Welcome at the homepage of Dr. Dietmar Glindemann
| Home(English) | Business products: Glindemann PTFE Sealing Rings | Academics - Scientific Publications Dietmar Glindemann | ||
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Last
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November 1,
2009 |
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| Internet domains of Dr. Dietmar GLINDEMANN: www.glindemann.net, www.phosphine.net, www.taperjoints.eu | ||||
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News Worldwide customers: "Glindemann PTFE Sealing Rings" are sold by Sigma-Aldrich. Please contact Dr. Glindemann at dglinde@aol.com if you currently experience ordering problems.
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Contact:
Dr. Dietmar GLINDEMANN Goettinger Bogen 15 D-06126 Halle Germany ph +49-(0)345-6879948, fx +49-(0)345-6871333. e-mail dglinde@aol.com, Internet : www.glindemann.net |
GLINDEMANN®-sealing ring  (PTFE) for ground taper (conical) joints
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| Back to top Short description of the Sealing-Ring-Business of Dietmar GLINDEMANN (efficient and economical PTFE Sealing Ring for conical glass joints) Laboratory work with chemical glass equipment and containers often demands hermetic and clean sealing of conical joints and stoppers. Joint grease is not solvent resistant and not clean. The known PTFE-joint sleeves and stoppers are expensive and not very tight. Therefore, a fine PTFE-ring seal on ground tapered glass joints has been developed. The ring is inexpensive, gas-tight, solvent-tight, chemically inert, temperature resistant and prevents freezing of joints. Estimated 1.5 million seals have been tested on the market in the last years. Production: Dietmar Glindemann. Distribution: To see a list of distributors of GLINDEMANN® sealing rings and their catalogue numbers click on the "Business" part of this site. |
| Back to top Short description of the academic scientific work of Dietmar GLINDEMANN Physicochemistry (separation, distillation, chromatography) Trace analysis of volatile toxins, odorants containing heteroelements (sulfides, phosphine, organophosphines and other organoelement compounds) Advanced gas chromatographic trapping techniques GC-ICP interface construction Odor research - chemical analysis of odorants, odor measurement by olfactometry, odor evaluation DMSO (dimethyl sulfoxide) waste residues, DMSO reduction to dimethyl sulfide (DMS) and sewage plant odor Links to cooperating Virginia Tech professors: Andrea M. Dietrich: http://www.cee.vt.edu/people.php?cat=faculty&action=detail&id=cbf7ffd6930d92993190add4283cd350 Marc A. Edwards http://www.cee.vt.edu/people.php?cat=faculty&action=detail&id=927d7092eb2aad90ce864f9550609736 John T. Novak http://www.cee.vt.edu/people.php?cat=faculty&action=detail&id=20dcb5f3315b25b2d589a65ab129f833  Learn why metals smell metallic... Link to the paper "The Two Odors of Iron..." Artwork: D. Glindemann / Angew. Chem. (click to enlarge) About www.phosphine.net Applying a new developed gas chromatographic trace analytical technique we got extensive knowledge concerning the existence and formation mechanisms of phosphine in the earth’s environment. We discovered phosphine in waste gas, marsh gas, biogas, landfill gas, wetland sediment, soil, intestinal tract of mammals, faecal sludge, animal manure, landfill, technical metals, industrial waste, stone minerals, food and cosmic fall down. It was also found to be a global trace component of the earth’s atmosphere. Do not confuse phosphine (PH3) with phosgene (COCl2, Carbonoxidechloride, Carbonyldichloride, Carbonicaciddichloride). Diphosphine (P2H4 , Diphosphane) a self igniting gas, was found in fermentation experiments using human feacal bacteria. (Publication: Gassmann, G., Glindemann, D.: Phosphane in the Biosphere. Angew.Chem.Intern.Edit. 32 (1993) 761-763.). The results of this publication, phosphine and diphosphine, was discussed in various printed media (John Emsley) and TV media (US discovery channel...) as the igniter of methane gas in human flatus gas (to produce spontaneous human combustion (SHC), an appropriate term for this would be "ignis flatus") and in marsh gas (to form swamp lights named as Will o' the Wisp or "ignis fatuus". A biochemical pathway of how microorganisms could produce enzymes to reduce phosphate to phosphine is still not discovered. |
| Back to top Interesting Chemistry links Periodic Table of the Elements Links to property data & history of the first 112 elements. Where to find MSDS (material safety data sheets) Rob Toreki's Organometallic Hyper Text Book Applied Organometallic Chemistry, Instruction to Authors ISSN: 0268-2605 Organometallics Instructions for Authors and Editors The Journal of Organic Chemistry, Instructions for Authors and Editors www.phosphine.com Homepage of Stephen J Pratt |
| Back to top Glassblower Societies worldwide links American Scientific Glassblowers Society British Society of Scientific Glassblowers German Scientific Glassblowers Society, Verband Deutscher Glasbläser e.V Scientific Glassblowers Association of Australia and New Zealand Scottish section of British Glass Society Scottish Glass Society Vereinigung Österreichischer Glasbläser Belgische en Nederlandse Vereniging voor Glastechniek |
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Back to top Keywords: Glass ground conical taper standard joint PTFE sealing ring seal, gasket, socket, sleeve, stopper, plug, leakage, vacuum, pressure, grease, jamming freezing Phosphine (CAS. 7803-51-2, PH3, Phosphane), Diphosphine (P2H4 , Diphosphane) toxic, environment, marsh gas, biogas, landfill gas, wetland sediment, air, food, diphosphine spontaneous human combustion (SHC), will o' the wisp, jack o' lantern, Phosgene organometallic, methyl mercury, dimethyl mercury (CAS 62-38-4, 593-74-8.), Organotin, tetramethyl tin (CAS 594-27-4), trimethyl tin (CAS 1066-45-1), Tributyltin chloride ( CAS 1461-22-9), octyl tin, phenyl tin, Tetraethyl lead (CAS 78-00-2), Tetramethyl lead (CAS 75-74-1) |
