Foam fire extinguishing agent contains aluminum sulfate, aluminum sulfate is chemically soluble in water, insoluble in pure sulfuric acid (can only coexist), soluble in water with sulfuric acid, so the solubility of aluminum sulfate in water is the solubility of aluminum sulfate. At room temperature, analyze the molecular water of crystallization, namely aluminum sulfate 18H2O, which is produced by most industrial enterprises. It contains 51. 3% anhydrous aluminum sulfate, 100 degrees insoluble. Aluminum sulfate is not easily weathered and loses crystal water. relatively stable. It loses water when heated. At high temperatures, it decomposes into alumina and sulfur oxides. Next, let's take a look at the use of foam extinguishing agent manufacturers to introduce foam extinguishing agent.

Foam fire extinguishing agent manufacturers by adding fluorocarbon surfactants, hydrocarbon surfactants and other additives, can reduce the foam surface tension and interfacial tension, improve oil surface fluidity and dispersion.

Foam fire extinguishing agent manufacturers by adding organic acid metal salts, hydrophobic fluorocarbon surfactants and polysaccharide components, forming a hydrophobic film between the foam and the polar solvent, to protect the foam.

In order to ensure the effective preservation and use of foam extinguishing agent, foam extinguishing agent manufacturers also add stabilizers, thickeners, anti-combustion agents, cosolvents, buffers, metal corrosion inhibitors, antifreeze, antibacterial agents, chelating agents, etc. Although the above additives have been stability tested in the preparation of a single foam fire extinguishing agent, the cationic and anionic types tend to interact.

When using foam fire extinguishing agents, different types of foam fire extinguishing agents should be avoided, and fire extinguishers with the same polarity as fluorocarbon surfactants should be selected.

For modern people, we should always prevent and control fires, especially those caused by emergencies. Foam fire extinguishing agents can be said to be a better choice, so when we use them, where should we put them?

The commonly used foam fire extinguishing agent mainly needs aluminum sulfate and sodium bicarbonate solution as foaming agent, and adds fluorocarbon spraying surfactant and hydrocarbon surfactant as synergist. Low viscosity, good circulation, good self-sealing ability, high fire efficiency. The fire extinguishing efficiency is 2-3 times that of the same amount of YP foam extinguishing agent; automatic synthetic raw materials are selected, which are not easy to deteriorate and have a long storage period.

Foam extinguishing agent should be stored in a cool place. In a dry warehouse; internal and external agents should be stacked separately and not too high. The foam in the fire extinguisher can last for a year.

When using foam extinguishing agent, pay attention to the difference between foam extinguishing agent and other fire extinguishers. Pay attention to easy to carry, do not put in high temperature or some exposed places, otherwise it is easy to cause carbonic acid decomposition, so that the foam fire extinguishing agent loses the normal fire extinguishing performance. If it is winter, be careful not to freeze and dust, so as to use it normally.