Polyurethane Foam kit, to explain how when two viscous liquids are mixed together, they initiate a reaction producing a light weight polyurethane foam, Includes: 1 x 500ml Polyurethane Foam System, Part A (Mixture), 1 x 500ml Polyurethane Foam System, Part B (Mixture)
Wards* Chemistry Endospore Stain Kit, for 50 Slides, Distinguish between endospores, vegetative structures of bacterial cells,The endospores will stain green against a pink background, Includes spore staining solution, safranin O solution, and instructions
Wards* Chemistry Endospore Stain Kit, for 750 Slides, Distinguish between endospores, vegetative structures of bacterial cells,The endospores will stain green against a pink background, Includes spore staining solution, safranin O solution/instructions