3-Piece Negative Stain Microscope Kit with Congo Red, HCl and Formalin-Nigrosin, 30mL Each

This negative stain set is a chemistry kit designed to perform negative staining on multiple bacterial cultures. Unlike direct stains that color the bacteria themselves, negative stains color the background of a smear, enhancing visibility of the unstained organisms against the colored surroundings. The kit includes 30 ml formalin-nigrosin solution, 30 ml hydrochloric acid 1%, and 30 ml Congo Red 1% aqueous. Safety data sheets are included. This kit is designed for laboratory use only and is not intended for food, drug, or household use.