Hydrogen chloride and hydrogen fluoride emission factors for the NAPAP Emission Inventory
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U.S. Environmental Protection Agency, Air and Energy Environmental Research Laboratory [sic] , Research Triangle Park, NC
Acid deposition -- Environmental aspects, Chlorides -- Environmental aspects, Hydrogen fluoride -- Environmental as
|Statement||David C. Misenheimer ... [et al.]|
|Contributions||Misenheimer, David C, Air and Energy Engineering Research Laboratory|
|The Physical Object|
|Pagination||3 p. ;|
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The complete report, entitled "Hydrogen Chloride and Hydrogen Fluoride Emission Factors for the NAPAP Emission Inventory," (Order No. PB /AS; Cost: $, subject to change) will be available only from: National Technical Information Service Port Royal Road Springfield.
that estimates of hydrogen chloride and hydrogen fluoride are needed in its emission inventory.
Details Hydrogen chloride and hydrogen fluoride emission factors for the NAPAP Emission Inventory FB2
In this study, sources of emissions. the atmosphere of hydrogen chloride and hydrogen fluoride were identified and associated emission factors were estimated.
Emission factors. While sulfuric and nitric acids are considered primary precursors of acid deposition, contributions of hydrogen chloride (HCl) and hydrogen fluoride (HF) are also significant.
This report summarizes the findings of a study to identify and characterize sources of emissions to the atmosphere of HCl and HF. Hydrogen Chloride And Hydrogen Fluoride Emission Factors For The NAPAP (National Acid Precipitation Assessment Program) Emission Inventory, U.
Environmental Protection Agency, Research Triangle Park, NC, October 5. Atmospheric Emissions From Hydrochloric Acid Manufacturing Processes, AP Reference 5: Hydrogen Chloride and Hydrogen Fluoride Emission Factors for the NAPAP Emission Inventory The quote related to HCl emissions from the combustion of coal found in the Emissions chapter was obtained from Reference 5.
Reference 6: Atmospheric Emissions from Hydrochloric Acid Manufacturing Processes.
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The report gives results of a study to develop emission factors for significant sources of hydrogen chloride and hydrogen fluoride. Information developed in the report includes significant emission sources, source descriptions, uncontrolled emission factors, controls commonly used, and average control efficiencies.
• The chemical formula for hydrogen fluoride is HF, and its molecular weight is g/mol. (4) • Hydrogen fluoride is a colorless gas that is highly soluble in water. (4) • Hydrogen fluoride has a strong irritating odor; the odor threshold is mg/m 3.
(4) • Anhydrous hydrogen fluoride is one of the strongest acids known. (2). Hydrofluoric acid is also used to produce fluorocarbons used in aerosol sprays and in refrigerants.
Although fluorocarbons are heavily regulated due to environmental concerns, other applications for fluorocarbons include manufacturing of resins, solvents, stain removers, surfactants, and pharmaceuticals.
Process Description, Size: 81KB. The geometrical and energetical parameters of hydrogen fluoride and hydrogen chloride crystals are calculated using the periodic Hartree–Fock method with G and G(d,p) basis comparison of the stabilisation energies reveals that HCl crystals are Cited by: 4.
The atmospheric chemistry, emissions, and surface boundary layer transport of hydrogen fluoride (HF) are summarized. Although HF is known to be chemically reactive and highly soluble, both factors affect transport and removal in the atmosphere, the chemistry can be ignored when the HF concentration is at a sufficiently low level (e.g., 10 ppmv).Cited by: 3.
Hydrogen fluoride is only of limited value for the conversion of alcohols to fluorides. Anhydrous HF is a dangerous low boiling liquid (b.p. °C), which can cause painful injuries if traces of the acid come into contact with the skin.
Only tertiary and secondary alcohols give fluorides, accompanied by elimination products and ethers. Olah’s reagent, a mixture of 70% HF and 30%. sample of anhydrous hydrogen fluoride. According to Fremy: Hydrogen fluoride obtained by this method is a gas at room temperature, but it can be condensed, by a mixture of ice and salt into a very fluid liquid that reacts vigorously with water and in contact with air gives white fumes less intense than those of boron by: NAPAP Emission Factors Background Criteria Pollutant Emission Factors Primary Sulfate Emission Factors Hydrogen Chloride and Hydrogen Fluoride Emission Factors Ammonia Emission Factors References 5.
Development and Quality Assurance of the NAPAP Modelers' Emissions Inventory - Version 2 Background. Hydrogen Chloride and Hydrogen Fluoride Emission Factors for the NAPAP (National Acid Precipitation Assessment Program) Emission Inventory.
