How does formaldehyde affect the body? Seriously more...

  • Physical properties of formaldehyde

    Description: Almost colorless gas with a pungent, pungent odor

    WARNING FEATURES: Odor is detectable below 1 ppm, but many sensitive individuals experience symptoms below the odor threshold.

    Molecular Weight: 30.0 Daltons

    Boiling Point (760 mm Hg): - 6°F (-21°C)

    Vapor Pressure: 3883 mm Hg at 77°F (25°C)

    Gas density: 1.07 (air=1)

    Water Soluble: 55% at 68°F (20°C)

    Flammability: Between 7% and 73% flammable gas (concentration in air) at 77°F (25°C); flammable liquid (formalin)

    Incompatibility: Formaldehyde reacts with strong oxidants, alkalis, acids, phenols and urea. Pure formaldehyde has a tendency to polymerize.

    Formaldehyde Health Effects

    Formaldehyde is an irritant to the eyes, skin and respiratory tract. Inhaling the vapor can cause the bronchi to narrow and fluid to build up in the lungs, therefore better to have  Formaldehyde removal ( 除甲醛)  .

    Children may be more susceptible to the respiratory effects of formaldehyde than adults.

    Formaldehyde solutions (formalin) cause corrosive damage to the gastrointestinal tract, especially the pharynx, epiglottis, esophagus and stomach.

    The systemic effects of formaldehyde are primarily due to its metabolic conversion to formate and may include metabolic acidosis, circulatory shock, respiratory insufficiency, and acute renal failure.

    Formaldehyde is a potent sensitizer and a probable human carcinogen.

    Acute exposure to formaldehyde

    Formaldehyde vapor can cause immediate local irritation to mucous membranes, including the eyes, nose, and upper respiratory tract. Ingestion of formalin can cause serious damage to the gastrointestinal tract. The exact mechanism of action of formaldehyde toxicity is unknown, but it is known to interact with and disrupt cell function with molecules such as proteins and DNA in cell membranes and body tissues and fluids. High concentrations can cause protein precipitation, which can lead to cell death. Absorption is very rapid from the respiratory tract; absorption from the gastrointestinal tract is also rapid, but may be delayed by ingestion with food. Once absorbed, formaldehyde is metabolized to formic acid, which can cause acid-base imbalances and many other systemic effects.

    Children don't always respond to chemicals the way adults do. Different protocols may be required to manage their care.

    Central nervous system discomfort, headaches, sleep disturbances, irritability, and impairment of flexibility, memory, and balance may be caused by a single high level of formaldehyde exposure.