What is a chemical sterilant?

Chemical sterilants are used in healthcare to chemically treat surgical instruments and medical supplies to ensure infectious pathogens are not transmitted to patients. Common chemical sterilants used in healthcare1 include: Ethylene oxide (EtO) Hydrogen peroxide gas plasma (HPGP) Vaporized hydrogen peroxide.

What is an example of chemical sterilization?

Chemical Sterilizing. Hydrogen peroxide: Hydrogen peroxide (H2O2) is the most widely used chemical agent for the decontamination of food packaging materials and contact surfaces before aseptic filling and subsequently dried with hot sterile air (Figure 2).

What is an example of sterilant?

One example of a common chemical sterilant is chlorine dioxide. Chlorine dioxide can be deployed as a gas that allows it to spread to hard-to-reach areas such as nooks and crevices, which harbor dangerous pathogens.

What do you mean by chemical sterilization?

Chemical Sterilization is the process of removal of microorganisms by the use of chemical bactericidal agents.

Is alcohol a chemical sterilant?

Alcohols are not recommended for sterilizing medical and surgical materials principally because they lack sporicidal action and they cannot penetrate protein-rich materials.

How is chemical sterilization done?

Typically, you would use liquid sterilization, which involves submerging equipment in a chemical fluid for enough time to kill all viable microorganisms and their spores, or gas sterilization, which involves exposing equipment to chemical gases in an enclosed heated or pressurized chamber.

What are the 3 general groups of chemical sterilization?

Three primary methods of medical sterilization occur from high temperature/pressure and chemical processes.

  • Plasma Gas Sterilizers. …
  • Autoclaves. …
  • Vaporized Hydrogen Peroxide Sterilizers.

Aug 6, 2015

Which chemical is a sterilizer?

Although Ethylene Oxide is the most commonly used chemical for sterilization of devices, other chemicals are also used, and novel methodologies are being developed.

Is cidex a chemical sterilant?

CIDEX® OPA Solution is a high-level disinfectant for reprocessing reusable heat-sensitive semi-critical medical devices such as endoscopic, respiratory therapy, and anesthesia equipment. This product is not a sterilant.

What is a sterilizing liquid?

“Sterilization,” as defined in FDA’s Liquid Chemical Sterilants/High Level Disinfectants guidance document, is a validated process used to render a product free of all forms of viable microorganisms. In many cases, thermal methods, such as steam, are used to achieve sterilization.

Which chemical is used for surface sterilization?

Sodium hypochlorite

Sodium hypochlorite: You can also call it bleach. It is one of the most commonly used agents for surface sterilization of explants. Bleach is diluted up to 10-20% for sterilization in tissue culture processes. This gives you a solution with the final concentration of 0.5-1.0% of bleach.

What chemical is used to sterilize surgical instruments?

Ethylene oxide gas

Ethylene oxide gas has been used since the 1950s for heat- and moisture-sensitive medical devices. Within the past 15 years, a number of new, low-temperature sterilization systems (e.g., hydrogen peroxide gas plasma, peracetic acid immersion, ozone) have been developed and are being used to sterilize medical devices.

What are the physical and chemical methods of sterilization?

Liquid- chemical method of sterilization involves the application of liquid to destroy the microbes permanently. – Alcohols– usually, 70% of alcohols are used as a chemical to kill bacteria. Methyl alcohol, isopropyl alcohol, and ethyl alcohol are some important chemicals used in this method.

What is chemical vapor sterilization?

Unsaturated chemical-vapor sterilization involves heating a chemical solution, primarily alcohol with 0.23% formaldehyde, in a closed pressurized chamber. This method causes less corrosion of carbon steel instruments (e.g., dental burs) than steam sterilization because less water is present during the cycle.

What chemicals can be used in chemical vapor sterilizers?

Chemicals Used for Sterilization or Disinfection

  • Ethylene Oxide.
  • Ozone.
  • Bleach.
  • Glutaraldehyde and Formaldehyde.
  • Phthalaldehyde.
  • Hydrogen Peroxide.
  • Peracetic Acid.
  • Silver.

What is a major advantage of chemical vapor sterilization?

What is a major advantage of chemical vapor sterilization? it does not rust, dull, or corrode dry metal instruments.

What is necessary for chemical vapor sterilization?


Chemical sterilizers use either Ethylene Oxide (EtO), or a combination of alcohol, formaldehyde, ketone, acetone, and water to create a chemical vapor for sterilizing. Like steam sterilizers, they also rely on a combination of high temperature, high pressure, and time.

What are the 4 methods of sterilization?

Moist Heat Sterilization 2. Dry Heat Sterilization 3. Gas Sterilization and Others. Moist Heat Sterilization: Moderate pressure is utilized in steam sterilization.

Why chemical agents are usually unreliable for sterilization?

Why are chemical agents generally unreliable for sterilization? Chemical agents do not destroy spores and do not kill all viruses.

What is the most commonly used brand of liquid Sterilisation?

The most popular sodium hypochlorite products in the US are Clorox Germicidal Wipes and Dispatch Hospital Cleaner Disinfectant with Bleach (The Clorox Company), and Sterilox High Level Disinfectant System (Sterilox Technologies).

What is liquid sterilant?

Liquid chemical sterilization (LCS) is used to liquid chemically sterilize heat-sensitive, immersible, reusable medical devices. When a device is liquid chemically sterilized, it is completely immersed in an active sterilant solution for a prescribed period of time at a controlled temperature and concentration.

What are the different types of chemical used in cleaning and sanitizing?

Common Chemicals Used for Cleaning & Decontamination Guideline

  • Hypochlorite (Bleach) …
  • Alcohols. …
  • Chlorine Dioxide. …
  • Hydrogen Peroxide & Peracetic Acid. …
  • Iodophor Disinfectant (Wescodyne) …
  • Quaternary Ammonium Compounds (Quats) …
  • References.