1 edition of Toxic manifestations of beryllium and its compounds. found in the catalog.
Toxic manifestations of beryllium and its compounds.
Written in English
|Contributions||Van Ordstrand, H. S.|
|LC Classifications||RA1231.B4 T6|
|The Physical Object|
|Number of Pages||54|
|LC Control Number||50033530|
ICDCM is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, should only be used for claims with a date of service on or before Septem For claims with a date of service on or after October 1, , use an equivalent ICDCM code (or codes). TOXICOLOGICAL REVIEW OF BERYLLIUM AND COMPOUNDS (CAS No. ) In Support of Summary Information on the Integrated Risk Information System (IRIS) April Revised May, (Inhalation cancer assessment and other selected text, as indicated) NOTICE This document is an External Review draft. This information is distributed solely for the.
Substance Name — Beryllium and compounds CASRN — Last Revised — 04/03/ The oral Reference Dose (RfD) is based on the assumption that thresholds exist for certain toxic effects such as cellular necrosis. It is expressed in units of mg/kg-day. In general, theFile Size: KB. Request PDF | Beryllium | This chapter discusses the chemical element of Beryllium, its uses, physical and chemical properties, mammalian toxicology, and the .
Beryllium content of the ashes and waste- water from a power plant suggest that secondary long term beryllium pollution emerges from the slag and ash dumps. It is also found in discharges from other industrial and municipal operations. Rocket exhaust products also consist of its compounds, principally the oxide, fluoride and chloride. List of Beryllium Compounds, Common Compounds of Beryllium Be, Formula, Molecular Weight.
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Beryllium poisoning is poisoning by the toxic effects of beryllium, or more usually its takes two forms: Acute beryllium poisoning, usually as a result of exposure to soluble beryllium salts; Chronic beryllium disease (CBD) or berylliosis, usually as a result of long-term exposure to beryllium oxide usually caused by inhalation.
Most exposures to beryllium that cause disease are related to some aspect of beryllium processing. Because of its unique properties, beryllium is used in many high-technology consumer and commercial products.
The major pathway for human exposure is through airborne particles of beryllium metal, alloys, oxides, and ceramics (Kolanz ).
Beryllium and its compounds are not biotransformed but remain as Be +2 in the body. The highest levels of beryllium are found in bone; lesser amounts are distributed to the liver and kidneys.
Chronic beryllium disease tends to have less prominent extrapulmonary manifestations. For example, to date, no patient with chronic beryllium disease. Beryllium compounds, n.o.s. are generally white, crystalline or powdered material containing beryllium.
They are generally soluble in water. They are toxic by inhalation and by ingestion. Hazards. What is this information. The Hazard fields include special hazard alerts air and water reactions, fire hazards.
Review of Beryllium and Compounds (2), and the Agency for Toxic Substances and Disease Registry's (ATSDR's) Toxicological Profile for Beryllium. (1) Uses Pure beryllium and its metal alloys have applications in electrical components, tools, structural components for aircraft, missiles, and satellites, and other metal-fabricating uses.
(1). Beryllium has an exclusive + 2 oxidation state in all of its compounds and most of them are soluble. Beryllium chloride is highly soluble in water, alcohol, and benzene. Beryllium fluoride is readily soluble in water, but only slightly soluble in alcohol.
Beryllium oxide is insoluble in hot water and soluble in acids, alkalis, and ammonium. Beryllium An overview Overview Beryllium Isotopes Isotopes of beryllium Beryllium Beryllium alloys AlBeMet E-Material Glucydur Beryllium compounds Basic beryllium acetate Beryllide Beryllium bromide Beryllium carbide Beryllium carbonate Beryllium chloride Beryllium fluoride Beryllium hydride Beryllium hydroxide Beryllium iodide Beryllium nitride.
beryllium. It is not intended to be a comprehensive treatise on the chemical or toxicological nature of beryllium and compounds. In Section 6, EPA has characterized its overall confidence in the quantitative and qualitative aspects of hazard and dose-response (U.S.
