriyā) which was derived from Sanskritam (Indian language) word वैदूर्य (vaiḍūrya) which finally traces its origin from the Kannada (Indian language) toponym ಬೇಲೂರು (Beluru), now in Karnataka state. |
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Beryllium Guy
Moderator 
Posts: 5,654 
What I collect: Worldwide Stamps 1840-1930
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Post by Beryllium Guy on Jul 24, 2021 15:20:32 GMT
Minerals on stamps is one of my side collecting interests. When he visited me, Beryllium Guy was asking about stamps about his favourite element. I told him then that I was pretty sure I had seen one featuring the beryl mineral, at least, and I finally found it today: a se-tenant pair from the TAAF. YT#726-27, from 2015.  Quoting to move post into Chemistry on Stamps thread. |
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Beryllium Guy
Moderator
Posts: 5,654
What I collect: Worldwide Stamps 1840-1930
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Post by Beryllium Guy on Jul 24, 2021 15:34:25 GMT
It must be mentioned that the name Beryllium has Indian origin. Beryllium is derived from Latinus word beryllus which comes from Ellēnika word βήρυλλος which in turn came from Pakrit (Indian language) word वेलुरिया (veluriyā) which was derived from Sanskritam (Indian language) word वैदूर्य (vaiḍūrya) which finally traces its origin from the Kannada (Indian language) toponym ಬೇಲೂರು (Beluru), now in Karnataka state. I just wanted to say thank you for an excellent post about beryllium.... really well done! As perhaps you figured out from some of my older posts, I have spent most of my professional career working in the beryllium industry. Most of my knowledge in the field is about the metallurgy and industrial production of the material, so your points about the etymology of the word 'beryllium' were new information for me. I never knew about the connection to India.... really interesting. To my knowledge, your post is only the second one on TSF about beryllium. What I believe to be the first one was made by Xavier ( hrdoktorx ), also showing a couple of stamps depicting beryl ore. His post was made in the thread Minerals on Stamps: thestampforum.boards.net/thread/5746/minerals-on-stamps, but I have quoted it above to include the image of his stamps after yours. Anyway, thanks again for a very nice post, with special interest for me. -Chris  P.S. Congratulations on making your 50th post and reaching full membership status. |
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Post by dosamaniac on Jul 24, 2021 18:37:46 GMT
TQ Be Guy for your kind words. Here is an emerald for you. Uganda 1988 Minerals of Uganda: Emerald [50USh] (Sc 604) Emerald is a type of beryl [Be₃Al₂(SiO₆)₃]. The characteristic green color results due the chromophore trivalent chromium (III) [Cr³ +] ions present between the beryllium aluminium cyclocilicate crystal lattices. For me, beryllium (also magnesium) is a dull element because it does not impart any color when heated in oxidizing flame unlike other metals like sodium or copper.  I don't know why the superscript + is not correctly showing. [Moderator edit - superscript "+" is now showing correctly] |
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hrdoktorx
Member 
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Jul 25, 2021 7:39:07 GMT
Great idea for a thread! Since I've already been co-opted into it, let's make it official with this set of four issues and a souvenir sheet from Macao showing the structure of DNA and its four constituent bases: Adenine, Cytosine, Guanine, and Thymine.  |
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Post by dosamaniac on Jul 25, 2021 12:01:00 GMT
Latvija 2020 Emīlija Julianovna Gudriniece (1920–2004) [€1.00] (Sc 1057)  The stamp shows the three dimensional structure of (2E)-2-[(5-nitro-2-furyl)methylene]hydrazine
carboxamide/ nitrofurazone (C₆H₆N₄O₄), a semicarbazone, synthesized by formal condensation of hydrazinecarboxamide with 5-nitrofuran-2-carbaldehyde. It is used as a broad spectrum antibiotic in ointment base for topical use in both Gram+/– bacterial infection in human dermis. |
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brightonpete
Departed
Rest in Peace
On a hike at Goodrich-Loomis
Posts: 5,110
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Post by brightonpete on Jul 25, 2021 12:12:29 GMT
Here is a stamp honouring the discovery of uranium with its molecule displayed...
