Polyhexamethylene biguanide
Synonyms
Polyaminopropyl biguanide;
Poly(iminocarbonimidoyliminocarbonimidoylimino-1,6-hexanediyl);
Polihexanide;
PHMB;
Category
Polymer Surfactant
> Polyguanidines
Chemical Numbering System
CASRN: 28757-47-3
EINECS: N/A
Molecular Formula & Molecular Weight
Molecular Formula: N/A
Molecular Weight: N/A
Structure
Properties
Appearance (1), solid; (2), liquid.
Solubility soluble in water.
Stability stable.
Risk Solid form: flammable material; irritation, irritation to skin, eye, respiratory system. Harmful products of combustion are CO, CO2 and so on. Contact with strong oxidants, can cause to burn.
GHS (Rev.10) label: 
Ecology may be hazardous to environment. Water body should be given special attention.
Biodegradability biodegradable.
Characteristics excellent antimicrobial, antibacterial, preservative, antistatic, anticorrosive abilities.
Synthesis
Quality Standards & Test Methods
1, Physical and chemical indexes
|
Item |
Physical and chemical indexes |
|
Solid / liquid |
|
|
Actives, %, ≥ |
95.0 / 20.0 |
Test Methods
(1), Actives
GB/T 13173 Surface active agents -- Detergents -- Testing methods
2, Hazardous substances indexes
|
Item |
Hazardous substances indexes |
|
Solid / liquid |
|
|
Heavy metals (as Pb), mg/Kg, ≤ |
20 |
|
As, mg/Kg, ≤ |
3 |
Test Methods
(1), Heavy metals (as Pb)
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30799 The test method of food detergents -- Determination of heavy metals
(2), As
Safety and Technical Standards for Cosmetics (2015 Edition)
GB/T 30797 The test method of food detergents -- Determination of total arsenic
3, Further explanation
(a), On physical and chemical indexes: firstly, shall be indicated carbon atom distribution; secondly, shall be indicated average molecular weight.
(b), Used in cosmetics, should be test for harmful substances or furtherly test for microorganisms, according to local regulations and standards.
Major Uses
1, Typical applications
Use as antimicrobial agent, preservative. For example, be used in personal care products, water treatment, textile, household cleansing products, agriculture, aquaculture.
Use as antistatic agent.
Use as anticorrosive agent.
2, Personal care products
Preservative in personal care products.
Further information:
(1), In accordance with Safety and Technical Standards for Cosmetics (2015 Edition) of China, be included in preservatives allowed.
Maximum concentration is 0.3%.
(2), In accordance with EU regulations (EC) No 1223/2009, directive 2007/17/EC, be included in Annex V/28.
Maximum concentration is 0.1%.
Not to be used in applications that may lead to exposure of the end-user's lungs by inhalation.
Manufacturers