Properties of Phenolic Disinfectants
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Transcript of Properties of Phenolic Disinfectants
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Properties of Phenolic Disinfectants
FEATURES BENEFITS
Odour
Phenolic odour. May absorb into
some foods. Usually scented to
mask odour.
Broad spectrum Kill bacteria, molds, viruses
Biodegradable Poorly degraded in environment.
Monitored in effluents
Not volatile Leaves residual bacteriostatic film.
Desirable in hatchery and field
Stable during storage Yes. Good shelf life up to 3 years.
Freeze/thaw stability Yes
Fast killing action Yes
Hard water tolerance Good hard water tolerance.
Organic soil
tolerance
Good
pH range Optimum pH range 10-11
Corrosivity Generally safe
Non-toxic at use Use solutions generally safe
Irritation potential Other than some mild skin
irritation, use solutions are not
injurious to man or animals.
Not flammable Flash points vary with formulation
Not oxidizers Do not bleach and generally do not
stain
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Properties of Cresylic/Phenolic Combination
Property
Benefits
Odour Strong phenolic odour
High order
disinfectant
Takes low ppm for effect
Broad spectrum Kills bacteria, fungi, many viruses
Volatility Phenolics not volatile, cresylics volatile.
Residual germicidal action. Odours may
linger several days. Useful for premise
disinfection but not hatchery or other
indoor areas.
Organic soil
tolerance
Very good
Storage stability Good
Kill time Fast
Corrosivity Safe for most metals and premise
surfaces. May soften rubber seals and
some plastic materials.
Hard water
tolerance
Excellent
Toxicity Concentrate strong irritant. Use
solutions mild skin and eye irritants.
Recommended
use areas
Farm premise clean up. Not used in
hatchery or in egg rooms.
Biodegradable Cresylics degrade. Phenolics, poor.
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Properties of Saponified Cresylic Disinfectants
Property
Benefits
Odour Strong phenolic odour
Low order
disinfectant
Takes high ppm for effect
Not broad
spectrum
Kills gram (-ve), not gram (+ve)
bacteria
Volatility Slowly volatile. Odours linger long
time. Not acceptable for indoor or
frequent use.
Organic soil
tolerance
Good
Storage stability Good
Kill time Fast, where effective
Corrosivity
Cresylics are saponified. Safe for most
metals and premise surfaces. May
soften rubber seals and some plastic
materials.
Hard water
tolerance
Good
Toxicity Concentrate strong irritant. Use
solutions mild skin and eye irritants.
Biodegradable Yes