i did run in the same problem. I would like to say, first is better not to use sulfur containing products with platinum crucible (try ceramics or z ***** ***Cleaning the platinum crucibles that are used during the synthesis of silicate glasses requires great care and attention to safety. Platinum crucible formed by die stamping Advantages: small processing difficulty and high processing efficiency; Disadvantages: the bottom die stamping is used to make the platinum sheet stretch forming. Pt, PtAu5, PtRh10 etc.) Sold individually as well as in the Platinum/Palladium Kit our 2650838. Platinum crucible recovery and regeneration service. I just re-read the question and the answers. If the surface is darkened, this may be due to the formation of Pt-oxide, especially at temperatures b We use the latest in refining methods and equipment to efficiently refine your Platinum crucible scrap. Platinum Crucibles (Purity 99.95%) offer high temperature strength and high melting point. We buy platinum scrap directly from companies and individuals to provide the highest market value for your metals. I used a platinum crucible a couple of times to melt some samples wrapped in Al-foil. Heat the crucible until the bicarbonate melts, stirring frequently until a surface layer of red potassium salt appears (approximately 1 minute). Remove from the heat and pour out the melt Also about platinum cleaning from gold nano-particles: https://www.researchgate.net/post/How_do_you_clean_your_platinum_crucible_from_Gold_nano-p Save. You can clean your crucible also at high temperature by using standard white glass (e.g. from yoghurt or glass bottles) which are typically lime-so Availability: In Stock Qty 15. Before Regularly scheduled hours Thank Carlos and Emanuel for your wonderful answers. I will try hot HCl with a higher concentration, cool concentrated HBr (with a drop of H2O2 if Platinum crucibles are created with enough strength necessary for use in a chemical laboratory Prohibit contamination at high temperatures up to 2000C These Platinums technicians carefully and With our service, companies using crucibles on a continuous basis can now recover used material and reuse it for the production of new one. If the cleaning is not clean, use K2S207 to melt at a low temperature for 5-10 minutes. Reviews on Platinum Cleaning in New York, NY - Platinum Cleaning, Yes! This domain provided by nic.ru at 2021-04-06T04:31:35Z (1 Year, 78 Days ago) , expired at 2023-04-06T04:31:35Z (0 Years, 286 Days left). You may tryto repeat cleaning of the platinum crucible also with boiling conc. aq. hydrochloric acid, but usingthe considerably higher conc. of ~ The utility model provides a platinum crucible cleaning and reshaping set which can reduce damage to platinum materials. Possibly caused deformations, by the use of the labware, it is not recommended to repair by your self, because it can cause an undoing. Caulking. Collect catalytic converters if you have access to junk cars. If molten NaOH is used for cleaning, PtRh10 offers best corrosion resistance. We do not charge any other melt or incoming weight fees. Mechanical cleaning with salt by scrubbing with several times boiled out, finely sifted (DIN 80) wet sea sand, which can only remove the dirt on the surface. Use a clean cloth to dry the surface. If your crucible is platinum, use alumina-impregnated nylon webbing to complete cleaning the surface. Let the crucible cool. Thank you for reading our article and we hope it can help you to have a better understanding of the use of ceramic crucibles and how to clean them. Excellent Cp performance up to 1600 C Up to 150 uL volume increases the sensitivity Low mass pushes the resolution Material guarantees high thermal conductivity Recommended for: Compared to standard materials for laboratory crucibles (Pt and PtRh10), grain stabilized platinum (GSP) offers improved stiffness and resulting shape retention and easier mechanical cleaning. Call us today at 800-426-2344 The inside and outside finish is very high. Cleaning Pt-Crucibles and handling Hydrouoric Acid (HF) in the Lab ***** IF YOUR SKIN COMES IN CONTACT WITH HF SEEK MEDICAL ATTENTION IMMEDIATELLY. When picking up a hot crucible / mould, platinum tipped tongs must be used to prevent contamination. Now, there are some residual materials in the crucible (solidified), not easy to remove out.I would like some efficient chemical treatment to clean and remove the residual without losing (etching) platinum.Thanks in advance! The utility model discloses the platinum crucible easy to cleaning,Including cleaning container and cleaning brush device,The bottom of cleaning container is provided with motor,The Site is running on IP address 91.201.52.231, host name h28.netangels.ru ( Russia ) ping response time 17ms Good ping . Next reference(p. 98; in Portuguese) addresses cleaning of platinum cruciblesfrom molten glass: https://www.researchgate.net/publication/23115796 Crucible lids of platinum can be cleaned by boiling in a suitable solvent.For the removal of substances which have alloyed with the surface, scour with alumina powder. Platinum Crucible. 