Polyhexamethylene biguanide hydrochloride PHMB
Polyhexamethylene biguanide hydrochloride (PHMB, CAS 32289-58-0)
Polyhexamethylene biguanide hydrochloride is an environmentally friendly multi-purpose new cationic polymer, and is a new generation of broad-spectrum bactericidal disinfectant.
Easily soluble in water, colorless and odorless in aqueous solution, broad-spectrum high-efficiency, low toxicity, good stability, nonflammable and non-explosive. And it is basically non-corrosive to stainless steel, copper, carbon steel and other metals, wood, and plastics, Due to the special bactericidal mechanism of polyhexamethylene biguanide, it has broad-spectrum antibacterial effect on various bacteria.
Product index
| Project | PHMB liquid | PHMB solid |
| Exterior | Colorless or light yellow liquid | White powder |
| Active ingredient % | 20% | 99% |
| Water soluble | Completely dissolved | Completely dissolved |
| Odor | Tasteless | Weak amine odor |
| Main ingredient | PHMB | PHMB |
| PH(25°c ) | 4-6 | 5-9 |
| Absorbance l% 237nm | >400 | — |
| Absorbance 237nm /222nm | 1.2-1.6 | — |
Polyhexamethylene biguanide itself is a high-molecular polymer, which is not easily absorbed by tissues, has no corrosive effect, has good stability, and is easy to rinse. In vitro studies have shown that it is non-toxic to human cells; the results of in vivo irritation tests on the skin of rabbits and human hands have shown that it is not irritating to animal and human skin.
Product features
1.Bactericidal broad-spectrum: no special smell, easily soluble in water; colorless transparent aqueous solution, odorless, weak corrosion to copper, stainless steel, carbon steel and other metals; broad-spectrum bactericidal, good stability;
2.Good stability: After being heated at 280°C for 15 minutes , its antibacterial activity is still very good;
3.No corrosion to metal: It has excellent bactericidal effect, low toxicity, and no corrosion to metal. It is widely used in cosmetics, daily chemicals, plastics, textiles, water treatment and other fields.
Germicidal
The guanidine group in polyhexamethylene biguanide has high activity, and the polymer becomes positively charged. Since all kinds of bacteria and viruses are generally negatively charged, polyhexamethylene biguanide is easily adsorbed, which makes bacteria and viruses unable to divide and reproduce, and loses their activity; Collapse the cell membrane structure, form transmembrane pores, rupture the cell membrane, destroy the energy metabolism of microorganisms, and inactivate bacteria and viruses; The polymer forms a film that closes the microbe's breathing passages, allowing it to suffocate.
Application Range
It is suitable for sterilization and disinfection of contact lens care solutions, cosmetics, medicine, skin, mucous membranes, fruits and vegetables, air, drinking water, swimming pools, general object surfaces, papermaking, toilet paper, women's sanitary napkins, clothing and other industries.
If you have any interest, pls don't hesitate to contact us.
Thank you and appreciate your enquiry.
