Hydrate mixed

Triazole has been prepared by the oxidation of substituted 1,2,4-triazoles, by the treatment of urazole with phosphorus pentasulfide, by heating equimolar quantities of formyl-hydrazine and formamide, by removal of the amino function of 4-amino-l,2,4-triazole, by oxidation of l,2,4-triazole-3(5)-thiol with hydrogen peroxide, by decarboxylation of 1,2,4-triazole-3(5)-carboxylic acid, by heating hydrazine salts with form-amide,by rapidly distilling hydrazine hydrate mixed with two molar equivalents of formamide, i by heating N,N -diformyl-hydrazine with excess ammonia in an autoclave at 200° for 24 hours, and by the reaction of 1,3,5-triazine and hydrazine monohydrochloride. ... 

Chloral Hydrate. Mix chloral with one fifth its weight of water and the mixture slowly solidifies to a crystalline mass of chloral hydrate. 

Magnesium carbonate (MgC03) varies from dense material used in magnesite bricks to the very low density hydrated mixed carbonate-hydroxides [4MgC03 Mg(0H)2-5H20] and [3MgC03Mg(0H)2-3H20] once employed for insulation. There are also other basic carbonates on the market with variations in adsorptive index and apparent density. Many of these are employed as fillers in inks, paints, and varnishes. 

Richmond and Smith examined maize grits and showed extremely nonlinear increases of pressure and temperature along the barrel. Within the first two-thirds of the barrel length, the grits are hydrated, mixed and compacted, and pressures remain low. After compaction, pressures and temperature rise rapidly to 100°C and >40 psi and result in a transformation to a starch continuum with embedded granules whieh... 

AX X(final) -X(Initial). Subscript attached to A to denote lype of process diss (dissociation), hydr (hydration), mix (mixing), r (reaction), sol (dissolution), solv (solvation), subl (sublimation), trs (transfer), vap (vaporization, evaporation)... 

The first step of SAIE in the case of corrosion protection of aluminum alloys is the preparation of oxides. The top layer of an aluminum alloy is generally covered with hydrated mixed oxides. Either alkaline cleaning or a combination of alkaline cleaning and deoxidization removes major organic contaminants and this potentially unstable oxide layer. A thin layer of plasma polymer is deposited on the stabilized oxide layer thus created. 

These low-albedo materials are also relatively spectrally featureless. Comparisons with the spectra of meteorites suggest that some of this material is similar to the opaque carbonaceous material found in carbonaceous chondrites (Gaffey et al., 1993 Johnson and Fanale, 1973) and to material referred to as tholins (carbon-rich material formed in laboratory experiments containing complex solid hydrocarbons such as polycyclic aromatic hydrocarbons (Cmikshank et al., 1991)). It is generally assumed that satellite surfaces contain a mixture of ices and silicate material, probably hydrated, mixed with similar dark carbon-rich material. However, detailed identification of these constituents is difficult due to the paucity of distinctive spectral features and to the fact that even relatively small amounts of these compounds mixed with brighter silicate materials and/or ices produce a dark mixture and reduce or eliminate the spectral contrast from absorptions in the higher-albedo materials. 

Aluminium hydrate, mixed with sodium chloride and charcoal, is heated in Cl, by which a double chloride of Na and Al (2NaCl, AI,C1 ) is formed. This is then heated with Na, when Al and NaCl are produced. (The industrial process.)... 

In concrete mixes the microstracture of the interfacial zone differs markedly from that of the plain bulk paste (Lu et al., 19%). Here, ettringite is the main hydrate present, but its morphology varies, depending on the amormt of gypsum in the original cement and the conditions of hydration. Three-dimensional restraint of the hydrating mix may improve the interfacial microstracture the thickness of the interfacial zone decreases and the size of the formed crystalline hydration prodncts becomes smaller. 

Clathrate Gas hydrates Liquid hydrates, mixed Small-sized liquid... 

Alloxenic solutions are wide-spread in clathrate chemistry. These are the natural gas hydrates, mixed hydroquinone clathrates and mixed channel inclusion compounds. The conditions of their formation seem to be sufficiently simple and are in fact the same as those of the formation of the individual clathrate compound. 

Hydrazine hydrate mixed at 45-50° with o-nitrophenyl cyanide in ethanol, then Raney-Ni added gradually to keep the mixture at 40-60° by the heat of the reaction until no more gas is evolved anthranilamide. Y 98%. K. Butler and M. W. Partridge, Soc. 1959, 2396. 

Heat Calorimetry Reaction, adsorption, absorption, hydration, mixing, formation, catalysis, thermodynamics, heat capacity, kinetics,... 

Figure 4 shows the stratospheric particle zoo with all currently known or speculated transitions between diflTerent particles . Phases shown are either marked as liquid (1) or as a sulfuric acid hydrate (SAX, with X = M, T, H, etc., including the mixed hydrate MIX) or nitric acid hydrate (NAX, with X = T, D, P etc.). On the left hand side the diagram shows the stability regions of the solid phases under typical stratospheric conditions at 50 mbar (5 ppmv H2O, 10 ppbv HNO3). The right hand side of Fig. 4 shows transitions relating these phases. Thermodynamically allowed transitions that are also kinetically feasible are marked by an arrow (-+), while transitions which are thermodynamically allowed but kinetically so slow that they will not occur in the stratosphere are marked by crossed arrows ). 

Walker [1955] has shown that the thermal dehydration of vermiculite passes through a phase in which there are alternating hydrated and dehydrated layers, and this has been confirmed by Weiss and Roland [1956]. Cillery [1959] has studied the adsorption-desorption characteristics of synthetic smectites in humid atmospheres. He finds that well-defined hydrates exist at definite water vapor pressures, and between the ranges of existence of the hydrates mixed-layer phases are formed. With montmorillonite also, he finds a tendency toward the appearance of a large spacing X-ray diffraction band, indicating hydration in alternate layers. A detailed study of the low-temperature dehydration of montmorillonites and the temperature-pressure curves for montmorillonite, saponite, and vermiculite with various ions has been made by Cowley and Roy [1959]. They find the partly dehydrated phases consist of a mixed-layer structure with fully hydrated and fully dehydrated layers. 

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