Appearance (Colour)
Yellow to beige
Appearance (Form)
Free flowing,homogeneous powder
Solubility
2.0% aq. solution is completely soluble,clear
pH (25°C)
2.0 %aq. solution
6.0 - 8.0
Stability (After autoclaving)
Yellow ,clear solution ,may have very slight precipitate.
Loss on drying
Max 6.0%
Total Aerobic microbial count
<= 10,000 cfu/gm
Substance insoluble in 84% ethanol
<= 0.1%
Bile salt as Cholic acid
Min 45.0%
Sulphated Ash
Max .22.0%
Applications
It is used in bacteriological culture media as an inhibitory agent for gram positive bacteria, making it selective for isolation and identification of pathogens.
