Table of Disinfectants used on the Farm

February 8, 2022

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Table 1: Information About Common Disinfectants
Chemical compound	Gram + Bacteria	Gran – Bacteria	TB-like Bacteria	Fungi	Virus	Best pH range for activity	Activity when organic matter present	Common uses **
* SA-some activity **E-equipment; P-premises; F-footbaths; CS-clean surfaces(Adapted from Purdue University Extension Bulletin PIH80)
Chlorhexidene	SA*	SA	SA	SA	Most	Wide range	Good	E/P/F
Formaldehyde and aldehydes	++	++	++	++	++	Wide range	Good	E/P/F
Chlorine Chloramines	++	++	SA	++	SA	Acid	Very poor	CS/E
Iodophors	++	++	SA	++	SA	Acid	Fair to poor	CS/E
Sodium hydroxide	++	++	SA	++	++	Alkaline	Good	P
Quaternary ammoniums	++	+	No	SA	SA	Alkaline	Fair	CS/E
Phenols	++	++	+	SA	SA	Acid	+Good	E/P/F