Search results
Results From The WOW.Com Content Network
Household chemicals are non-food chemicals that are commonly found and used in and around the average household. They are a type of consumer goods , designed particularly to assist cleaning , house and yard maintenance, cooking, pest control and general hygiene purposes, often stored in the kitchen or garage.
Many homes around the world used solid fuels for cooking. These fuels release large amounts of carbon monoxide and fine particulate matter. [46] These chemical irritants when inhaled may cause different pulmonary conditions ranging from pulmonary epithelial cancer or acute pulmonary tract infection. [47]
Flame coloring is also a good way to demonstrate how fire changes when subjected to heat and how they also change the matter around them. [1] [2] To color their flames, pyrotechnicians will generally use metal salts. Specific combinations of fuels and co-solvents are required in order to dissolve the necessary chemicals.
Products that are packaged in aerosol cans contain a chemical known as propellant gas. [5] Almost always, this propellant gas is called chlorofluorocarbons (CFCs). [5] CFCs have been proven to damage the ozone layer and caused the ozone hole. Thus, in 1996, CFCs were banned directly as a result of the detrimental environmental impacts. [6]
In a similar fashion other chemical or physical reactions can take place in the presence of water vapor resulting in new chemicals forming such as rust on iron or steel, polymerization occurring (certain polyurethane foams and cyanoacrylate glues cure with exposure to atmospheric humidity) or forms changing such as where anhydrous chemicals may ...
Sulfates in solution in contact with concrete can cause chemical changes to the cement, which can cause significant microstructural effects leading to the weakening of the cement binder (chemical sulfate attack). Sulfate solutions can also cause damage to porous cementitious materials through crystallization and recrystallization (salt attack). [7]
Chemical ecology is a vast and interdisciplinary field utilizing biochemistry, biology, ecology, and organic chemistry for explaining observed interactions of living things and their environment through chemical compounds (e.g. ecosystem resilience and biodiversity).
Condensation is the change of the state of matter from the gas phase into the liquid phase, and is the reverse of vaporization. The word most often refers to the water cycle . [ 1 ] It can also be defined as the change in the state of water vapor to liquid water when in contact with a liquid or solid surface or cloud condensation nuclei within ...