Metal identification numbering

No plant-specific identification number was available for this facility. The wastewater from Plant B contains pollutants from both metals processing and finishing operations. It is treated by precipitation-settling followed by filtration with a rapid sand filter. A clarifier is used to remove much of the solids load. Table 5.14 summarizes the data on pollutant removal efficiency at Plant B. 

Tamper-proof seals are added to discourage unauthorized or undetected field adjustments. Once testing is complete, a metal identification tag (of soft lead, which is easy to imprint, yet impervious to corrosion) is attached to the SRV. The tag records the location number, set pressure, and test date. 

CAS/DOT IDENTIFICATION Organic arsenic compounds have variable CAS s. The CAS for arsenic is 7440-38-2. The DOT identification numbers for metallic arsenic and arsenic dust are 1558 and 1562, respectively. 

CAS/DOT IDENTIFICATION Soluble silver compounds have variable CAS s. The CAS for silver is 7440-22-4. There is no DOT identification number listed for silver metal in the literature. 

Trinitrophenol (picric acid), C H20H(N02)3 (see Figure 3.17), is composed of yellow crystals that are soluble in water. It is a high explosive, is shock- and heat-sensitive, and will explode spontaneously at 572T. Trinitrophenol is reactive with metals or metallic salts, and is toxic by skin absorption. The TLV is 0.1 mg/m of air. When shipped in 10 to 30% water, it is stable unless the water content drops below 10% or it dries out completely. The four-digit UN identification number is 1344 when shipped with not less than 10% water. The NFPA 704 designation is health 3, flammability 4, and reactivity 4. 

UN identification number is 1045. The NFPA 704 designation is health 4, flammability 0, and reactivity 4. The white section at the bottom of the diamond contains a W with a slash through it, indicating water reactivity. Because of the strong reactivity with other materials, it is shipped in special steel containers. The primary uses are in the production of metallic and other fluorides, fluorocarbons, fluoridation of drinking water, and in toothpaste. 

TLV of 1 ppm in air. The four-digit UN identification number is 1652. The NFPA 704 designation is health 3, flammability 2, and reactivity 1. Nitrobenzene is a nitro hydrocarbon derivative, but it is not very explosive. The primary uses are as a solvent, an ingredient of metal polishes and shoe polishes, and in the manufacture of aniline. The structure and molecular formula are shown Figure 8.29. 

A bar-coded metal tag with a unique identification number is selected for tagging equipment / components in VOC service. 

The computation of an extensive network of reaction pathways for the hydrolysis of the phosphodiester in the DNA backbone allowed the identification of the most probable reaction mechanism, as well as possible alternative mechanisms. Moreover, inclusion of additional pathways in the network, such as the nucleophilic attack of an alternative water molecule or dissociation of other, non-scissile P-0 bonds in the phosphodiester, explains the preference for the actual nucleophile and the specificity for the cleavage of P-03 over the P-05 bond. The network approach further enabled the determination of steps in the reaction that are common to several mechanisms. For example, in all pathways a change of the metal coordination number from 6 to 4 takes place, explaining why larger ions... 

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