{"product_id":"parr-model-4748a-200-30509-acid-digestion-vessel","title":"Parr Model 4748A 200 30509 Acid Digestion Vessel","description":"\u003cp\u003e\u003cstrong\u003eParr Instruments® Model 4748A 200 30509 Acid Digestion Vessel\u003c\/strong\u003e\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003e4748 and 4748A vessels are largest of all Parr acid digestion vessels\u003c\/li\u003e \u003cli\u003e4748 has 125 mL, removable PTFE cup in stainless steel body with six cap screws in screw cap to seal flanged PTFE cup\u003c\/li\u003e \u003cli\u003eExpandable wave spring maintains continuous pressure on the seal during cooling cycle when PTFE parts might otherwise relax and leak\u003c\/li\u003e \u003cli\u003eStirring can be provided with magnetic stir bar\u003c\/li\u003e \u003cli\u003e4748A provides 200 mL modification of the 125 mL, 4748 PTFE lined vessel for users who want additional capacity in this model\u003c\/li\u003e \u003cli\u003eSafety blow-off disc above PTFE cup will release pressure through opening in vessel head if pressure should accidentally reach 3500 psi range\u003c\/li\u003e \u003cli\u003eFor safe operation, pressures in these vessels should never exceed 1900 psi and temperatures must not exceed 250 °C\u003c\/li\u003e \u003cli\u003eOperations should be conducted well below these limits whenever possible due to potential destructive forces in large vessel charge\u003c\/li\u003e \u003cli\u003eAlso advisable to test any new procedures for safety in one of smaller vessels before scaling up to these sizes\u003c\/li\u003e \u003cli\u003eWrench for cap screws is furnished with these vessels\u003c\/li\u003e \u003cli\u003eNo other accessories are required\u003c\/li\u003e \u003c\/ul\u003e","brand":"Parr Instrument Company","offers":[{"title":"EA (1)","offer_id":51110875824443,"sku":"90-4000-52-EA","price":2150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/90-4000-52.png?v=1784703205","url":"https:\/\/preiser.com\/products\/parr-model-4748a-200-30509-acid-digestion-vessel","provider":"Preiser Scientific","version":"1.0","type":"link"}