Tertiary sodium phosphate

Synonyms trisodium phosphate tertiary sodium phosphate trisodium orthophosphate tribasic sodium phosphate... 

When the hydrolysis of the salt of a polybasic acid is considered, the different H radicals must be treated separately. Thus when 1 mole of tertiary sodium phosphate, Na3P04, is dissolved in water, hydrolysis takes place very extensively as follows ... 

Give the formulas of primary, secondary, and tertiary sodium phosphates. State how the solution of each behaves with litmus. 

Antisal 4 Caswell No. 898 CCRIS 7086 Dri-Tri EINECS 231-509-8 Emulsiphos 440/660 EPA Pesticide Chemical Code 076406 HSDB 583 NSC 215202 Nutrifos STP Oakite Phosphoric acid, trisodium salt Sodium orthophosphate Sodium orthophosphate, tertiary Sodium orthophosphate, tribasic Sodium phosphate Sodium phosphate (Na3PO<) Sodium phosphate, tribasic Sodium tertiary phosphate Tertiary sodium phosphate Tribasic sodium orthophosphate Tribasic sodium phosphate Trinatriumphosphat Trisodium orthophosphate Tri-sodium phosphate Tromete TSP TSP-0. Inorganic salt For pH adjustment in food systems cleaning compounds, water treatment, textiles. Water softening agent subject... 

Baker s C. P. tertiary sodium phosphate was used. According to analysis its composition was Na3P04 l/7Na0H-12H20. No other details are given. 

Procedure. A drop of the acid test solution (not more than 1 N acidity) is mixed on a spot plate with 5 drops of 10 % tertiary sodium phosphate solution and 1 drop of rhodanine solution. In the presence of mercury a violet to pink color is formed. When very small amounts of mercury are present, a blank test should be carried out, and the result observed at once. 

Pig. 4. CD spectra in the near and far UV of apo- and heme-hemopexin. The CD spectra of rabbit apo- and heme-hemopexin (solid line and dashed line, respectively) at pH 7.4 in 0.05 M sodium phosphate buffer are shown. The increases in ellipticity in the near UV are attributable to changes in tertiary conformation leading to altered environments of aromatic residues, particularly tryptophan. The unusual positive ellipticity in the far UV is attributable to tryptophan-tryptophan interactions that are perturbed by heme binding 124, 130). This positive signal precludes analysis of the secondary structure of hemopexin using current CD-based algorithms. 

T. Graham found that a soln. of sodium dihydrophosphate gives a yellow precipitate of Ag3P04 with silver nitrate and two-thirds of the nitric acid is set free. W. Foster has measured the conductivity of dil. soln. of potassium dihydrophosphate, and F. Kohlrausch the specific conductivity. A. Joannis found that dry sodium or potassium dihydrophosphate did not absorb dry ammonia gas when the former salt was in contact with the liquid for 7 days at room temp, only insignificant amounts were absorbed. W. Windisch and W. Dietrich studied the action of boiling soln. of primary potassium phosphate with increasing proportions of calcium hydro-carbonate, and found the precipitates contained increasing proportions of tertiary calcium phosphate, with some entrained alkali. 

The orthophosphates.—Orthophosphoric acid forms three salts, normal or tertiary, secondary, and primary phosphates, according as all, two, or one of its hydrogen atoms is replaced by an equivalent radicle.26 The hydrogen atoms may be replaced by different radicles. Thus, the secondary acid salt—ammonium sodium hydrogen phosphate, also called microcosmic salt—is illustrated by the subjoined graphic formula along with the formulae for the acid and the primary, secondary, and tertiary sodium salts ... 

Two general methods may be employed in the preparation of hydroxylamine involving either the thermal dissociation of certain hydroxylamine compounds or the interaction of hydroxylamine hydrochloride suspended in an alcohol with the corresponding sodium alcoholate. The first of these methods was used both by Crismer,1 who distilled zinc chloride dihydroxylamate under reduced pressure and by Uhlenhut,2 who decomposed tertiary hydroxylamine phosphate. These procedures are extremely wasteful, owing to the instability of hydroxylamine at the temperatures required to bring about dissociation. Any hydroxylamine that is not isolated is totally lost. 

Ribonuclease A, insulin, a-lactalbumin, myoglobin Methacrylic monolith with tertiary amino functions 30% Acetonitrile in 60 mM aqueous sodium phosphate, pH 2.5 390 mm x 50 pm i.d. 290 mm effective length... 

