confident qualified hardworking bearded chemist in unifrom and gloves adding fluid into flask with pure water and mixing them while working overtime in lab
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Chemist working with glass flask. Test tubes. Closeup. Row of glass flasks in medical laboratory. Laboratory flask with liquid. Chemist doing chemical test in glass flask. Laboratory glassware
Chemist conducting research in the lab
Woman chemist doing chemical test in chemistry laboratory. Closeup of female chemist working with chemical liquid in test tube. Chemistry scientist mixing chemical liquid in flask in chemical lab
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Laboratory worker pours the chemical liquid into the flask
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Chemist pours liquid into flask. Stock footage. Chemist conducts experiment with flask and liquid substance. Laboratory experiment, close up