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Post by dosamaniac on Jul 25, 2021 12:44:59 GMT
The Canada 1980 Uranium Resources [35c] (Sc 865) stamp actually depicts the tetrahedral cubic crystals of uranium dioxide [UO₂] which is the primary component of the uranium ore uraninite, in addition to triuranium octoxide [U₃O₈].  |
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brightonpete
Departed
Rest in Peace
On a hike at Goodrich-Loomis
Posts: 5,110
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Post by brightonpete on Jul 25, 2021 13:06:49 GMT
Not being anywhere near a chemist, I thank you, dosamaniac. It's an interesting subject with no doubt an abundance of stamps to collect!
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Post by dosamaniac on Jul 25, 2021 14:16:38 GMT
GB 2001 Centennial of Nobelpriset: Buckminsterfullerene [19p] (SG 2232)
The stamp shows the dotriacontahedral crystal of (C₆₀-Ih)[5,6]fullerene, a member of fullerene family, which
is formed by the cyclodehydrogenation of polyarene. |
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Jul 26, 2021 5:51:29 GMT
This thread would of course not be complete without the Mendeleiev periodic table of elements, the most iconic representation of the science of chemistry. UNESCO declared 2019 the International Year of the Periodic Table and Portugal marked the occasion with the following souvenir sheet:  |
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Jul 27, 2021 6:17:54 GMT
Part of series issued by South-West Africa in 1989, featuring minerals with their chemical composition. The same series was re-issued post-independence in 1991 with a Namibia moniker (but there I only have the 5c issue):  Featured are: - Gypsum: CaSo4 - 2 H20
- Fluorite: CaF2
- Mimetite: Pb5(As04)3Cl
- Boltwoodite: K(H30)(UO2)(SiO4)
If I'm not mistaken, these stamps made an appearance on one of grahambeck's videos. |
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eggdog
Member
I want a new Harley!
Posts: 464
What I collect: It's complicated....
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Post by eggdog on Jul 28, 2021 0:52:15 GMT
Here's a 1995 set from Bulgaria: Pyromorphite, agate, and sphalerite.  I don't know that much about minerals - and I don't know if these particular minerals have any relationship to Bulgaria - but I've always liked looking at them when I'm in a natural history museum or someplace like that, and I like collecting Bulgarian stamps, so there it is! |
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Jul 28, 2021 6:15:18 GMT
Series from West Germany, issued in 1979, commemorating various German Nobel prize recognitions. From left to right: - Otto Hahn, Nobel Prize for Chemistry in 1944, for the (co-)discovery of nuclear fission. It's a physics process, but since it creates new nuclei and elements, it counted as chemistry. Ernest Rutherford got to the same treatment for his own Nobel Prize about the structure of the atom, which was in Chemistry instead of Physics.
- Albert Einstein, Nobel Prize for Physics in 1921, for the explanation of the photo-electric effect. It is little known that it is not for his work on relativity that he was recognized by the Nobel committee.
- Max von Laue, Nobel Prize for Physics in 1914, for establishing the foundations of the science of X-ray crystallography, which allowed for determination of crystal structures and moved chemistry on a more physics-based footing.
 I first saw these stamps illustrating a talk by another Nobel laureate (Leon Lederman, if my memory serves me right) while I was an physics undergraduate at McGill University. It took me more than a decade to finally obtain them, and I was very happy when I did! |
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Jul 28, 2021 18:38:33 GMT
French issue from 1970 to mark 150 years since the discovery of the quinine anti-malarial drug, and featuring its chemical formula.  I'll let dosamaniac enlighten us as to its full scientific name, my vague memories from organic chemistry class being woefully insufficient... |
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salentin
Member
collecting Germany,where I live and about 20 more countries,half of them in Asia east of the Indus
Posts: 5,615
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Post by salentin on Jul 29, 2021 13:24:55 GMT
100 years benzene formula,by August Kekulé von Stradonitz (1829-1896). Issued Aug.14th,1964. (from a set of 3)
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Jul 29, 2021 19:55:07 GMT
You beat me to it, salentin ! I had scanned the same stamp to post tonight. Legend has it that Kékulé figured out the benzene's structure after a dream in which he saw a snake swallowing its tail. |
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Jul 30, 2021 23:32:09 GMT
OK, so here's a different offering. Greenland self-adhesive issue from 2015, part of series on mineral riches of the island, showing what I think is the chemical structure of olivine:  |
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cursus
Member
Posts: 1,764
What I collect: Catalan Cinderellas. Used Switzerland, UK, Scandinavia, Germany & Austria. Postal History of Barcelona & Estonia. Catalonia pictorial postmarks.
