Nitrates classification

Guanidinium nitrate Classification Nonaromatic amide Empirical CH6N4O3 Formula NH2C( NH)NH2 HNO3 Properties Wh. gran. sol. in water, alcohol si. sol. in acetone m.w. 122.11 m.p. 206-212 C Toxicology LD50 (oral, rat) 730 mg/kg LD (skin, rabbit) > 2 g/kg harmful solid mod. toxic by ing. primary irritant severe skin and eye irritant TSCA listed... 

CAS 532-43-4 EINECS/ELINCS 208-537-4 Synonyms 3-[(4-Amino-2-methyl-5-pyrimidinyl)methyl]-4-(2-hydroxyethyl)-4-methylthiazolium nitrate Aneurine mononitrate Thiamine mononitrate Thiamin nitrate Vitamin Bi mononitrate Vitamin Bi nitrate Classification Organic compd. 

A familiar feature of the electronic theory is the classification of substituents, in terms of the inductive and conjugative or resonance effects, which it provides. Examples from substituents discussed in this book are given in table 7.2. The effects upon orientation and reactivity indicated are only the dominant ones, and one of our tasks is to examine in closer detail how descriptions of substituent effects of this kind meet the facts of nitration. In general, such descriptions find wide acceptance, the more so since they are now known to correspond to parallel descriptions in terms of molecular orbital theory ( 7.2.2, 7.2.3). Only in respect of the interpretation to be placed upon the inductive effect is there still serious disagreement. It will be seen that recent results of nitration studies have produced evidence on this point ( 9.1.1). 

SI 1996/2971 Control of Pollution (Applications, Appeals and Registers) Regulations SI 1996/3001 Surface Waters (Abstraction for Drinking Water) (Classification) Regulations SI 1996/3105 The Nitrate Sensitive Areas (Amendment) Regulations... 

When we study a solid that does not have the characteristic lustrous appearance of a metal, we find that the conductivity is extremely low. This includes the solids we have called ionic solids sodium chloride, sodium nitrate, silver nitrate, and silver chloride. It includes, as well, the molecular crystals, such as ice. This solid, shown in Figure 5-3, is made up of molecules (such as exist in the gas phase) regularly packed in an orderly array. These poor conductors differ widely from the metals in almost every property. Thus electrical conductivity furnishes the key to one of the most fundamental classification schemes for substances. 

The results obtained using this criterion are very close to reality. Two of the compounds that are known to be unstable and appear in this series, ie nitroaniline and ammonium nitrate, which have an expiosophoric group without necessarily being noted for being explosive, are classified medium risk . There are still two anomalies the far too severe classification for 1,2-dichiorobenzene, which is obviously due to the endothermic nature of the aromatic cycle Crt would be better to analyse 1,2-dichlorocyclohexane using the technique mentioned before) and on the other hand, the underestimated risk of ammonium dichromate, which is, incidentally, overestimated in the regulations as will be seen later. 

ICRP (1995) considers the experimental data on americium nitrate, chloride, citrate, and hydroxide to support classification of these compounds as either Type F or M. Americium oxides are classified as Type... 

Dyeing applications, tetrahydrofurfuryl alcohol in, 12 279 Dyeing theory, 26 394-395 Dyeing transition temperature, 9 159 Dye intermediates, 9 265-298 chemistry, 9 266-291 classification, 9 265-266 economic aspects, 9 293-295 equipment and manufacture, 9 291-293 health and safety factors, 9 295-298 obtained by nitration, 9 2 7 It obtained by sulfonation, 23 525 unit processes, 9 269-283 Dye lasers, 74 702-705 23 144 output characteristics of, 74 705 Dye-ligand affinity chromatography, 6 402 Dye liquor, 9 163 Dye manufacturing... 

ISO 3451-3 1984 Plastics - Determination of ash - Part 3 Unplasticized cellulose acetate ISO 14446 1999 Binders for paints and varnishes - Determination of the viscosity of industrial cellulose nitrate solutions and classification of such solutions ISO/ASTM 51650 2002 Practice for use of cellulose acetate dosimetry system. 