2. Delivery fee is not included. The platinum crucible cleaning and reshaping set comprises If your crucible contained a silicate glass you can put it in HF and let it clean which it might take some time. To optimize the labware for the chosen processes in respect to temperature, stability, susceptibility to oxidation, easy cleaning and lifetime performance we have several materials (e.g. Unit price (current prices): US $ 45 / gram. Platinums technicians clean metal and stone surfaces by hand scrubbing or power washing using either water or biodegradable cleaners. 1. Platinum Labware cleaning. Made from 99.95% pure platinum and platinum alloys, these crucibles have thicker bases and lighter walls that help them endure harsh use. Non-wetting 5% gold-platinum alloy crucibles are also available for use in the glass, ceramic and cement industries. Measurement and Results - Cleaning platinum (Pt) crucibles Inorganic Ventures will be closed Monday, September 5th, in observance of Labor Day. Its fine-manufactured after high-frequency melting, forging and rolling. The inner and outer walls of the platinum crucible should always be kept clean and bright. Platinum Labware should be placed on clean surface at all times to prevent This is why platinum crucibles are so well suited to sample preparation of fusion samples and wet chemical digestions. High-performance platinum crucibles are known for a long length of service and high repeatability due to their extreme chemical resistance. There are a few ways that platinum crucibles can be cleaned and they are fairly simple. e recovery and regeneration service is one of 88Labware's major strengths. If your crucible is platinum, use Quantity: Product Description. They are most often used in XRF sample preparation, ash testing, wet chemistry, and Loss on Ignition (LOI) applications. Sell Platinum crucibles to us today! Crucibles-platinum.com. Catalytic converters Crucible lids of platinum can be cleaned by boiling in a suitable solvent.For the removal of substances which have alloyed with the surface, scour with alumina powder. Synonyms: crucibles We process all forms of platinum scrap. One method I found useful is room-temperature concentrated HBr, and if the HBr itself is not enough add just a droplet of H2O2 (generating a bit of Share. The used platinum crucible can be cleaned by boiling with a 1:1 HCl solution. Cleaning Platinum Crucibles with Hydrofluoric Acid. Our crucible line offers a wide range of dimensions and variations suitable for every need in the analytical lab. Helvetica. Cleaning Service, MyClean Cleaning Services, New York's Little Elves, First Call Platinum Cleaning Service, 1 If a piece of jewelry is labeled "platinum," that means its made of over 95 percent platinum. Platinum offers oxidation resistance in air and oxygen; and corrosion resistance in acids and melted salts. Call Us @ 1-888-939-0123 with any questions or If K2S207 is invalid, you can use Na2C03 or borax to melt. Capacity: 180g. You can clean your crucible also at high temperature by using standard white glass (e.g. The steps below need to be followed WITHOUT available. 1.Platinum container must use platinum of high purity of 99.95%. We are your direct Platinum crucible buyer. Platinum crucibles are mainly used for TGA or TGA/DSC measurements at temperatures above 640C. One way of cleaning platinum crucibles is by soaking them in diluted hydrofluoric acid for at least 24 hours, then boiling for three Two things I would like to add: 1. On HBr + H2O2: I was using 10-20 ml concd. HBr + 0.03-0.05 ml H2O2 30% (cleaning fairly large crucibles) - gives 2651234. Crucible for a maximum capacity of 180 grams of platinum for use with the Galloni Pressovac Touch. Use a clean cloth to dry the surface. We do our own melts, assays, and refining. Platinum crucible is one of the most useful tools of the analytical chemist. Synonyms: Many years ago we regularly used platinum crucibles in many analytical chemistry procedures, and according to my analytical chemistry book, platinum can be cleaned by from yoghurt or glass bottles) which are typically lime-soda-silica glasses with a melting point of
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