Storage Conditions

Laboratoire PAREVA – leading manufacturer of polyhexamethylene biguanide hydrochloride phmb

Storage Conditions

PHMB is a stable compound between +6°C and +75°C (42.8 F to 167 F).

PHMB must be stored at a temperature above 6°C (>42 F). If PHMB is stored under 6°C (42F), a white deposit may appear or accentuate turbidity. This turbidity may be dissolved by storing original containers in a warm place (above 35°C) and, ideally by stirring to homogenise the solution.

We strongly advise our customers to choose our special grade PHMB P20 SDG (Special Disinfection Grade), a pH 3-4 grade, if they are unable to guarantee correct storage temperature. This grade is designed to limit the appearance of white deposits and turbidity (even if stored in temperatures below 6°C).

There is no reaction to exposure to direct sunlight except for our coloured grades (blue dye will fade away).


There is currently no spontaneous reaction or incompatibility known for PHMB.

Explosive properties

To date, there is no known explosive properties for PHMB 20%. This information is based on its chemical structure, high-water content, and low-decomposition energy (80 J/g).



  • Free Halogens (oxidising form): Cl2, Br2, I2 Calcium Hypochlorite
  • Sodium Hypochlorite
  • Lithium Hypochlorite
  • Metal ions : Cu2+, Fe2+, Fe3+, Ni2+, Mn2+, Hg2+
  • Anionics (surfactants, soaps)
  • Some phosphates salts (hexameta- or tripoly-phosphates) and silicates salts
  • Some complexing agents (depending on their concentration), etc.


  • Copper and its alloys (brass, bronze)
  • Iron-based metals (black steel, cast iron)
  • Some rubbers…



  • Usually: non-ionic or cationic. It is highly recommended to verify your formulation during lab trials.


  • Stainless Steels 
  • Polymers: PE, PP, PVC, Polyester, PTFE, polycarbonate, PVDF, ABS…
  • In general, any acids and bases or resistant polymers
  • Carbon
  • Ceramics…

High Quality

available team

efficient and reactive logistics

high storage capacity

competitive prices

Quality certification

Laboratoire PAREVA is an ISO 9001/2015 accredited company. Our Quality Management system ensures that customers receive consistent and high-quality products and services.

For additional information, please contact Xavier at or Daniel at