Formaldehyde (/ fɔːrˈmældɪhaɪd / ⓘ for-MAL-di-hide, US also / fər -/ ⓘ fər-) (systematic name methanal) is an organic compound with the chemical formula CH2O and structure H−CHO, more precisely H2C=O. The compound is a pungent, colourless gas that polymerises spontaneously into paraformaldehyde.

2024年5月21日 · Formalin is a colorless liquid with a strong, irritating smell, due to the off gassing of formaldehyde. It is this compound that is mainly responsible for the solution’s chemical properties. The solution is neutral in terms of acidity and alkalinity, but it can be oxidized to produce formic acid.

Formaldehyde solution [Note: Formalin is an aqueous solution that is 37% formaldehyde by weight; inhibited solutions usually contain 6-12% methyl alcohol. Also see specific listings for Formaldehyde and Methyl alcohol.]

Formalin, also known as formaldehyde solution, is a versatile chemical compound that is widely used in various industries. From healthcare and research to manufacturing and disinfection, formalin plays a crucial role in different applications.

2020年12月29日 · Nearly colorless gas with a pungent, suffocating odor. See FORMALDEHYDE. Do NOT use passive monitors to sample for formalin. * All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details. See 29 CFR 1910.1048, …

the term “formalin” is used to describe a saturated solution of formaldehyde dissolved in water, typically with another agent, most commonly methanol, added to stabilize the solution. Formalin is typically 37% formaldehyde by weight (40% by volume) and 6-13% methanol by volume in water. The formaldehyde component provides the disin -

2016年4月4日 · Both formalin and formaldehyde have the same chemical formula, which is represented by CH 2 O. But there are some differences in their physical state and chemical activities. Basically, formaldehyde is a colorless, water-soluble, flammable gas at room temperature with a sharp, irritating smell.

Formaldehyde is a nearly colorless gas with a pungent, irritating odor even at very low concentrations (below 1 ppm). Its vapors are flammable and explosive. Because the pure gas tends to polymerize, it is commonly used and stored in solution.

formaldehyde (HCHO), an organic compound, the simplest of the aldehydes, used in large amounts in a variety of chemical manufacturing processes. It is produced principally by the vapour-phase oxidation of methanol and is commonly sold …

2025年1月16日 · formaldehyde (HCHO), an organic compound, the simplest of the aldehydes, used in large amounts in a variety of chemical manufacturing processes. It is produced principally by the vapour-phase oxidation of methanol and is commonly sold as formalin, a 37 percent aqueous solution.