Open main menu

Cleaning agents are substances (usually liquids, powders, sprays, or granules) used to remove dirt, including dust, stains, bad smells, and clutter on surfaces. Purposes of cleaning agents include health, beauty, removing offensive odor, and avoiding the spread of dirt and contaminants to oneself and others. Some cleaning agents can kill bacteria (e.g. door handle bacteria, as well as bacteria on worktops and other metallic surfaces) and clean at the same time. Others, called degreasers, contain organic solvents to help dissolve oils and fats.[1]

AcidicEdit

Acidic cleaning agents are mainly used for removal of inorganic deposits like scaling. The active ingredients are normally strong mineral acids and chelants. Often, surfactants and corrosion inhibitors are added to the acid.

Hydrochloric acid is a common mineral acid typically used for concrete. Vinegar can also be used to clean hard surfaces and remove calcium deposits that also helps to maintain our environment bacteria free. Sulphuric acid is used in acidic drain cleaners to unblock clogged pipes by dissolving greases, proteins, and even carbohydrate-containing substances such as toilet tissue.

AlkalineEdit

Alkaline cleaning agents contain strong bases like sodium hydroxide or potassium hydroxide. Bleach (pH 12) and ammonia (pH 11) are common alkaline cleaning agents. Often, dispersants, to prevent redeposition of dissolved dirt, and chelants, to attack rust, are added to the alkaline agent.

Alkaline cleaners can dissolve fats (including grease), oils, and protein-based substances.

NeutralEdit

Neutral washing agents are pH-neutral and based on non-ionic surfactants that disperse different types

DegreasersEdit

Cleaning agents specially made for removal of grease are called degreasers. These may be solvent-based or solvent-containing and metamorphic.

TypesEdit

Oven cleanersEdit

Traditional oven cleaners contain sodium hydroxide (lye), solvents, and other ingredients,[2][3][4] and work best when used in a slightly-warm (not hot) oven. If used in a self-cleaning oven, the lye will cause permanent damage to the oven.

New-style oven cleaners are based on ingredients other than lye. These products must be used in a cold oven. Most new-style oven cleaners can be used in self-cleaning ovens.

Oven cleaners are some of the most toxic household cleaning products available on the market.[5] Correct use of an oven cleaner may be reasonably safe, but incorrect use can cause poisoning.[citation needed]

One popular oven cleaner brand in the US is "Easy-Off", sold by Reckitt Benckiser. Popular choices in the UK include "Zep Oven Brite" and "Mr Muscle Oven Cleaner".

All-purpose cleanersEdit

All-purpose cleansers contain mixtures of anionic and nonionic surfactants, polymeric phosphates or other sequestering agents, solvents, hydrotropic substances, polymeric compounds, corrosion inhibitors, skin-protective agents, and sometimes perfumes and colorants.[6]

Some cleaners contain water-soluble organic solvents like glycol ethers and fatty alcohols, which ease the removal of oil, fat and paint. Disinfectant additives include quaternary ammonium compounds, phenol derivatives, terpene alcohols (pine oil), aldehydes, and aldehyde-amine condensation products.

All-purpose cleansers are effective with most common kinds of dirt. Their dilute solutions are neutral or weakly alkaline, and are safe for use on most surfaces.

Dishwashing agentsEdit

Manual dishwashing detergentEdit

Automatic dishwashing detergents (ADDs)Edit

Laundry detergentsEdit

Floor cleanersEdit

Carpet cleanersEdit

Toilet cleaners / hygiene / deodorant productsEdit

Drain cleanersEdit

Metal cleanersEdit

Metal cleaners are used for cleaning stainless steel sinks, faucets, metal trim, silverware, etc. These products contain abrasives (e.g., siliceous chalk, diatomaceous earth, alumina) with a particle size < 20 μm. Fatty alcohol or alkylphenol polyglycol ethers with 7-12 ethylene oxide (EO) units are used as surfactants.[6]

Stainless steel, nickel, and chromium cleaners contain lactic, citric, or phosphoric acid. A solvent (mineral spirits) may be added.

Nonferrous metal cleaners contain ammonia, ammonium soaps (ammonium oleate, stearate) and chelating agents (ammonium citrate, oxalate).

Silverware can be freed of silver sulfide tarnish with thiourea, and either hydrochloric or sulfuric acid.

Environmental impactsEdit

Common cleaning agentsEdit

See alsoEdit

ReferencesEdit

  1. ^ Wisniewski, Karen (2007). "All-Purpose Cleaners and their Formulation". In Tsoler, Uri (ed.). Handbook of detergents, Part 2. Surfactant science series. CRC Press. ISBN 978-1-57444-757-6.
  2. ^ Justo, Patrick Di (19 May 2008). "What's Inside: Foamalicious, Vaporlicious Easy-Off Oven Cleaner". Wired. Condé Nast, Inc. ISSN 1059-1028.
  3. ^ Howard, Wayne. "Easy-Off Ingredients". Hunker website. Leaf Group, Ltd.
  4. ^ "Easy-Off Heavy Duty Oven Cleaner - Fresh Scent » Ingredients". Reckitt Benckiser LLC.
  5. ^ Kelly, John (9 June 2012). "How Self-cleaning Ovens Work". HowStuffWorks website. InfoSpace Holdings LLC.
  6. ^ a b Christian Nitsch; Hans-Joachim Heitland; Horst Marsen; Hans-Joachim Schlüssler (2007), "Cleansing Agents", Ullmann's Encyclopedia of Industrial Chemistry (7th ed.), Wiley

External linksEdit