Authors: Misenheimer DC Battye RE Clowers MR Werner AS. GCA Corp., Chapel Hill, NC. GCA Technology Div. EPA/ (NTIS PB), U.S. Environmental Protection Agency, Air and Energy Engineering Research Laboratory, Research Triangle Park, North Carolina, September D.
Misenheimer et al., Hydrogen Chloride and Hydrogen Fluoride Emission Factors for the NAPAP Emission Inventory. In adults, high fluoride over a long time may lead to skeletal fluorosis with denser bones, joint pain, and limited joint movement. This is rare. High levels of fluorine or hydrogen fluoride gas can cause muscle spasms, harm the lungs and heart and cause death.
At low levels they can irritate the eyes, skin. i Abstract The removal of hydrogen fluoride (HF) from fluorine (F 2) and other media, e.g.
inorganic and organic compounds, is normally achieved by adsorbing HF onto sodium fluoride (NaF). Quantity Value Units Method Reference Comment; Δ r H°: ± 5. kJ/mol: AVG: N/A: Average of 6 out of 7 values; Individual data points Quantity Value Units Method Reference Comment; Δ r.
Get hydrogen fluoride at best price with product specifications. Listed hydrogen fluoride manufacturers, suppliers, dealers & exporters are offering best deals for hydrogen fluoride.
a synonym for hydrofluoric acid. Cite this entry as: () hydrogen fluoride. In: Manutchehr-Danai M. (eds) Dictionary of Gems and Gemology. FLUORIDES, HYDROGEN FLUORIDE, AND FLUORINE 4.
CHEMICAL AND PHYSICAL INFORMATION Table Physical and Chemical Properties of Fluorine, Hydrogen Fluoride, Sodium Fluoride, Fluosilicic Acid, and Sodium Silicofluoridea Property Fluorine Hydrogen fluoride Sodium fluoride Molecular weight File Size: KB. As indicated, area source emission factors were not specified (i.e., in Bibliography Refer- ences 1 through 87) for the following pollutants: ammonia, asbestos, hy- drogen chloride, hydrogen fluoride, and hydrogen sulfide.
In addition, only limited data were found for Categories III and IV (highway and other ve- hicles).
Description Hydrogen chloride and hydrogen fluoride emission factors for the NAPAP Emission Inventory FB2
18 ème Année, Décembre. Article sulphuric acid, hydrogen fluoride evolves and. emission factors For T he NAPAP (National Acid. The plaice is acidic with hydrogen chloride and chlorine vapors, which cause a variety of corrosion problems.
48 HYDROCHLORIC ACID AND AIR POLLUTION Since the stack discharge temperature can range as low as F — and aluminum chloride sublimates at about F, blockage of ductwork can also occur. US EPA Report: The Hydrogen Chloride and Hydrogen Fluoride Emission Factors of NAPAP (National Acid Precipitation Assessment Program) Emission Inventory, US EPA Report No.
/7–85/, October Google Scholar. FLUORIDES, HYDROGEN FLUORIDE, AND FLUORINE 6. POTENTIAL FOR HUMAN EXPOSURE OVERVIEW Fluorides, hydrogen fluoride, and fluorine have been identified in at least of the 1, hazardous waste sites that have been proposed for inclusion on the EPA National Priorities List (NPL) (HazDat ).
Anhydrous hydrogen fluoride slowly reacts over time with the iron in the steel cylinder to form iron fluoride and hydrogen. The hydrogen pressure can ultimately build to the point where it ruptures the cylinder. The photo above shows the remains of a cylinder that ruptured as a result of this reaction.
In emission, rotation-vibration bands have been studied by Mann, Thrush, et al., and Sileo and Cool,the latter extending the chemical laser emission, first observed in the band by Kompa and Pimentel,to v=9 and Δv=6.The low-lying states of hydrogen fluoride. Hydrogen Final Fluoride Study Report Report to Congress Section (n)(6) Clean Air Act As AmendedFile Size: 8MB.
Hydrogen fluoride (HF) is a colorless gas or liquid that is made up of a hydrogen atom and a fluorine atom. It creates strong fumes, readily dissolves in water, and both the liquid and gas will cause severe burns upon contact.
GENERAL REFERENCES PHYSICAL PROPERTIES OF PURE SUBSTANCES Tables Physical Properties of the Elements and Inorganic Compounds.nitrogen trifluoride, ammonia anhydrous, hydrofluoric acid, hydrogen fluoride Chemical accident in Germany (west) with hydrogen fluoride (hf) Quality.Combustion Product.
Combustion products are typically CO2 and water, although additional diluents may come from the fuel or the oxidizer streams. And, when there are halogens, there will be hydrogen chloride, hydrogen bromide and hydrogen fluoride in the combustion product gases.
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