Disinfectants are chemical agents designed to inactivate or destroy microorganisms on inert surfaces. Which bacteria not kill on any surfaces then physical or chemical process kills all types of life. Disinfectants are generally assumed to be limited to use on surfaces. Air disinfectants are chemical substances capable of disinfecting microorganisms inactive in the air. A perfect disinfectant would also offer complete and full microbiological sterilization, without harming humans and useful form of life. Those that are used indoors should never be mixed with other cleaning products as chemical reactions can occur. The choice of disinfectant to be used depends on the particular situation.
Alcohols are most effective when combined with distilled water to facilitate diffusion through the cell membrane; 100% alcohol typically denatures only external membrane proteins. A mixture of 70% ethanol or isopropanol diluted in water is effective against a wide the spectrum of bacteria, though higher concentrations are often needed to disinfect wet surfaces.
B) Oxidizing agents
1) Oxidizing agents are oxidizing the cell membrane of microorganisms. Acidic hypochlorite a solution made by electrolysis of sodium chloride into sodium hypochlorite and hypochlorous acid.
2) Hydrogen peroxide is used in hospitals to disinfect surfaces and it is used in solution alone or in combination with other chemicals as a high-level disinfectant. Hydrogen peroxide
Mostly used on the clean surface an instant.
3) Ozone is a gas used for disinfecting water, laundry, foods, air, and surfaces.
C) Acids and bases:
· Sodium hydroxide
· Potassium hydroxide
· Calcium hydroxide
· Magnesium hydroxide
· Sulfurous acid
· Sulfur dioxide
D) Home Disinfectants:
The best cost-effective home disinfectant is bleach. This is very effective in tuberculosis, hepatitis Band C, Fungi and antibiotic-resistant strains. The benefits of chlorine bleach include its inexpensive and fast-acting nature.