What is HCHO called?
formaldehyde (HCHO), also called methanal, 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.
Is formaldehyde gas toxic?
Formaldehyde is a highly toxic systemic poison that is absorbed well by inhalation. The vapor is a severe respiratory tract and skin irritant and may cause dizziness or suffocation. Contact with formaldehyde solution may cause severe burns to the eyes and skin.
Is formaldehyde a gas?
Formaldehyde is a colorless, flammable gas at room temperature and has a strong odor. Exposure to formaldehyde may cause adverse health effects.
What gas smells like pickles?
Formaldehyde is a colorless chemical with a strong pickle-like odor that is commonly used in many manufacturing processes. It easily becomes a gas at room temperature, which makes it part of a larger group of chemicals known as volatile organic compounds (VOCs).
What is HCHO in air quality?
Formaldehyde (HCHO) is the most important carcinogen in outdoor air among the 187 hazardous air pollutants (HAPs) identified by the U.S. Environmental Protection Agency (EPA), not including ozone and particulate matter.
What class is formaldehyde?
Aldehyde
Organic compound
Formaldehyde/Classification
What is Hcho air quality?
What causes high HCHO levels?
Sources of formaldehyde in the home include building materials, smoking, household products, and the use of un-vented, fuel-burning appliances, like gas stoves or kerosene space heaters.
What is a normal HCHO level?
According to research from the California Environmental Protection Agency (2004), levels of formaldehyde in conventional homes average about 20 ppb, while levels in manufactured homes the average is about 40 ppb.
What is healthy co2 level?
Carbon dioxide levels and potential health problems are indicated below: 250-350 ppm: background (normal) outdoor air level. 350-1,000 ppm: typical level found in occupied spaces with good air exchange. 1,000-2,000 ppm: level associated with complaints of drowsiness and poor air.
How does ZnO affect the gas sensing property of HCHO?
The effects of ZnO nanostructure morphology on the gas-sensing property of HCHO have been investigated. The gas sensor based on ZnO nanofibers showed a high sensitivity, reversible response and good selectivity towards HCHO under the irradiation of 365 nm UV-light at room temperature.
How does the HCHO gas sensor work with EC sense?
The HCHO Gas Sensor responds to Formaldehyde gases which are necessary to detect in many different applications. In combination with the EC Sense Smart Digital Boards, it allows easy integration without the tedious work of sensor calibration.
What are the characteristics of formaldehyde gas HCHO?
Formaldehyde Gas HCHO Characteristics, Toxicity, Gas Exposure Limits Formaldehyde is an organic chemical with formula HCHO, CAS No. 50-00-0 that is very widely used in industry as well as in a plethora of consumer products from cosmetics and clothing to furnishings and construction materials as well as in disinfectants and preservatives.