What is Silver Stabilised Hydrogen Peroxide?

Silver stabilised hydrogen peroxide has become an increasingly important tool in modern hygiene and water treatment, offering a powerful yet environmentally responsible alternative to more traditional disinfectants. By combining the natural antimicrobial qualities of silver with the oxidising strength of hydrogen peroxide, this versatile biocide delivers exceptional performance across a wide range of applications. From disinfecting surfaces and equipment to treating water, wastewater and effluent streams, its ability to control bacteria, viruses, moulds and fungi makes it highly effective in both commercial and industrial settings. At the same time, its eco-friendly nature, breaking down safely into water and oxygen, means it can achieve outstanding results without leaving behind harmful residues.

In this article our water treatment specialists take a closer look at silver stabilised hydrogen peroxide, explaining how the addition of ionic silver enhances the stability and biocidal activity of hydrogen peroxide to create a disinfectant nearly twenty times more effective than peroxide alone. We explore how it works at a chemical level, review the main benefits of its use, and highlight the industries where it is now most commonly applied. The guide also considers the environmental advantages of this approach compared to conventional disinfectants, and why silver has re-emerged as an important antimicrobial agent in response to growing concerns over resistance to traditional methods.

What is silver stabilised hydrogen peroxide?

Silver stabilised hydrogen peroxide is a highly effective, broad-spectrum disinfectant that combines the oxidising power of hydrogen peroxide with the natural antimicrobial properties of silver to deliver a stronger, longer lasting biocidal effect. The addition of small amounts of ionic silver helps to stabilise the hydrogen peroxide, preventing it from breaking down too quickly, while at the same time significantly boosting its performance against bacteria, viruses, fungi and moulds. This dual action makes it particularly versatile, with applications ranging from the disinfection of surfaces and equipment to the treatment of water systems, wastewater and effluent. Importantly, once it has done its job, it simply breaks down into harmless water and oxygen, making it both biodegradable and eco-friendly, and an increasingly popular choice in industries where effective hygiene control and environmental responsibility are key.

How does silver stabilised hydrogen peroxide work?

Silver has naturally antimicrobial properties, and combines well with hydrogen peroxide to both enhance stability and boost performance to clean effectively and prevent microbes from reproducing. Chemistry allows the ions in the silver peroxide to react with the cell wall of any bacteria to destroy it entirely, in a range of situations. It’s now a commonly used chemical in a wide range of industries from pharmaceuticals, healthcare, hospitality and leisure, to the food and drink sectors. Scientific studies show that adding a very small amount of silver into a base hydrogen peroxide solution can create a biocide which is almost 20 times more powerful than hydrogen peroxide alone.

Why use silver as a disinfectant?

Silver has become a popular additive in recent times, and is being found in increasingly more products. Unlike other metals, tiny particles of silver have been shown to be very effective at killing off micro-organisms yet at the same time are not dangerous for mammals, including humans. These nano-silver particles are tiny, as small as one billionth of a metre. This small size lets the particles get into spaces which other larger particles can’t reach. The silver helps to penetrate cell walls of bacteria, causing changes to the DNA of the cells which stops them reproducing, then kills them off.

What are the benefits of using a disinfectant containing hydrogen peroxide and silver?

There are several benefits in using a silver hydrogen peroxide disinfectant over other types of disinfectant, in a wide range of industry applications. These advantages include:

• It is highly potent against an extensive range of organisms, including biofilm.
• It is eco-friendly, once used it breaks down to oxygen and water.
• It has a wide range of applications including fogging, hard surface cleaning, and the treatment of water, wastewater and effluent streams.
• It works effectively in cold water – it doesn’t need any heat to be activated.
• It is highly effective against a wide range of micro-organisms.
• It works as a bactericide, fungicide and also against viruses – this means that it can replace several chemicals with one product which does the same job.
• It is a colourless liquid with no smell or taint.
• It is non carcinogenic, unlike many other cleaning chemicals.
• It can be used for cleaning as well as for disinfecting.
• Doesn’t foam.
• No harmful fumes unlike other commonly used chemicals.
• Works effectively across a range of pH environments.
• Destroys biofilm, tricky to remove deposits which can start to build-up on many different water systems.
• At in-use concentrations it is easy to store and transport as it is non-flammable and stable over a range of temperatures.
• Works after a short contact time.

What is hydrogen peroxide?

Hydrogen peroxide is a compound made up from two molecules of hydrogen and two of oxygen – chemical formula H₂0₂ – is a colourless liquid which was first discovered in 1818 by a French chemist Louis Jacques Thénard who was a professor at the Collège de France.

Hydrogen peroxide is most commonly used industrially for bleaching paper and cotton or for making other chemicals, and it forms the base of the products we use to colour our hair. As the basic components of hydrogen peroxide are water and oxygen, it’s known as the world’s safest sanitiser.

Hydrogen peroxide breaks down into water and oxygen, so has no environmental impact once it is consumed in use. This makes it ideal for use in the food and drink industry or in water treatment, for cleaning out pipes and other components used to process food products.

Why combine silver with hydrogen peroxide?

Silver is also a chemical element, perhaps best known as a precious metal. Most of the silver we produce is as a by-product of the refining of other metals such as copper, gold or lead. Silver’s antimicrobial properties have been known since ancient times.

In traditional Mexican societies, water and milk was kept in silver containers to keep it fresh, and inhibit bacterial growth in hot, tropical temperatures. More recently silver was used to treat soldiers’ wounds during World War 1. After the discovery of antibiotics, the use of silver to beat bacteria fell out of fashion. However, given the increasing concern over antibiotic resistance and “superbugs”, researchers are again exploring the properties of silver as an effective antibacterial agent.

When silver hydrogen peroxide is used the ionic silver components are incorporated into the cells of the bacteria which it kills, and bacteria which are killed by the silver release the particles of silver back into their environment, where it can then go on to kill more bacteria. In many water systems, copper can also be combined with silver to create an even more effective disinfectant.

Silver stabilised hydrogen peroxide is now firmly established as one of the most effective and sustainable disinfectants available, offering high levels of protection against a wide spectrum of microorganisms while leaving no harmful residues behind. Its unique combination of stability, versatility and eco-friendly credentials makes it a valuable solution for industries where hygiene and safety are paramount, from healthcare and food production to leisure, hospitality and water treatment.

Contact us today to learn how our environmental hygiene solutions can help improve your processes.

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