Potassium Hydroxide Pellets, 100g, Reagent Grade Neck_Wide Used to isolate Gram-negative bacteria

Used to isolate Gram-negative bacteria and differentiate lactose-fermenters (pink colonies) from non-fermenters (colorless)

Demonstrates electromagnetic induction and Faraday's law by stepping DC input into 25mm high-voltage sparks across adjustable electrode rods on an open chassis

75A single-phase rheostat with cover-protected constantan winding on a 200x56mm tube and 4mm safety socket terminals

Closed-position nickel-plated brass Hoffman tube clamp with 1-5/16-inch opening regulates flow through flexible rubber tubing in gas and liquid setups

Economy steam-heated expansion apparatus on a 27-inch base with three 19

Potassium Hydroxide Pellets, 100g, Reagent Grade Neck_Wide Used to isolate Gram-negative bacteriaReagent grade potassium hydroxide pellets, a strong base for titrations, saponification reactions, pH adjustment, and general organic chemistry procedures.