Filtration Media

Commonly Used Terms in the
Gas / Air / Water Filtration Media Industry

A

  • Activated Alumina

    adsorption process that uses porous, granular material with ion exchange properties.

  • Activated Carbon

    charcoal that has been heated or otherwise treated to increase its adsorptive power.

  • Adsorbents

    a substance that adsorbs another.

  • Adsorption

    is the adhesion of atoms, ions, or molecules from a gas, liquid, or dissolved solid to a surface.

  • Aluminum

    Aluminum is the most abundant metal in the earth's crust and is obtained mainly from bauxite. Its lightness, resistance to corrosion, and strength (esp. in alloys) have led to widespread use in domestic utensils, engineering parts, and aircraft construction.

  • Amine

    an organic compound derived from ammonia by replacement of one or more hydrogen atoms by organic groups.

  • Anthracite

    is a hard, compact variety of mineral coal that has a high luster. It has the highest carbon content, the fewest impurities, and the highest calorific content of all types of coal, which also include bituminous coal and lignite.

  • Arsenic Removal

    a metallic element that forms a number of poisonous compounds, arsenic is found in nature at low levels mostly in compounds with oxygen, chlorine, and sulfur.

  • Attrition

    the action or process of gradually reducing the strength or effectiveness of someone or something through sustained attack or pressure.

B

  • Bioaccumulative

    refers to the accumulation of substances, such as pesticides, or other chemicals in an organism.

  • Btex

    an acronym that stands for benzene, toluene, ethyl benzene, and xylenes.

C

  • Cadmium

    Cadmium occurs naturally in zinc ores and is obtained as a byproduct of zinc smelting. It is used as a component in low melting point alloys and as a corrosion-resistant coating on other metals.

  • Carcinogen

    a substance capable of causing cancer in living tissue.

  • Cation

    exchange occurs when two or more positively charged compounds or elements exchange places on a negatively charged host.

  • Cationic Surfactants

    are basically soaps or detergents, in which the hydrophilic, or water-loving, end contains a positively-charged ion, or cat ion.

  • Caustic Soda

    (Sodium Hydroxide) is a highly corrosive, odorless, non-flammable white solid.

  • Chemisorption

    is a kind of adsorption which involves a chemical reaction between the surface and the adsorbent. New chemical bonds are generated at the adsorbent surface.

  • Chromate

    a salt of chromic acid.

  • Chromium

    the chemical element of atomic number 24, a hard white metal used in stainless steel and other alloys.

  • Clinoptilolite

    is a natural zeolite comprising a micro porous arrangement of silica and alumina tetrahedral.

  • Combustibles

    able to catch fire and burn easily.

  • Copper

    a red-brown metal, the chemical element of atomic number 29.

  • Counterion

    the ion that accompanies an ionic species in order to maintain electric neutrality.

D

  • Desiccant

    a hygroscopic substance used as a drying agent.

  • Deterioration

    the process of becoming progressively worse.

E

  • Environmental Remediation

    refers to reducing radiation exposure, for example, from contaminated soil, groundwater or surface water. The purpose is more than just eliminating radiation sources; it is about protecting people and the environment against potential harmful effects from exposure to ionizing radiation.

F

  • Filtration Media

    two main types of filter media are employed in any chemical laboratory— Surface Filter, a solid sieve which traps the solid particles, with or without the aid of filter paper and a depth filter, a bed of granular material which retains the solid particles as it passes. The first type allows the solid particles, i.e. the residue, to be collected intact; the second type does not permit this.

G

  • Gram

    a metric unit of mass equal to one thousandth of a kilogram.

  • Granular

    resembling or consisting of small grains or particles.

  • Granules

    a small compact particle of a substance.

H

  • Hardware

    tools, machinery, and other durable equipment.

  • Hydrocarbons

    are the simplest organic compounds . Containing only carbon and hydrogen, they can be straight-chain, branched chain, or cyclic molecules.

  • Hydrostatic

    relating to or denoting the equilibrium of liquids and the pressure exerted by liquid at rest.

I

  • Impregnation

    to soak or saturate (something) with a substance.

  • Iodine

    the chemical element of atomic number 53, a nonmetallic element forming black crystals and a violet vapor.

J

K

  • Kilogram

    the SI unit of mass, equivalent to the international standard kept at Sèvres near Paris (approximately 2.205 lb).

L

  • Lead

    a heavy, bluish-gray, soft, ductile metal, the chemical element of atomic number 82. It has been used in roofing, plumbing, ammunition, storage batteries, radiation shields, etc., and its compounds have been used in crystal glass, as an antiknock agent in gasoline, and (formerly) in paints.

  • Liquid Filtration

    filtration is commonly the mechanical or physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass. The fluid that passes through is called the filtrate.

M

  • Mercury

    the chemical element of atomic number 80, a heavy silvery-white metal that is liquid at ordinary temperatures.

  • Mohs Scale

    a scale of hardness used in classifying minerals. It runs from 1 to 10 using a series of reference minerals, and a position on the scale depends on the ability to scratch minerals rated lower.

  • Molecular Sieve

    a crystalline substance (especially a zeolite) with pores of molecular dimensions that permit the passage of molecules below a certain size.

N

  • Nickel

    a silvery-white metal, the chemical element of atomic number 28.

  • Nitrates

    a salt or ester of nitric acid, containing the anion NO 3- or the group —NO 3.

O

  • Organoclay

    an organically modified phyllosilicate, derived from a naturally occurring clay mineral. By exchanging the original interlayer cations for organocations (typically quaternary alkylammonium ions) an organophilic surface is generated, consisting of covalently linked organic moieties.

  • Osmosis

    is the spontaneous net movement of solvent molecules through a partially permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides.

  • Oxidize

    combine or become combined chemically with oxygen.

P

  • Permanganate

    the general name for a chemical compound containing the manganate ion,. Because manganese is in the +7 oxidation state, the permanganate ion is a strong oxidizing agent.

  • Permeable

    allowing liquids or gases to pass through.

Q

  • Quaternary

    fourth in order or rank; belonging to the fourth order.

R

  • Refineries

    an industrial installation where a substance is refined.

  • Regeneration

    the action or process of forming of new animal or plant tissue.

  • Remediation

    the action of remedying something, in particular of reversing or stopping environmental damage.

S

  • Selenate

    a crystalline acid analogous to sulfuric acid, made by oxidizing certain selenium compounds.

  • Solubility

    the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent to form a homogeneous solution of the solute in the solvent.

  • Sorption

    absorption and adsorption considered as a single process.

  • Substrate

    the chemical of interest that is being modified.

T

  • Thiosulfate

    is an oxyanion of sulfur.

  • Toxicity

    is the degree to which a substance can damage an organism

  • Trimethyl Ammonium

    are a type of quaternary ammonium compound with three methyl groups at the nitrogen, with a more complicated carbon chain derivative at the fourth position.

U

V

  • Vapor

    a gaseous substance that is below its critical temperature, and can therefore be liquefied by pressure alone.

  • Vessels

    a hollow container, especially one used to hold liquid, such as a bowl or cask.

  • Vinyl

    denoting the unsaturated hydrocarbon radical —CH=CH 2, derived from ethylene by removal of a hydrogen atom.

W

X

Y

Z

  • Zeolite

    any of a large group of minerals consisting of hydrated aluminosilicates of sodium, potassium, calcium, and barium. They can be readily dehydrated and rehydrated, and are used as cat ion exchangers and molecular sieves.

  • Zinc

    the chemical element of atomic number 30, a silvery-white metal that is a constituent of brass and is used for coating (galvanizing) iron and steel to protect against corrosion.

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