ফরমালিনের মিশ্রণ হলো-

Formaldehyde, in its basic form, is a gas. Most people think of formaldehyde as a liquid. The liquid is actually a mixture of formaldehyde gas and water. The most common concentration used is a 37% solution. That solution contains 37 grams of formaldehyde gas to 100 ml of solution. Formaldehyde solution will polymerize. To prevent polymerization of formaldehyde solution, about 10 – 15% of methyl alcohol is added. It is the addition of methyl alcohol that causes the substance to be called formalin as opposed to formaldehyde.