{"id":3759,"date":"2014-04-15T10:00:35","date_gmt":"2014-04-15T15:00:35","guid":{"rendered":"https:\/\/www.coleparmer.com\/blog\/?p=3759"},"modified":"2019-09-24T11:22:39","modified_gmt":"2019-09-24T17:22:39","slug":"taxing-your-knowledge-of-lab-equipment-take-the-tech-challenge","status":"publish","type":"post","link":"https:\/\/www.coleparmer.com\/blog\/taxing-your-knowledge-of-lab-equipment-take-the-tech-challenge\/","title":{"rendered":"Taxing Your Knowledge of Lab Equipment: Take the Tech Challenge"},"content":{"rendered":"

On a day known for taxing<\/em> us, let\u2019s add one more challenge.<\/p>\n

Chemical Compatibility with a Plastic Desiccator <\/strong><\/p>\n

\"TECHCHALLENGE[1]\"<\/a>HygroscopINC generally uses large plastic vacuum desiccators (greater than 20 L and up to 28.5\u2033 Hg vacuum pressure) to keep water from reentering its hygroscopic chemicals as they cool from 500\u00baF. However, they have noticed the plastic starting to crack and fissure when used to cool one of the newer chemicals. They suspect the plastic of their desiccator is not compatible with the fumes of their new chemical, and this is the cause of the fissures inside the plastic desiccators.<\/p>\n

They have not noticed any problems with the glass bottles storing the chemical or the silicone and neoprene gaskets on their desiccators, or the metal liner of the caps on the storage bottles. Outside of the glass and the thin stainless steel liner of the caps (silicone and neoprene), they do not have any chemical compatibility data. They are looking for a few desiccators that would be compatible with their newest chemical to replace the fissured plastic units.<\/p>\n

What would you suggest?<\/p>\n

    \n
  1. Glass\/Stainless Steel Desiccator with Two Stainless Steel Shelves <\/a>(08901-60).<\/li>\n
  2. The 250-mm Pyrex\u00ae Glass Vacuum Desiccator <\/a>(34548-29).<\/li>\n
  3. A vacuum oven with a stainless steel interior (such as the
    \n1.8 cu ft     Salvis\u00ae Vacucenter Oven <\/a>52402-10).<\/li>\n<\/ol>\n

    See answers below<\/em><\/strong><\/p>\n

    \u00a0<\/em><\/strong><\/p>\n

      \n
    1. Glass\/Stainless Steel Desiccator with Two Stainless Steel Shelves (08901-60).<\/strong>
      \nCorrect!<\/strong> This desiccator has a high capacity interior and is made of parts that are already known to be compatible with the new chemical.<\/li>\n
    2. The 250-mm Pyrex Vacuum Desiccator (34548-29). <\/strong>
      \nIncorrect. Based on the large volume the customer needs the desiccator to hold, this unit will not be sufficient. It has only a 10.5 L capacity.<\/li>\n
    3. A vacuum oven with a stainless steel interior (such as the
      \n1.8 cu ft Salvis Vacucenter Oven 52402-10) <\/strong>
      \nIncorrect. Although this option would satisfy the internal capacity and chemical compatibility issue, it is overkill. A much more economical alternative exists.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

      On a day known for taxing us, let\u2019s add one more challenge. Chemical Compatibility with a Plastic Desiccator HygroscopINC generally uses large plastic vacuum desiccators (greater than 20 L and up to 28.5\u2033 Hg vacuum…<\/p>\n","protected":false},"author":20,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[20],"tags":[887],"class_list":["post-3759","post","type-post","status-publish","format-standard","hentry","category-tech-challenge","tag-lab-equipment"],"yoast_head":"\nTaxing Your Knowledge of Lab Equipment: Take the Tech Challenge | from Cole-Parmer Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.coleparmer.de\/blog\/taxing-your-knowledge-of-lab-equipment-take-the-tech-challenge\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Taxing Your Knowledge of Lab Equipment: Take the Tech Challenge | from Cole-Parmer Blog\" \/>\n<meta property=\"og:description\" content=\"On a day known for taxing us, let\u2019s add one more challenge. Chemical Compatibility with a Plastic Desiccator HygroscopINC generally uses large plastic vacuum desiccators (greater than 20 L and up to 28.5\u2033 Hg vacuum...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.coleparmer.de\/blog\/taxing-your-knowledge-of-lab-equipment-take-the-tech-challenge\/\" \/>\n<meta property=\"og:site_name\" content=\"Cole-Parmer Blog\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/antylia\" \/>\n<meta property=\"article:published_time\" content=\"2014-04-15T15:00:35+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2019-09-24T17:22:39+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.coleparmer.com\/blog\/wp-content\/uploads\/2014\/01\/techchallenge1.jpg\" \/>\n<meta name=\"author\" content=\"Cole-Parmer Blog Team\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@antylia\" \/>\n<meta name=\"twitter:site\" content=\"@antylia\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Cole-Parmer Blog Team\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Taxing Your Knowledge of Lab Equipment: Take the Tech Challenge | from Cole-Parmer Blog","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.coleparmer.de\/blog\/taxing-your-knowledge-of-lab-equipment-take-the-tech-challenge\/","og_locale":"en_US","og_type":"article","og_title":"Taxing Your Knowledge of Lab Equipment: Take the Tech Challenge | from Cole-Parmer Blog","og_description":"On a day known for taxing us, let\u2019s add one more challenge. 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