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Arsenic aluminum

Without known nutritional function but toxic in excess Aluminum, arsenic, antimony, boron, bromine, cadmium, cesium, germanium, lead, mercury, silver, strontium... [Pg.496]

Heavy metals with no known biological function, such as aluminum, arsenic, lead, and mercury, are nonessential metals.4-5 These metals are toxic because they can irreversibly bind to enzymes that require metal cofactors. Toxic metals readily bind to sulfhydryl groups of proteins.6-7 In fact,... [Pg.409]

Nixon277 compared atomic absorption spectroscopy, flame photometry, mass spectroscopy, and neutron activation analysis as methods for the determination of some 21 trace elements (<100 ppm) in hard dental tissue and dental plaque silver, aluminum, arsenic, gold, barium, chromium, copper, fluoride, iron, lithium, manganese, molybdenum, nickel, lead, rubidium, antimony, selenium, tin, strontium, vanadium, and zinc. Brunelle 278) also described procedures for the determination of about 20 elements in soil using a combination of atomic absorption spectroscopy and neutron activation analysis. [Pg.106]

Major constituents (greater than 5 mg/L) Minor constituents (O.Ol-lO.Omg/L) Selected trace constituents (less than 0.1 mg/L) Bicarbonate, calcium, carbonic acid, chloride, magnesium, silicon, sodium, sulfate Boron, carbonate, fluoride, iron, nitrate, potassium, strontium Aluminum, arsenic, barium, bromide, cadmium, chromium, cobalt, copper, gold, iodide, lead, Uthium, manganese, molybdenum, nickel, phosphate, radium, selenium, silver, tin, titanium, uranium, vanadium, zinc, zirconium... [Pg.26]

The vendor claims that the following metals have been successfully treated to parts per biUion (ppb) and detection limit levels aluminum, arsenic, cadmium, chromium, cobalt, copper, iron, lead, manganese, mercury, molybdenum, nickel, selenium, silver, tin, uranium, vanadium, and zinc. The system is also able to remove ammonia, nitrates, phosphates, potassium, fluorides, and sodium. Studies have also been performed using Aqua-Fix to remove radionuchdes such as uranium from waste streams. [Pg.336]

Nickel and vanadium are the most abundant metals found in crude oil. Other metals, metalloids, and nonmetals including aluminum, arsenic, barium, calcium,... [Pg.38]

Although iron, manganese, magnesium, calcium, and aluminum arsenates are usually too water soluble to control arsenic mobility in soils (Inskeep, McDermott and Fendorf, 2002), 187, iron, aluminum, or manganese arsenates occur in some acidic soils. In particular, scorodite may form from the partial weathering of arsenian pyrite or arsenopyrite (Inskeep, McDermott and Fendorf, 2002), 187. Calcium arsenates may be present in alkaline calcium-rich soils (Matschullat, 2000), 303 (Mandal and Suzuki, 2002), 204. [Pg.172]

Aluminum, arsenic, barium, cadmium, calcium, copper, chromium, iron, lead, magnesium, manganese, mercury, nickel, phosphorus, potassium, selenium, sodium, sulfur, thallium, zinc, aldrin, dichlorodiphenyldichloroethane, dichlorodiphenyldichlorethene, dieldrin, hexachlorobenzene, heptachlorepoxide, hexachlorocyclohexane, dichlorodiphenyltrichloroethane (DDT), PCBs, pentachlorophenol, P,P -DDT... [Pg.68]

Analysis of particles originating from the use of outdoor fireworks revealed that the majority of the particles was irregular, many were crystalline, and many large flakes were present. A small proportion of the particles were spherical and physically resembled FDR particles. Elemental analysis showed the presence of aluminum, arsenic, barium, calcium, chlorine, copper, iron, potassium, magnesium, sodium, lead, sulfur, antimony, silicon, strontium, titanium, zinc, and zirconium. None of the particles detected would be confused with FDR particles as the primary FDR elements were always accompanied by elements that were clearly of non-FDR source. [Pg.151]

Dry chlorine reacts widi most metals combustively depending on temperature aluminum, arsenic, gold, mercury, selenium, tellerium, and tin react with dry Cl2 in gaseous or liquid form at ordinary temperatures carbon steel ignites at about 250 °C depending on the physical shape and titanium reacts violently with dry chlorine. Wet chlorine is very reactive because of the hydrochloric acid and hypochlorous acid (see eq. 37). Metals stable to wet chlorine include platinum, silver, tantalum, and titanium. Tantalum is die most stable to both dry and wet chlorine. [Pg.509]

Arsenic in soilds has been fractionated by Jackson s T28) procedure for soil phosphorus (15. 27). In this laboratory, a modification of Jackson s procedure is being used on sediment solids. A series of 1 molar solutions of NH4CI, NH4OH, acid ammonium oxalate (29) and HCl are used in sequence. The chloride fraction, or exchangeable fraction, contains weakly adsorbed, coulombically bound arsenic. The hydroxide fraction, contains iron and aluminum arsenate precipitates and surface precipitates (i.e. adsorbed arsenic species having both chemical and coulombic bonding to oxide surfaces). The oxalate, or reductant soluble fraction, contains arsenic occluded in amorphous weathering products. The acid, or calcium, fraction contains arseno-apatites. [Pg.714]

