Negative Stain Kit

Chemical kit designed to perform a negative stain on multiple cultures Negative stains dye the culture background rather than the bacteria themselves, enhancing visibility Kit contains enough material to run several stains Perfect kit for chemistry labs Safety data sheets included to inform safe storage and maintenance of chemicals A negative stain set colors the background of a smear rather than the bacteria (as a direct stain does). These stains have negatively charged functional groups so they can't bind directly to negatively charged bacteria. Kit Includes: 30ml Formalin-Nigrosin Solution 30ml Hydrochloric Acid 1% 30ml Congo Red 1% AQ DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only âš  WARNINGWARNING: This product can expose you to chemicals including Formaldehyde, Methanol and Benzidine-based dyes, which are known to the State of California to cause cancer and birth defects or other reproductive harm.