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CDC NIOSH Numbered Publications All Publications

The following is a complete list of all publications issued by NIOSH. To view publication numbers, click the "Show Publication Numbers" link at the top of the list.

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Rare earths in the cross hairs of new high tech arms race

Rare earths 101. Composition. The rare earths are a group of 17 elements comprising scandium, yttrium, and the lanthanides. The lanthanides are a group of 15 (cerium, dysprosium, erbium,

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Environmental Geochemistry ronstoessell

Class Notes for Environmental Geochemistry. To do this problem you simply calculate the activity of Al 3+ in equilibrium with gibbsite at each pH value and then use the the equilibrium reactions linking Al(OH) n 3 n with Al 3+ to calculate the activities of each Al(OH) n 3 n species. The sum of all the molalities of all these Al species would be the solubility of gibbsite at each pH point.

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Guidelines for Canadian Drinking Water Quality Guideline

Footnote a. Estimates based on the mean concentration of total chromium of 2.0 µg/L in unfiltered distributed drinking water in Ontario as reported in the Ontario Drinking Water Surveillance Program for 19972007 (OMOE, 2008), and assuming that Cr(VI) represents 100% of total chromium in drinking water (Sanexen, 2009).

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Bentonite, Kaolin and Selected Clay Minerals (EHC 231, 2005)

1. SUMMARY 1.1 Identity, physical and chemical properties, and analytical methods . Bentonite is a rock formed of highly colloidal and plastic clays composed mainly of montmorillonite, a clay mineral of the smectite group, and is produced by in situ devitrification of volcanic ash. In addition to montmorillonite, bentonite may contain feldspar, cristobalite, and crystalline quartz.

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Part 261 Identification and Listing of Hazardous Waste

(a) This part identifies those solid wastes which are subject to regulation as hazardous wastes under Parts 262 through 265, Part 268 and Parts 122 through 124 of these regulations and which are subject to the notification requirements of 7 Del.C., §§6304, 6306 and 6307.

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Tantalum pentoxide

Tantalum pentoxide, also known as tantalum(V) oxide, is the inorganic compound with the formula Ta 2 O 5.It is a white solid that is insoluble in all solvents but is attacked by strong bases and hydrofluoric acid. Ta 2 O 5 is an inert material with a high refractive index and low absorption (i.e. colourless), which makes it useful for coatings. It is also extensively used in the production of

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Caesium (IUPAC spelling) or cesium (American spelling) is a chemical element with symbol Cs and atomic number 55. It is a soft, silvery golden alkali metal with a melting point of 28.5 °C (83.3 °F), which makes it one of only five elemental metals that are liquid at or near room temperature. Caesium has physical and chemical properties similar to those of rubidium and potassium.

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Chapter 82 Metal Processing and Metal Working Industry

Zinc. Zinc concentrate is produced by separating the ore, which may contain as little as 2% zinc, from waste rock by crushing and flotation, a process normally performed at the mining site.

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Software NIST

Advanced options. Topic Area

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Crushing & Screening

Grinding & Classifying

Separating process

Thickening process


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