EPA, a). Matters considered in thisFile Size: KB. Beryllium is a lightweight but extremely strong metal used in the aerospace, electronics, energy, telecommunications, medical, and defense industries. Beryllium-copper alloys are widely used because of their electrical and thermal conductivity, hardness, and good corrosion resistance.
Beryllium oxide is used to make ceramics for electronics and. Beryllium is a hard, grayish metal naturally found in mineral rocks, coal, soil, and volcanic dust.
Beryllium compounds are commercially mined, and the Beryllium is purified for use in nuclear weapons and reactors, aircraft and space vehicle structures, instruments, x-ray machines, and mirrors. Beryllium ores are used to make speciality ceramics for electrical and.
Beryllium and beryllium compounds are known to be human car ing point of °C to °C and produces toxic fumes of beryllium oxide upon heating. Beryllium-aluminum alloy may contain 20% to 60% beryllium (IARCATSDR ). Use Beryllium’s unique properties (as a light metal with a very high melt-File Size: KB.
Beryllium and its compounds are listed as toxic chemicals under the Emergency Planning and Community Right-to-Know Act of ; estimates of releases of beryllium and its compounds into air, water or land must be reported annually and entered into the.
Beryllium-related disease are caused by dust or fumes inhaled by any individual exposed to beryllium. Beryllium was being mined and used in electronic and chemical industries.
Manufacture of fluorescent light bulbs used beryllium before. Nowadays, beryllium is more commonly utilized in the aerospace and beryllium-aluminum casting industries.
Occurrence, properties, and uses. Beryllium is a steel-gray metal that is quite brittle at room temperature, and its chemical properties somewhat resemble those of does not occur free in nature. Beryllium is found in beryl and emerald, minerals that were known to the ancient gh it had long been suspected that the two minerals were similar, chemical.
Beryllium, some of its alloys, and a variety of its compounds have induced malignant tumors of the lung and osteogenic sarcoma in experimental animals. Three animal species, monkeys, rabbits, and rats, have been shown to be susceptible. Beryllium induces Cited by: AIR POLLUTION ASPECTS OF BERYLLIUM AND ITS COMPOUNDS Prepared for the National Air Pollution Control Administration Consumer Protection & Environmental Health Service Department of Health, Education, and Welfare (Contract No.
PH) Compiled by Norman L. Durocher Litton Systems, Inc. Environmental Systems Division Pearl Street. Beryllium and Beryllium Compounds. Beryllium and beryllium compounds were first listed in the Second Report on Carcinogens as. reasonably anticipated to be human carcinogens.
Carcinogenicity. Beryllium and beryllium compounds are. known to be human carcinogens, based on findings ofFile Size: 5MB. Metal toxicity and solubility are also greater in soft, low-alkaline water.
The amount of leaching that occurs is a function of contact time. The longer the water sits in a pipe, the higher the metal concentration. Metals can also be bound and inactivated by organic matter. Clinical signs of metal toxicity in fish can be variable and nonspecific.
Beryllium is a toxic bivalent element, steel gray, strong, light-weight, primarily used as hardening agent in alloys. Beryllium has one of the highest melting points of the light metals. It has excellent thermal conductivity, is nonmagnetic, it resists attack by concentrated nitric acid and at standard temperature and pressures beryllium resist.
Beryllium is a very rare metal that is almost never found in its pure form. It is part of the alkaline earth metals group which makeup the second column of the period table.
Characteristics and Properties In its free state beryllium is a strong, but brittle metal. Beryllium-copper alloy usually contains 4–% beryllium by weight, with a melting point of –°C and produces toxic fumes of beryllium oxide upon heating.
Beryllium-copper alloy is used in electrical connectors and relays, wheels and pinions, nonsparking tools, and Cited by: The TLV-TWA for beryllium and its compounds suggested by the ACGIH is mg/m 3. With exposure at the level of the TLV value and an assumed volume of air of 10 m 3 per shift and % absorption, the amount of beryllium absorbed via inhalation would be 2 µg per day.The author's exposition on the uses of beryllium is my favorite part of this book, including its employment in the faking of rare orange-pink sapphires called `padparadscha.' Because of its atomic structure, Beryllium also played an important role in the discovery of the neutron by James Chadwick in /4(1).