The pickering system consists of water-insoluble inorganic solid particles and, mostly, an amphiphilic cosurfactant, also called an extender . Tertiary calcium phosphate (TCP) with an average diameter of about 0.2-0.4 xm is normally used as the inorganic powder. Sodium alkylbenzenesulfonate (ABS) is preferred as an extender [53]. 

For the hydrodimerization of butadiene with water, attempts have been made to increase the reactivity by adding acidic solids [4], salts such as sodium phosphate [5], emulsifiers [6], carbon dioxide [7], or the like, with no satisfactory results. In particular, the reaction rate increases under a carbon dioxide pressure, but carbonate ions, not carbon dioxide itself, are considered to play an important role in this effect. It is known that the carbonate ion concentration in water is very low even under a carbon dioxide pressure. If the carbonate ion is the true reactant, the reaction rate should increase with the carbonate ion concentration. Since inorganic carbonates show almost no effect, the addition of various tertiary amines having no active hydrogen, under a carbon dioxide pressure was tested [8]. Diamines and bifunctional amines inhibited the reaction. The reaction rate increased only in the presence of a monoamine having a p/f of at least 7, almost linearly with its concentration (Figure 3). 

Mobile phases The primary mobile phase for the pretreatment column was a mixture of 1/15 M sodium phosphate solution (adjusted to pH 3.5 with 1/15 M phosphoric acid) and methanol (48 52). The secondary mobile phase for the analytical column was the primary mobile phase containing 17.5 mM SDS. The tertiary mobile phase was the primary mobile phase containing 175 mM SDS. The flow rates of the primary, secondary and tertiary mobile phases were 0.9, 1.0 and 0.1 ml min-1 respectively. 

FIGURE 5.17 Effect of ACN concentration in the eluent on the separation of four proteins. Column, 39 cm (effective length 29 cm) x 50 p.m i.d., fused-silica capillary with porous methacrylic monolith having tertiary amino functions mobile phase, ACN (%, v/v) in 60 mM aqueous sodium phosphate, pH 2.5 applied voltage, —25 kV detection, 214 nm sample (1) ribonuclease A, (2) insuhn, (3) a-lactalbumin, and (4) myoglobin. (Reprinted from Zhang, S., et al., J. Chromatogr. A, 887,465-477, 2000. With permission from Elsevier.)... 

Sodium phosphate tribasic dodecahydrate CAS 10101-89-0 EINECS/ELINCS 231-509-8 Synonyms Sodium phosphate tertiary dodecahydrate Tribasic sodium phosphate dodecahydrate Trisodium phosphate dodecahydrate TSP-12 Classification Sodium phosphate Empirical Nas04P I2H2O Properties M.w. 380.14 dens. 1.620 Toxicology LD50 (oral, rat) 7400 mg/kg, (IP, mouse) 430 mg/kg corrosive HMIS Health 1, Flammability 0, Reactivity 1 Uses Emulsifier for processed cheese buffer for processed foods... 

Sodium phosphate tertiary dodecahydrate. See Sodium phosphate tribasic dodecahydrate Sodium phosphate tribasic... 

Synonyms dium phosphate tertiary dodecahydrate Tribasic sodium phosphate dodecahydrate Trisodium phosphate dodecahydrate TSP-12 Classification S ium phosphate Empiricid Na304P I2H2O... 

Trade Names Containing Dipentene-C Tertiary calcium phosphate. See Calcium phosphate tribasic Tetraborate, pentahydrate. See Sodium tetraborate pentahydrate 1-Tetracecanol, hydrogen sulfate, compd. with 2,2 -iminobis [ethanol] (1 1). 

The relation between free phosphoric acid content and total phosphate content in a processing bath, whether based on iron, manganese or zinc, is very important this relation is generally referred to as the acid ratio. An excess of free acid will retard the dissociation of the primary and secondary phosphates and hinder the deposition of the tertiary phosphate coating sometimes excessive loss of metal takes place and the coating is loose and powdery. When the free acid content is too low, dissociation of phosphates (equations 15.2, 15.3 and 15.4) takes place in the solution as well as at the metal/solution interface and leads to precipitation of insoluble phosphates as sludge. The free acid content is usually determined by titrating with sodium... 

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