Ca or arsenoapatite). This order was greatly enhanced in the top section of the core, for which the redox potential in pore waters was -5 mV. All other redox potentials were less than -230 mV. Thus, the top section of the core was the only section in which amorphous Fe(0H)3 was stable (30) and was the section in which the most iron and aluminum arsenic should be found. This data indicates that most of the solid phase arsenic was arsenate (11). [Pg.716]

A strong base. Vigorous reaction with 1,2,4,5-tetrachlorobenzene has caused many industrial explosions and forms the extremely toxic 2,3,7,8-tetrachlorodibenzodioxin. Mixmres with aluminum + arsenic compounds form the poisonous gas arsine. Potentially explosive reaction with bromine, 4-chlorobutyronitrile, 4-chloro-2-methylphenol (in storage), nitrobenzene + heat, sodium tetrahydroborate, 2,2,2-trichloroethanol, zirconium + heat. Reacts to form explosive products with ammonia + silver nitrate (forms silver nitride), N,N -bis(trinitroethyl)urea (in storage), cyanogen... [Pg.1257]

A principal environmental concern associated with mine wastes results from the oxidation of sulfide minerals within the waste materials and mine workings, and the transport and release of oxidation products. The principal sulfide minerals in mine wastes are pyrite and pyrrhotite, but others are susceptible to oxidation, releasing elements such as aluminum, arsenic, cadmium, cobalt, copper, mercury, nickel, lead, and zinc to the water flowing through the mine waste. [Pg.4696]

Aluminum reacts with arsenic acid, HAsOs, to form H2 and aluminum arsenate. Write a balanced equation for this reaction. [Pg.291]

Methods for aluminum, arsenic, lead, mercury, and selenium are included in the Appendix to Chapter 35 located on this book s accompanying Evolve site, found at http //evolve.elsevier.com/Tietz/textbook/. [Pg.1374]

Note According to this definition, it is strictly improper to refer to elements that exist in only one atomic form as having one isotope actually such elements as beryllium, aluminum, arsenic, iodine, and others have no isotopes, that is, they have no other atomic form that is like them in all respects except mass. The term isotope requires the existence of at least two elemental forms, in the same sense that the word twin requires the existence of a pair. [Pg.719]

Diverse chemicals have been reported to affect measured endpoints of fish thyroidal status. These chemicals include aromatic hydrocarbons, planar halogenated aromatic hydrocarbons (dioxans, furans, coplanar PCBs), organochlorine, organophosphorus and carbamate pesticides, chlorinated paraffins, cyanide compounds, methyl bromide, phenol, ammonia, metals (aluminum, arsenic, cadmium, lead and mercury), low pH conditions, environmental steroids and a variety of pharmaceutical agents. For the following reasons their modes of action appear complex and are poorly understood16. [Pg.400]

BARIUM BROMATE (13967-90-3) A strong oxidizer. Reacts with water, forming bromic acid. Explosive decomposition in elevated temperatures above 500°F/260°C. Violent reaction with reducing agents. Incompatible with combustible materials, aluminum, arsenic, carbon, copper, metal sulfides, finely divided metals, organic substances, phosphorus,. sulfur. Aqueous solution is incompatible with organic anhydrides, acrylates, alcohols, aldehydes, alkylene oxides, substituted allyls, cresols, caprolactam solution, epichlorohydrin, ethylene dichloride, glycols, isocyanates, ketones, maleic anhydride, nitrates, nitromethane, phenols, vinyl acetate. [Pg.150]

Abiotic toxic damage and accumulation of metals and nonmetals in wild and cultivated plants may result from natural geochemical loads in the soil (Kovalskij 1977) caused by macro, trace and ultratrace elements in water used for irrigation, in natural volcanoes and anthropogenic industrial pollution of the atmosphere. Water, aerosols, and dust contain a variety of aluminum, arsenic, cad-... [Pg.103]

Emission spectroscopy with arc and spark excitation has been used since the 1930s for many industrial analyses. In metaUurgy, for example, the presence in iron and steel of the elements nickel, chromium, sihcon, manganese, molybdenum, copper, aluminum, arsenic, tin, cobalt, vanadium, lead, titanium, phosphoms, and bismuth have been determined on a routine basis. Modem instruments can also measure oxygen, nitrogen, and carbon in metals, which used to require separate measurements with dedicated high-temperature... [Pg.482]


See other pages where Arsenic aluminum is mentioned: [Pg.60]    [Pg.107]    [Pg.92]    [Pg.332]    [Pg.195]    [Pg.249]    [Pg.356]    [Pg.137]    [Pg.151]    [Pg.152]    [Pg.815]    [Pg.952]    [Pg.197]    [Pg.197]    [Pg.198]    [Pg.277]    [Pg.331]    [Pg.554]    [Pg.722]    [Pg.722]    [Pg.724]    [Pg.731]    [Pg.899]    [Pg.1073]    [Pg.572]    [Pg.115]    [Pg.248]    [Pg.83]   
See also in sourсe #XX -- [ Pg.2 , Pg.4 , Pg.5 , Pg.7 ]




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