In their thoughtful 1983 review, Nielsen and coworkers noted that particles of diesel soot or wood smoke can absorb significant amounts of water. Thus, they suggested that the most plausible mechanism(s) for nitration (and possibly other electrophilic reactions) of particle-associated PAHs in ambient air may involve reactions both in a liquid film and on solid surfaces and that fundamental laboratory studies of the rates, products, and mechanisms of PAHs in polar solvents would be atmospherically relevant for reactions in the liquid films. Based on this, they proposed a classification scheme for the reactivities of key PAHs in electrophilic reactions, which was subsequently described in detail (Nielsen, 1984). 

Based on the laboratory data in Table 10.29, information on electrophilic nitrations by Dewar et al. (1956) and correlations with several spectroscopic constants, Nielsen proposed the structure-reactivity classification shown in Table 10.30 for electrophilic reactions in the environment under dark or weak lighting conditions. Classifications of several PAHs in Table 10.30 differ somewhat from their ranking in the laboratory results... 

TABLE 10.29 Half-Lives, Relative Rates of Nitration,1 and Reactivity Classifications of 25 PAHs in a Mixture of Polar Solvents b... 

Figure 7.1 Classification of explosive composition by nitration reaction...

Inorganic Adsorbents. These have two general classifications (a) inorganic salts (e.g., alkali metal nitrates and halides (45), alkaline earth halides (46), vanadium, manganese, and cobalt chlorides (47), and barium sulfate (48). (b) inorganic salts... 

Another application of tumblers is to the manufacture of mixed fertilizers, in which solid ammonium nitrate, liquid ammonia, liquid phosphoric acid, and liquid sulfuric acid are charged separately and reacted. The incidental agglomeration is excessive, however, and the process must be followed by appropriate crushing and size classification. 

The term hardness refers to the presence of calcium and magnesium salts. Temporary hardness is due to the presence of the bicarbonates of calcium and magnesium and permanent hardness to calcium and magnesium chlorides, sulphates and nitrates. Total hardness, as might be expected, is the sum of temporary and permanent hardness. Measurement is expressed as the equivalent concentration of calcium carbonate in milligrams pier litre or parts per million (m/v) and is also termed degree of hardness . Approximate classifications are... 

OFFICIAL NAMES Amyl nitrate, amyl nitrite STREET NAMES Amy, high-tech, kix, liquid gold, locker room, poppers, ram, rave, rush, snappers, thrust, TNT DRUG CLASSIFICATIONS Not scheduled, inhalant... 

Protein sequence homology suggests that sulfite oxidase and assimilatory nitrate reductase are members of the same molybdenum enzyme subfamily [31]. Consistent with this classification, the cofactors of sulfite oxidase and assimilatory nitrate reductase differ significantly from those in dmso reductase, aldehyde oxido-reductase, xanthine oxidase (see Section IV.E.), and even respiratory nitrate reductase (Section IV.D). The EXAFS of both sulfite oxidase [132-136] and assimilatory nitrate reductase [131,137,138] and x-ray studies of sulfite oxidase (chicken liver) [116] confirm that the molybdenum center is coordinated by two sulfur atoms from a single MPT ligand and by the sulfur atom of a cysteine side chain. The Movl state is bis(oxido) coordinated (Figure 14). 

In recent years the analogy between the Friedel-Crafts acylation reaction and various nitrating systems, particularly those in which Lewis acids act as catalysts, has been stressed,3 but this classification adds nothing new in principle. 

A similar test has been developed in the USA (according the deformation of a lead block, using commercial caps with 0.4-0.45 g PETN). It is advisable to classify according to test results and not, as was the custom in the USA, by the classification of NCN according to the explosive composition. As indicated above, ANFO s are not cap sensitive mixtures of finely ground ammonium nitrate containing only 2% instead of 6% of oil or wax can, however, be cap sensitive. 

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