استفاده از دستگاه کجلدال K-360 کمپانی BUCHI جهت اندازه گیری SO2 در جامدات

راهنمای تصویری برای اندازه گیری مقدار SO2 در نمونه های جامد توسط دستگاه کجلدال کمپانی BUCHI مدل K-360 مراحل کار را مرحله به مرحله دنبال کنید: 1. Place stopcock in horizontal position 2. Ensure distillation unit is preheated 3. Add reagents to SO2 absorption vessel 4. Fill first receiver with iodine solution and water 5. Fill second receiver with ethanol 6. Take away the distillate outlet tube 7. Attach the SO2 absorption vessel that will collect the distillate 8. Replace the standard suction tube with the long suction tube 9. Set the spacer into position for 500 and 750 ml tubes 10. Using a powerful mixer, products can be homogenized to provide a representative sample 11. Weigh the homogeneous sample into a beaker and hydrolyze with a mixture of NaOH and ethanol 12. Wait for 10 minutes 13. Rinse the sample into a sample tube 14. The sample is acidified with phosphoric acid prior to the distillation 15. Connect the sample tube to K-360 16. Start the distillation method 17. Discontinue the distillation when the volume in the first receiver reaches the neck of the flask 18. Empty both receivers into a 600 ml beaker and cautiously rinse all glass parts 19. Add distilled water to increase the volume to 400 ml 20. Add sulfuric acid to acidify 21. Titrate with sodium thiosulfate until the solution is colourless 22. Use the App KjelReports to obtain results and generate reports that can be saved as PDF, e-mailed or exported آریا آفرین آزما - نماینده رسمی کمپانی Buchi در ایران تماس: 02186121616 www.aaa-co.net

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