Is diethylene glycol monobutyl ether a hap?
The EPA is amending the list of hazardous air pollutants (HAP) contained in section 112(b)(1) of the Clean Air Act (CAA) by removing the compound ethylene glycol monobutyl ether (EGBE) (2-Butoxyethanol) (Chemical Abstract Service (CAS) No.
What is glycol ether EB used for?
Ethylene glycol ethers and acetates are used in paint and coatings, hard-surface cleaners, polishes, solvents, chemical intermediates, surfactants, agricultural chemicals and corrosion inhibitors. They are also used in the electronics market.
Is ethylene a hap?
Under the Clean Air Act, EPA is required to regulate emissions of hazardous air pollutants. This original list included 189 pollutants….Initial List of Hazardous Air Pollutants with Modifications.
|CAS Number||Chemical Name|
|151564||Ethylene imine (Aziridine)|
|75343||Ethylidene dichloride (1,1-Dichloroethane)|
Is acetone a hap?
Acetone is not a hazardous air pollutant (HAP) under the federal Clean Air Act Amendments of 1990. In addition, acetone is not subject to the Risk Management Plan (RMP) requirements under section 112(r) pertaining to the prevention of accidental releases. U.S. EPA has also granted acetone VOC-exempt status.
Are glycol ethers HAPs?
The definition of glycol ethers in Section 112 of the Clean Air Act includes only ethers of ethylene glycol, diethylene glycol and triethylene glycol with the structure R-(OCH2CH2)n- R’. Ethers of propylene glycol do not fit this definition and as such are not considered a HAP.
Is toluene a hap?
Examples of other listed air toxics include dioxin, asbestos, toluene, and metals such as cadmium, mercury, chromium, and lead compounds.
Is glycol ether an alcohol?
Glycol ethers are derived from either ethylene oxide (E-series) or propylene oxide (p-series) combined with an alcohol. Methoxyethanol is an E-series glycol ether derived from methanol and ethylene oxide. Other commonly used glycol ethers include ethoxyethanol, butoxyethanol, and methoxypropanol.
Is ethylene glycol a VOC?
Common examples of VOCs that may be present in our daily lives are: benzene, ethylene glycol, formaldehyde, methylene chloride, tetrachloroethylene, toluene, xylene, and 1,3-butadiene.
What is considered a hap?
Hazardous air pollutants (HAPs) are those pollutants that are known or suspected to cause cancer or other serious health effects, such as reproductive effects or birth defects, or adverse environmental effects.
Is Styrene a hap?
Environmental Protection Agency (EPA). Lists styrene as a Hazardous Air Pollutant (HAP) under the National Emissions Standard Hazardous Air Pollutants section of its Clean Air Act.
Is glycol a pollutant?
The Environmental Protection Agency (EPA) has designated ethylene glycol as a hazardous air pollutant under the Clean Air Act (EPA 2007).
Why is diethyl ether a common solvent?
“ Diethyl ether is a common laboratory solvent. It has limited solubility in water ( 6.05 g/100 ml at 25 °C) and dissolves 1.5 g/100 ml water at 25 °C. This, coupled with its high volatility, makes it ideal for use as the non-polar solvent in liquid-liquid extraction. ”
Is glycol an ether?
In use since the 1930s, glycol ethers are solvents that dissolve both water-soluble and hydrophobic substances. Glycol ethers consist of two components, an alcohol and ether. According to the nature of alcohol, molecules of this class can be divided into two groups: E series and P series which correspond to ethylene and propylene respectively.
What are glycol ethers?
The “Ethylene Glycol Ethers Market” research report provides an overall figure of the business with manufactures, types, applications and regions. Ethylene Glycol Ethers Market report gives market overview of the report on the competitive environment
Why is glycerol heavier than ethylene glycol?
Glycerol (1,2,3-trihydroxypropane) has three -OH groups per molecule while ethylene glycol (1,2-dihydroxyethane) has two -OH groups. The viscosity depends on the amount of hydrogen bonding between molecules, and the more -OH bonds there are, the more hydrogen bonding can occur.