6. Water is known as universal solvent.
It is prime agent in cleaning.
There are two types of water- Soft water &
Hard water.
Soft water is widely approached for providing
best cleaning results.
Hard water is not always good for cleaning as
it contains chemicals.
7. Detergents are pure soap
or organic chemicals.
Soapy det.- They are
made of animal or
vegetable fat. Usage-
washing skin or clothes
Synthetic det.- Made
from organic chemicals
derived from
petroleum.
8. Acids used as cleaning agents may vary from mild
acid e.g acetic acid or strong concentrated
hydrochloric acid.
• Citric acid and acetic used for metal cleaning.
• Oxalic acid for removing stubborn water stains
from hard floors.
9. These cleaning agents are used
extensively for dry cleaning and for stain
removal.
They all have strong fumes so should
used properly.
• Methylated spirits, turpentine, white
spirit, acetone etc.
10. Disinfectants should only be used in the
areas where harmful germs are likely to
exist. e.g Phenol, Halogens
Deodorants are agents for disguising bad
smells. They are widely used in guest
rooms, bathrooms, and in public areas.
11. Laundry aids which are used as cleaning
materials contain stiffening agents and
fabric conditioners.
Polishes are applied to a surface to give it
a shiny look and also prevent from finger
prints and scratches e.g- Metal polishes,
Furniture polishes, Floor polishes.
12. It is applied to a floor to form a semi
permanent protective barrier which
will prevent the entry of dirt, liquid,
grease stains.
13. Abrasives are substance or chemicals that is
used for cleaning stubborn dust or rust
from hard surfaces by rubbing actions.
Fine abrasives- Jeweller’s rouge
Hard abrasives- Sand paper, fine ash etc.
14. Ensure that the storage are sturdy.
Heavier must be kept on the bottom
shelf.
Label all containers.
Ensure that the lids are tightly
secured.