Corrosive material solid

Combustible liquids Oxidizers Organic peroxides Corrosive materials (solid and liquid)... 

Vertical Pressure Leaf Filters are essentially the same as Horizontal Plate Filters except for the orientation of the filter elements which are vertical rather than horizontal. They are applied for the polishing slurries with very lov solids content of 1-5% or for cake filtration with a solids concentration of 20-25%. As with the horizontal plate filter the vertical leaf filters are also well suited for handling flammable, toxic and corrosive materials since they are autoclaved and designed for hazardous environments when high pressure and safe operation are required. Likewise, they may be readily jacketed for applications whenever hot or cold temperatures are to be preserved.The largest leaf filters in horizontal vessels have a filtration area of 300 m and vertical vessels 100 m both designed for an operating pressure of 6 bar. 

Indicate, if known, preferred bag material that will withstand environment, e.g., fibers of glass, polyester, Teflon , Nomex , polypropylene, polyethylene, cotton, wool, nylon, Orion , Dacron , and Dynel . The type of weave of fiber should be recommended by the manufacturer. The fabrics may be felted or woven [47,48] in weaves of plain, satin, or twill, and should be resistant to any corrosive material in the solid particles or the gas stream. 

Pulping liquors. Pulping liquor, also called black liquor, is a corrosive material used to dissolve wood chips for the manufacturing of paper and other materials. To promote waste minimization and recycling, U.S. EPA excluded pulping liquors from the definition of solid waste if they are reclaimed in a recovery furnace and then reused in the pulping process. If the liquors are recycled in another way, or are accumulated speculatively, they are not excluded. 

Specific types of relief devices are chosen for specific applications, such as for liquids, gases, liquids and gases, solids, and corrosive materials they may be vented to the atmosphere or vented to containment systems (scrubber, flare, condenser, incinerator, and the like). In engineering... 

Skin-Contact Toxicity Data for acute (short-term) exposures of the skin to corrosive and toxic liquids, solids, and gases are extremely limited, particularly where the consequences are severe or fatal injury and the available data may not be useful, from an engineering standpoint. For example, the skin toxicity of hydrogen peroxide to rats is stated as 4060 mg/kg, but the skin area and duration of exposure are not stated. Thus, it is not possible (with the available data) to estimate the relationship among percent of body surface exposed to a corrosive material, the concentration of the corrosive material, the duration of exposure (before removal of the corrosive material), and the severity of the effect. 

SBA is a colorless, high boiling point (212°F) liquid with a pleasant odor. TBA, on the other hand, is a white solid (melting point is 78°F) with a camphor-like odor. Both alcohols are traded as technical grade (99% purity) and need a hazardous (corrosive) materials label. 

A strong corrosive effect can be caused by rainwater dripping off copper conductors onto some metals such as zinc or lead which are often used on buildings. Dissimilar metals should be avoided as far as possible, and one should be aware that stranded materials are more severely attacked by corrosion than solid conductors. 

Dry solid calcium hypochlorite contains 65% available chlorine and is readily soluble in water. The chemical is available in 0.9-, 2.3-, 3.6-, and 15.9-kg (2-, 5-, 8-, and 35-lb) cans and 362.9-kg (800-lb) drums, which are usually resealable. Calcium hypochlorite is a corrosive material with a strong odor and requires proper handling. 

Clinical laboratories deal with each of the nine classes of hazardous materials. These are classified by the United Nations (UN) as (1) explosives, (2) compressed gases, (3) flammable liquids, (4) flammable solids, (5) oxidizer materials, (6) toxic materials, (7) radioactive materials, (8) corrosive materials, and (9) miscellaneous materials not elsewhere classified. Shipping and handling of Class (6) toxic materials,... 

Chemical Composition. With regard to chemical composition, feed materials containing only carbon, hydrogen, oxygen, and nitrogen (CHON) are readily treated without difficulty from corrosion or solids separation. The presence of... 

Chemical and electrochemical processes that cause materials corrosion usually involve both reduction-oxidations and acid-base reactions. The reduction-oxidation reaction is dependent on the electron energy level of the particles involved in the reaction, and hence managing the electrode potential of corroding materials may control the corrosion reaction. The acid-base reaction, on the other side, is determined by the HSAB characteristics (hard and soft acids and bases) of the particles involved in the reaction. It is mainly through the acid-base property that the environmental substances such as aggressive salts affect the corrosion of solid materials. 

DISCONTINUOUS VACUUM FILTERS. Pressure filters are usually discontinuous vacuum filters are usually continuous. A discontinuous vacuum filter, however, is sometimes a useful tool. A vacuum nutsch is little more than a large Buchner funnel, 1 to 3 m (3 to 10 ft) in diameter and forming a layer of solids 100 to 300 mm (4 to 12 in.) thick. Because of its simplicity, a nutsch can readily be made of corrosion-resistant material and is valuable where experimental batches of a variety of corrosive materials are to be filtered. Nutsches are uncommon in large-scale processes because of the labor involved in digging out the cake they are, however, useful as pressure filters in combination filter-dryers for certain kinds of batch operations. ... 

In many CVD processes, toxic, explosive, and corrosive materials are produced as one component of the vapor phase reaction co-product. In order to remove them prior to atmospheric venting, scrubbers are employed, which must be appropriate for the process used. For example, halides frequently are neutralized in a water scrubber. Carbon monoxide and hydrogen often are burnt. Arsine generally is removed by heating the exhaust gas in a cracking furnace. Charcoal canisters often are used to absorb vapor phase species. Sulfur has been employed to getter thallium. Very fine particle filters also are used to catch a diversity of solids entrained within the exhaust stream. 

A corrosive material is a liquid or solid that causes visible destruction or irreversible alterations in human skin tissue at the site of contact or in the case of a leakage from its packaging a liquid that has a severe corrosion rate on steel (49CFR 173.240(a)) . Defined in this manner, a liquid must be evaluated... 

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