Fire Extinguishing Agent

Development of method for cost effective and quality upgradation of phosphate based dry fire extinguishing agent


Dry Chemical fire extinguishers extinguish the fire primarily by interrupting the chemical reaction of the fire triangle. The multipurpose dry powder works by creating a barrier between the oxygen element and the fuel element on Class A, B & C fires. It is monoammonium phosphate based containing chemical additives, and produced by an exclusive chemical process. The resultant agent is free-flowing, water repellant, non-abrasive, and when used as a fire suppressing agent will produce no toxic effects. In this project, we will produce an advanced multipurpose fire extinguishing agent by formulating mono-ammonium phosphate, ammonium sulphate, magnesium aluminum silicate, potassium aluminum silicate, calcium carbonate etc in different proportion. This project will enhance the research scopes and facilities of chemical research division.


  • To develop a process for the production of high efficiency and cost effective advanced and modified form of phosphate based fire extinguishing agent from locally available chemicals for multipurpose fire extinguisher.
  • Successful completion and industrialization of this project generate employment for unemployed men & women.


  • Raw material has been collected and purified them well.
  • Optimization of different parameters in target to modify or upgrade the said product Progress is 50%.


Principal Investigator:

Dr. Pizush Kanti Biswas,

Principle Scientific Officer (PSO),

Chemical Research Division,

BCSIR Laboratories, Dhaka.     

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