What is Formalin?
Formalin is a clear aqueous solution of formaldehyde and methanol used as a preservative. This is typically 37% formaldehyde by weight (40% by volume) and 6 to 13% methanol by volume in water.
Formalin characteristics
Formaldehyde is a colorless gas that is flammable at room temperature and has a pungent odor that causes suffocation. It reacts readily with many substances and polymerizes easily, making it one of the most important industrial chemicals in the world. Formaldehyde is moderately toxic through skin contact and inhalation. Exposure to formaldehyde gas can cause eye and respiratory irritation. Formaldehyde is often described as a gas, but it also exists in a form dissolved in water or other solvents. It is a natural substance used in many applications. Formaldehyde is a reactive molecule and the first molecule in the aliphatic aldehyde chain. It has most of the chemical properties of other aldehydes but is more reactive.
Formalin applications
Formalin, a solution of formaldehyde and methanol in water, has many uses in many different industries. Here are some of the most common uses and applications of formalin
Preservative
Formalin is commonly used as a preservative in medical laboratories, funeral homes, and in some food products.
Sterilizer
Formalin is used as a disinfectant and disinfectant in factories and other industrial environments.
Adhesive
Formaldehyde-based resins are used as adhesives in the manufacture of wood products such as plywood, chipboard and fiberboard, as well as in the manufacture of furniture, insulation systems and ground coverings.
Automotive industry
Formaldehyde-based technologies are used in the automotive industry to produce molded parts inside and under the hood of vehicles, as well as in the manufacture of exterior primers, clear paints, tire sealants, brake pads, and other fuel system parts.
Personal care products
Formaldehyde-releasing ingredients are used as preservatives in personal care products to kill microorganisms and prevent the growth of bacteria and other pathogens, thereby extending their shelf life. product uses.
Chemical intermediates
Formaldehyde is used as a chemical intermediate to produce other chemicals, such as methylene diphenyl diisocyanate (MDI), which is used in the production of polyurethane foam.
