Emery dust

Rotary screw (moyno) pumps shear typically 50-70 s" /100 rpm. For highly abrasive (plaster grout, emery dust slurries keep average velocity 1-1.5 m/s mediumly abrasive (clay slurry, sludges) average velocity 1.8-3 m/s lightly abrasive 3-4.5 m/s. Reduce rpm as capacity increases use 1200 rpm for < 0.8 L/rev (15 L/s) < 300 rpm for > 10 L/rev (50 L/s). 

Particulate Matter Other Phan Systemic Poisons. SUica and asbestos dust produce fibrosis. SUicon carbide, carbon (other than exhaust emissions), and emery are iuert dusts. Many organic dusts, eg, poUen, wood, and resius, cause aUergic reactions. Acids, alkaUes, fluorides, and chromates are irritants. 

Dust, inert or nuisance respirable total Emery Endrin... 

Carbon graphite Acetone Abrasion. Abrade with 220-grit emery cloth and solvent-degrease after dust removal. For general-purpose bonding... 

T. Eighmy, B. CranneU, J. Krzanowski, L. Butler, E. Cartledge, E. Emery, J. Eusden, E. Shaw, and C. Francis, Characterization and phosphate stabilization of dusts from the vitrification of MSW combustion residues, Waste Mgmt, 18 (1998) 513-524. 

The role of the atmosphere in the phosphorus cycle seems to be poorly understood. Since it does not exist in the form of stable gaseous compounds, phosphorus in the atmosphere is either adsorbed on particulate matter, e.g. dust (including pollen) and exhaust fumes or dissolved in sea-spray. The fallout of phosphorus, as dry deposition and precipitation, has been estimated to be within the range 3.6—9.2 Tg P y for terrestrial ecosystems, 0.054— 0.140 Tg P y for freshwater ecosystems, and 2.6—3.5 Tg y" for the marine ecosystem. This gives a total fallout from the atmosphere of 6.3—12.8 Tg P y i (Pierrou, 1976). It should be noted, however, that Emery et al. (1955)... 

The particles and dust of the emery paper become embedded in the pores of the metal. R. J. Anderson pointed out this difficulty and recommended the following method of overcoming it, based upon that of Gwyer —... 

Tlte polishing is perfonnfjd upon wheels of various sixes, with lard-ofland flour or emery, the blade being frequently dipped into lime-dust during the operation. A brush-wheel, sprinkled with fine crocus-powder, imparts the final polish. The scabbards, if of metal, the hilts, and other metallic parts are treated tn like manner. 

Emery (corundum. Impure aluminum oxide [CAS 112-62-9]) An abrasive, nuisance dust causing physical Irritation to eyes, skin, and respiratory tract. 10 mg/m Solid crystals of aluminum oxide, Often used for Its abrasive properties (eg, emeiy oloth, emeiy wheel). 

Collins RJ, Emery JJ (1983) KUn dust-fly ash systems for highway bases and subbases. Federal Highway Administration, Report No FHWA/RD-82/167, Washington, DC,... 

Kraszewski L, Emery J (1981) Use of cement kUn dust as a filler in asphalt mixes. In ORF/CANMET Symp on Mineral Fillers. Ontario Research Fonndation and Canada Centre for Mineral and Energy Technology, Toronto, Canada, p 526... 

The denudation velocity is shown as a function of the parameter (FautP) in Fig. X.9. In Eq. (X.65), only the force of autohesion and the particle density are taken into account no consideration is given to the force of adhesion, even though Davies notes that dust is detached from polished brass surfaces more readily than from surfaces covered with Grade 0 emery paper [280]. 

Expanded plastic (foams etc.) Do not use solvent Roughen the surface with emery paper Remove all dust and contaminants... 

Plaster If plaster is fresh, allow to dry thoroughly Smooth the surface with fine-grit emery paper Remove all dust before applying adhesives... 

Corundum see Emery. Cotton dust (raw) Crag herbioide (Sesone) 136-78-7 — 1 ... 

Precaution Wear nuisance dust mask if use causes dusting and plastic or rubber gloves may forni explosive mixture in air in powder form poses a flamm /explo-sive dust hazardreactive with oxidizing agents, bases, and strong acids NFPA Health 1, Flammability 1, Reactivity 0 Emersol 213 [Emery Oleochems ]... 

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