formaldehyde

[for-mal´dĕ-hīd]

a gaseous compound with strongly disinfectant properties. It is used in a 37 per cent solution (formaldehyde solution; also called formol or formalin) as a disinfectant and as a preservative and fixative for pathological specimens. The gas is toxic and carcinogenic.

for·mal·de·hyde

(fōr-mal'dĕ-hīd),

A pungent gas, HCHO, used as an antiseptic, disinfectant, and histologic fixative, usually in an aqueous solution.

Synonym(s): formic aldehyde, methyl aldehyde

[form(ic) + aldehyde]

Farlex Partner Medical Dictionary © Farlex 2012

formaldehyde

H₂C=O, methanal Occupational safety A highly toxic, flammable gas that is highly irritating to the respiratory and conjunctival mucosa at concentrations > 2 ppm; formaldehyde is soluble in water and forms methylene bridges between denatured proteins. See Formalin.

for·mal·de·hyde

(fōr-mal'dĕ-hīd)

A pungent gas, HCHO, used as an antiseptic, disinfectant, and histologic fixative, usually in an aqueous solution.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

for·mal·de·hyde

(fōr-mal'dĕ-hīd)

A pungent gas used as an antiseptic, disinfectant, and histologic fixative.

[form(ic) + aldehyde]

Medical Dictionary for the Dental Professions © Farlex 2012

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References in periodicals archive

New research has proposed a fascinating possibility: that the ubiquitous environmental toxin formaldehyde interrupts the vital structure and function of proteins and DNA in our cells.

Many studies reveal associations between formaldehyde exposure and age-related problems, including glaucoma, stroke, Alzheimer's disease, and cognitive decline.

Carnosine Protects Against Formaldehyde Exposure

Data evaluation.--In order to determine the effects of wood-based board types, thickness and time in service on formaldehyde emission for two types of measurements were carried out for correlation.

The results of the formaldehyde emission on wood-based boards related to the board thickness, time in service (3 days and 6 months after production), and the distance to limit values (0.10 ppm) are shown in Table 3.

Eco-Design: Effects of Thickness and Time in Service for Wood-Based Boards on Formaldehyde Emission

Whereas formaldehyde injection to the neck for suicidal purposes are reported in the literature, there are no reports of using the chemical for therapeutic purposes (10).

Exposure to formaldehyde has toxic effects on living tissue.

Complications of Formaldehyde Injection for a Cystic Mass of the Neck

This solution was used for formaldehyde standards derivatization and in sample preparation.

The extraction reaction of formaldehyde was performed during the shaking in the heated water bath and after the centrifuging the mixture broke apart into two phases: the lower is solid and the upper is the extract aliquot.

Determination of Formaldehyde by HPLC with Stable Precolumn Derivatization in Egyptian Dairy Products

As most of the spectrophotometric methods have some disadvantages, while other chromatographic methods are complex to be performed, the aim of this research is to develop and validate a static headspace (SHS) GC-FID method to determine formaldehyde, and then to use it as a screening method and a quality control tool to analyze this impurity in commonly used pharmaceutical excipients.

A Robust Static Headspace GC-FID Method to Detect and Quantify Formaldehyde Impurity in Pharmaceutical Excipients

Liu [3] found that the necessary and sufficient conditions of formaldehyde release from wood-based panels were when the air pressure inside the wood-based panel is greater than the environment and the channel for air circulation is available so that the formaldehyde can release.

Research Progress on Formaldehyde Emission of Wood-Based Panel