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Post by cursus on Jul 31, 2021 4:41:41 GMT
UK 1977. Royal Institute of Chemistry. Stamps, show different moleculles and techniques.
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Jul 31, 2021 20:54:55 GMT
From the extensive set of "Mexico exports" stamps, three issues featuring chemical products:  |
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salentin
Member
collecting Germany,where I live and about 20 more countries,half of them in Asia east of the Indus
Posts: 5,615
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Post by salentin on Aug 1, 2021 16:26:02 GMT
Galena and Sphalerite (ZnS) Issued Jan.12th,1968,celebrating the millenium of ore-mining in the Harz mountains. (from a set of 3)
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Ryan
Member
Calgary, Alberta, Canada
Posts: 2,720
What I collect: If I have a catalogue for it, I collect it. And I have many catalogues ....
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Post by Ryan on Sept 23, 2021 19:01:10 GMT
GB 2001 Centennial of Nobelpriset: Buckminsterfullerene [19p] (SG 2232)
The stamp shows the dotriacontahedral crystal of (C₆₀-Ih)[5,6]fullerene, a member of fullerene family, which
is formed by the cyclodehydrogenation of polyarene.This stamp has a fun gimmick to it, and it is relatively easy to find, as are most of the 1st & 2nd class British stamps of that time frame. The print is made with thermochromic ink which changes colour according to temperature. If you hold your thumb over the stamp (or if you're picky about touching your stamps, try holding it near a source with some moderate warmth like a light bulb or the screen of your TV) the ink changes tone and the image changes. Here's an example image nabbed from the letter to the editor section of the scientific journal Chemical & Engineering News, of all places.  It turns out that the scientist who wrote the letter, Dr. Dan Rabinovich, is a big promoter of collecting stamps with scientific themes. Back in November, the American Philatelic Society held an online Stamp Chat with Dr. Rabinovich. Since the title of the chat, "The World of Chemistry on Postage Stamps", is an exact fit for this thread, I've included the video below (in large size to make it easier to see the stamps, but you can use the YouTube screen size controls to go full screen in order to see them better still). Ryan |
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Oct 9, 2021 20:23:59 GMT
Two issues from Monaco showing important bio-molecules: DNA on the right and histamine on the right:  |
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cursus
Member
Posts: 1,764
What I collect: Catalan Cinderellas. Used Switzerland, UK, Scandinavia, Germany & Austria. Postal History of Barcelona & Estonia. Catalonia pictorial postmarks.
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Post by cursus on Oct 12, 2021 7:34:50 GMT
Erlenmeyer vase:
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Nov 6, 2021 15:31:42 GMT
Stamp from Spain issued in 1969 for the 6 th European Biochemistry Congress and showing a DNA strand and its sequencing:  |
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salentin
Member
collecting Germany,where I live and about 20 more countries,half of them in Asia east of the Indus
Posts: 5,615
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Post by salentin on Feb 16, 2022 12:26:08 GMT
125 years "Synthetic Fibres Research",showing chain-molecules building a cloth-design. Issued Feb.18th,1971.
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hrdoktorx
Member
Posts: 6,588
What I collect: France (and French territories), Africa, Canada, USA, Germany, Guatemala, stamps about science, flags, maps, stamps on stamps...
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Post by hrdoktorx on Feb 3, 2024 19:29:41 GMT
The two new 2023 additions to the yearly series from Norway on the topic of scientific research:  |
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Post by dosamaniac on Mar 21, 2024 13:34:41 GMT
Portugal 2014 International Year of Crystallography: Caffeine [€0.80] (Mun 4476)
The stamp shows 3D model of 1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione/caffeine [CN1C=NC2=C1C(=O)N(C(=O)N2C)C/C₈H₁₀N₄O₂], a methylxanthine alkaloid and a member of the purine family, the main natural source of it being the coffee beans. |
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