Ammonium dihydrogen phosphate

Regeneration was based on removing ammonium dihydrogen phosphate, formed in hydrogenolysis of benzocaine, from the catalyst. The catalyst was... 

Those based on the reaction between magnesium oxide and ammonium dihydrogen phosphate (ADP), often in the presence of sodium tripolyphosphate (STPP), which is mixed with water (El-Jazairi, 1982 Abdelrazigeta/., 1984 Abdelrazig, Sharp El-Jazairi, 1988, 1989). 

Cement formation with ammonium dihydrogen phosphate... 

The reaction between MgO and ammonium dihydrogen phosphate (ADP) in aqueous solution yields struvite, MgNH4P04. bHjO, and schertelite, Mg(NH4)2(HP04)2.4H2O, as the main reaction products. Both may be regarded as cementing species. Only minor amounts of MgO are consumed during these reactions as it is present in excess. The reaction is exothermic. Sodium tripolyphosphate (STPP) or borax may be added to retard the reaction. The main course of the reactions may be represented thus ... 

Figure 42. Breakdown voltages for A1 anodized in (1) ammonium borate, (2) ammonium adipate, (3) potassium hydrogen phthalate, and (4) ammonium dihydrogen phosphate.285...

Because of the relatively large dispersion from the electrons compared with the almost constant refractivity of the neutrals and the negligible contribution of the ions, it is possible, with simultaneous measurements at two different wavelength, to determine independent values of the density of electrons and of the nonelectronic components in the plasma 274). Alcock and Ramsden 275) used the light from a giant-pulse ruby laser and its second harmonic generated in an ADP-crystal (ammonium dihydrogen phosphate) to probe a pulsed plasma and its time-dependent density in a Mach-Zehnder interferometer. 

Synonyms ammonium dihydrogen phosphate ammonium hiphosphate primary ammonium phosphate... 

Hydrogen positions have been found in the tetragonal phase of ammonium dihydrogen phosphate, by neutron diffraction [6). The interesting feature of the O—H 0 bonds here is that the hydrogens do not lie on a line connecting the two O s. H-bond participation in the mechanism of the antiferroelectric transition at 148°K [7] is discussed. 

In addition to natural quartz. Rochelle salts, and tourmaline, synthetic crystals, such as ethylenediamine tartrate (EDT), dipotassium tartrate (DKT), and ammonium dihydrogen phosphate (ADPj have varying suitability as piezoelectric elements. While Rochelle salt has a greater piezoelectric effect than any other crystal, it has the disadvantage uf a greater sensitivity to temperature change than quartz. EDT has an advantage over quartz when used in frequency-modulated oscillators because of... 

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