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Features of Polyhexamethylene Biguanide (PHMB)

by Max

The new water-soluble, environment-friendly cationic polymer called polyhexamethylene biguanide is a miracle compound. Its use in everyday life is wow! PHMB, with unique features, has stunned the manufacturers, and it is widely used in several ways.

The best part about this antimicrobial agent is the resistance the bacteria cannot develop against it. This blog post has brought you the impeccable features of PHMB taking this compound to another level.

Polyhexamethylene Biguanide Hydrochloride

Polyhexamethylene Biguanide Hydrochloride is a broad-spectrum biocide used extensively for its antimicrobial properties.

This polymerized, water-soluble biguanide is environment-friendly.

The chemical has unlimited uses in different industries. It is a leading component of care solutions for contact lenses and cosmetics. Medical, pharmaceutical, sterilization, textile, animal husbandry, aquaculture, and agriculture benefit significantly from this wonderful compound.

It can inhibit the growth of many bacteria like Candida Albicans, Escherichia coli, and many more.

Features of Polyhexamethylene Biguanide

The remarkable features of PHMB are responsible for making it a prominent biocide and a modern polymer having complete command over what it does.

Physical Features

PHMB is colorless or light yellow odorless and tasteless liquid. It is entirely water-soluble. The pH of its 1% solution is 4.0.

Broad Spectrum

PHMB is a potent microbial agent. Being a broad-spectrum biocide, it has the power to inhibit the growth of several pathogens. These bacteria include staphylococcus aureus, candida Albicans, Aeromonas hydrophillus, escherichia coli, salmonella, gonococcus, listeria, dysentery, brucella, vibrio eelis, and saprophytic, iron and sulfate-reducing bacteria besides many others. Manufacturers utilize its extraordinary bactericidal properties in making disinfectants. PHMB is used for the sanitization and maintenance of swimming pools because it is an excellent disinfectant. The pharmaceutical industry utilizes this feature to formulate drugs active against different infections, e.g., infections in the eyes.

Brilliant Solubility

This water-soluble polymer has a solubility worth a million. It is because of this extraordinary feature PHMB makes the best water-soluble disinfectant. The merging of solubility and the broad spectrum side of PHMB plays a role in proving it as one effective disinfectant without letting the bacteria develop resistance against the chemical.


PHMB is declared non-corrosive after years of study. It is easily washable, non-corrosive, and therefore suitable for human skin. Apart from skin, it is non-corrosive to metals too. Copper and alloys like carbon steel and stainless steel are safe from corrosion when exposed to PHMB.

Outstanding Stability

One of the reasons for its popularity and success as a brilliant biocide is its stability, even at elevated temperatures. It remains stable even after being heated at 280degree centigrade for 15 minutes.

Final words

If you hear buzz about water-soluble polymers with excellent features besides being one of the best antimicrobials, it’s undoubtedly PHMB. This broad-spectrum antimicrobial and antifungal is a superb biocide active against many bacteria. It is non-corrosive and highly stable at temperatures as high as 280-degree centigrade. Not only human skin but metals and alloys are safe against corrosion by this wonderful chemical. The incredible features distinguish PHMB from the rest of its competitors.

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