LC₅₀ of 2-Bromopropane

Abstract

LC₅₀ of 2-bromopropane was reexamined by using the OECD guideline in ICR mouse. The mice, 3 males and 3 females, were exposed to 2-bromopropane at five different concentrations for 4h in inhalation chambers. The exposed animals were observed for 14 days. The animals which had survived and died were counted for the LC₅₀ determination. The LC₅₀ was calculated by using a dose-mortality curve at a 95 percent confidence level. The LC₅₀ was 31, 171ppm, and the lowest lethal concentration (LLC) was lower than 29, 528ppm and the lethal concentration at 100% (LC₁₀₀) was higher than 32, 905ppm.