Cleaning Agents are chemicals that aid the removal of dirt from a surface. They produce cleaning effect.
CLASSES OF CLEANING AGENTS
- Solvents: They are substances which remove dirt by liquefying it and holding it in suspension e.g water, grease, etc.
- Detergents: These include detergents and soaps. They aid the removal of grease.
- Abrasive Cleaners: These clean by rubbing off dirt through friction, eg vim, sand paper.
- Polishes: They are applied on surfaces such as wood, glass, floor, etc. to improve their appearance, e.g. floor polish, wood polish, shoe polish, etc.
- Waxes: They are used to protect surfaces and improve appearance, e.g. cream wax, paste wax, etc.
- Bleaches: For removing stains, disinfecting drains and sinks, to whiten enamel sink, etc. Examples are jik, hypo, parazone, etc.
USES OF CLEANING AGENTS
- Bleaches can be used as disinfectants.
- They help to improve the appearance of a surface.
- Waxes are used to protect surfaces.
- They are the removal of dirt.
Evaluation Questions
- Define cleaning agents.
- Mention six classes of cleaning agents.
CLEANING AGENTS CAN BE HOMEMADE OR COMMERCIALLY PREPARED
- Homemade Cleaning Agents: These are usually made from local materials within our environment; they are cheap and effective.
- Paw-paw Leaves: Fresh paw-paw leave can be used for cleaning dirty galvanized pails and blackened aluminum pots.
- Finely Grounded Charcoal:It is used to clean smooth metal surface.
- Fine Sand: This can be used as an abrasive for cleaning pots.
- Edo Powder: This is a yellow coloured substance which is used for cleaning ornaments such as copper, gold and brass.
- Local Sand Paper Leaves (Asisa leaves): These leaves have rough sandy surface which is used as an abrasive for cleaning plain wood surface, blackened pots, etc.
- Home-made Vim or Scoring Powder: These are abrasives made from the combination of eggshell, broken china ware and detergents.
PROCEDURE OF MAKING HOME-MADE VIMS
- Grind the eggshells and pieces of china ware into very fine powder.
- Sieve the mixture to ensure a smooth powder.
- Mix the powder thoroughly with the detergent powder.
- Store in a dry container with a good lid.
HOME-MADE FURNITURE POLISH
Materials needed
- 8gm bar soap
- 7ml boiling water
- 7ml turpentine or kerosene
Procedure
- Gratethe wax and soap
- Place the grated mixture in an earth ware pot or an enamel pot
- Pour boiling water over the mixture
- Stand the pot in boiling water and allow the content to melt
- Beat the melted mixture thoroughly into a cream using a wooden spoon.
- Add turpentine gradually and keep beating until the polish is perfectly blended.
- Store in a good container and cover well.
General Evaluation Questions
- Define cleaning agents.
- Mention five uses of cleaning agents.
- Mention the materials for making homemade vim
- Explain the procedure of making homemade furniture polish.
- Mention the functions of the hair.
WEEKEND ASSIGNMENT (SECTION A)
- —– aids the removal of dirt from a surface (a) duster (b) mop (c) cleaning agent (d) bucket.
- Cleaning agents can either be —– or —– made (a) commercial, international (b) home, local
(c) commercial, home (d) all of the above.
- Vim, fine sand, pawpaw leaves and local sand paper are examples of (a) solvent (b) polish
(c) detergents (d) abrasives.
- China ware, egg shell and detergents are used for making (a) solvents (b) polish (c) home-made vim (d) bleaches.
- —– are used to protect surfaces and improve appearance(a) water (b) waxes (c) bleaches
(d) polishes.
SECTION B
- Explain the following: (i) bleaches (ii) polish (iii) home-made vim.
- Explain the procedure of making homemade furniture polish.
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