This is pH Test Paper Neutral Litmus, 100 strips per vial. Used to test for acid or alkili.
This Liebig Condenser is made from heat resistant borosilicate glass for efficiency and high speed condensing. The Liebig condenser has a long tube. The inner tube is sealed to the large water cooling jacket. An inlet and outlet tube are sealed to opposite sides of the jacket (200mm).
These are high form porcelain crucibles with lid covers.
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