Toxic solid, organic

STABREX is easier and simpler to use compared to any other oxidant available for industrial water treatment. The product is pumped directly from returnable transporters (PortaFeed Systems)17 with standard chemical feed equipment. Previously, the only practical ways to apply bromine were to oxidize bromide solutions on-site with chlorine in dual liquid feed systems, or with one of the solid organically-stabilized bromine products applied from sidestream erosion feeders. The former is cumbersome and complex, and the latter is prone to dusting and difficult to control. Other oxidants require complex handling and feed of toxic volatile gases, unstable liquids, multiple-component products, or reactive solids. Simplicity in use results in reduced risk to workers and to the environment. 

There are two solid organic compounds listed in Table 1, phenol and salicylic acid. Phenol is a low melting (41-43°C) solid with a high vapor pressure. It is a severe skin irritant in addition to being highly toxic and potentially teratogenic. Since it is normally dispensed as a liquid (with a little water), phenol is listed with the organic liquids in Table 2. 

Speciation encompasses both the chemical and physical form an element takes in a geochemical setting. A detailed definition of speciation includes the following components (1) the identity of the contaminant of concern or interest (2) the oxidation state of the contaminant (3) associations and complexes to solids and dissolved species (surface complexes, metal-ligand bonds, surface precipitates) and (4) the molecular geometry and coordination environment of the metal.5 The more of these parameters that can be identified the better one can predict the potential risk of toxicity to organisms by heavy metal contaminants. Prior to the application... 

The uniqueness of the ferritin structure arises from the metabolic requirement to organize and utilize dissolved iron at concentrations and pH levels that induce precipitation of potentially toxic solid phases. Not only is iron solubilized by micelle encapsulation, but homeostatic control is also maintained. The study of ferritin therefore provides an important example of biological control of solid state reactions that involve the formation and organization of nanometer-size inorganic solids in biological time and space. 

Wastewater treatment systems can be classified, in addition to pretreatment, as preliminary, primary, secondary, and tertiary (advanced) treatments. Pretreatment of industrial wastewater is required to prevent adverse effects on the municipal wastewater treatment plants. Preliminary treatment is considered as any physical or chemical process that precedes primary treatment. The preliminary treatment processes may consist of influent screening and grit removal. Its function is mainly to protect subsequent treatment units and to minimize operational problems. Primary treatment is defined as the physical or chemical treatment for the removal of settleable and floatable materials. The screened, degritted raw wastewater from preliminary treatment flows to the primary clarification tanks, which are part of the primary treatment facilities. Secondary wastewater treatment is the process that uses biological and chemical treatment to accomplish substantial removal of dissolved organics and colloidal materials. The secondary treatment facilities may be comprised of biological reactor and secondary clarification basins. Tertiary (advanced) wastewater treatment is used to achieve pollutant reductions by methods other than those used in primary and secondary treatments. The objective of tertiary wastewater treatment is to improve the overall removal of suspended solids, organic matter, dissolved solids, toxic substances, and nutrients. 

POTASSIUM lODATE (7758-05-6) KIO, Noncombustible solid but many chemical reactions can cause fire and explosions. A strong oxidizer. Reacts violently with many materials, including reducing agents, hydrides, nitrides, and sulfides combustible materials, organic substances, manganese dioxide, arsenic, finely divided metals or carbon materials, hydrides of alkali or alkaline earth metalss, metal cyanides, metal thiocyanates, phosphonium iodide, red phosphorus, sulfides, sulfur, xenon tetrafluoride. Forms explosive compounds with solid organic matter. Mixture of powdered aluminum forms heat-, friction-, and shock-sensitive explosive. Attacks chemically active metals (e.g, aluminum, copper, zinc, etc.). Thermal deconposition, at temperatures above 1040°F/560°C, releases toxic iodine fumes. 

STl Organic, toxic, liquid ST2 Organic, toxic, solid ST3 Inorganic, toxic, liquid ST4 Inorganic, toxic, solid... 

Pryophoric Liquid/Solid, Organic/Inorganic. A substance that may ignite in air at or below room temperature in the absence of added heat, shock or friction. All are decidedly combustible and all fume strongly on exposure to air to produce fumes that are somewhat irritating and may be somewhat toxic. lATA App. A... 

Properties Colorless, cryst. solid m.w. 86.38 dens.. 816 dec. on warming ref. index 1.3381 Toxicology Corrosive toxic target organ eyes, kidneys TSCA listed Precaution Flammable liq. 

Toxic Solid, flammable, organic. 2930 34 Triethylene Tetramine 2259 60... 

---