Phosphoric acid ester salt

An aromatic phosphoric acid ester salt (lrgastab NAll, sodium salt of acyclic methylene bis[2,4-di-tert-butylphenol] phosphate) is a nucleating agent for polypropylene and a flame retardant for PC. ... 

Chem. Descrip. Phosphoric acid ester salt of a high molecular weight copolymer with pigment affinic groups UN 3082... 

Amongst heat stabilisers are copper salts, phosphoric acid esters,phenyl-3-naphthylamine, mercaptobenzothiazole and mercaptobenzimidazole. Of these, copper salts in conjunction with halides have been found particularly effective, and some automotive specifications require the use of copper for heat stabilisation. Light stabilisers include carbon black and various phenolic materials. 

The reaction mechanism outlined below for phosphorous acid esters analogously applies for the other two cases. The first step is the addition of the alkyl halide 2 to the phosphite 1 to give a phosphonium salt 3 ... 

The most commonly used stabilizers are barium, cadmium, zinc, calcium and cobalt salts of stearic acid phosphorous acid esters epoxy compounds and phenol derivatives. Using stabilizers can improve the heat and UV light resistance of the polymer blends, but these are only two aspects. The processing temperature, time, and the blending equipment also have effects on the stability of the products. The same raw materials and compositions with different blending methods resulted in products with different heat stabilities. Therefore, a thorough search for the optimal processing conditions must be done in conjunction with a search for the best composition to get the best results. 

It possesses surface-active properties in its acid form as well as in the form of its salts. In the case of 1 mol alcohol reacting with 1 mol phosphoric acid, a so-called primary or monoalkyl phosphoric acid ester with two remaining acid groups arises see Eq. (6). 

Acid ester phosphates with an alkyl chain up to C6 have little solubility whereas neutralized esters are soluble in water. In ethanol and isopropanol most of phosphoric acid esters and their salts are soluble. If the products are based on ethoxylated alcohols their solubility in water will increase as the degree of ethoxylation increases. The solubility in organic solvents like gasoline, benzene, perchlorethylene, and other apolar liquids recedes with an increase in the degree of ethoxylation but are increased by a higher alkyl chain. 

Foamability of phosphoric acid esters in aqueous solutions is in general only moderate, with the acid phosphates showing a better stability against water hardness than the alkali or amine salts. 

Emulsions containing a water-solubile herbicide salt and a herbicide soluble in an organic solvent are prepared by a mixture of water, dioctyl phthalate, and isophorone. In this case ethoxylated poly ary lphenol phosphate neutralized with triethanolamine and ethoxylated acid phosphoric acid esters is used as emulsifier [231],... 

Treating petroleum oils with 3-5% calcium alkyl salicylate and 0.5-3% triethanolamine salts of phosphoric acid esters and ethoxylated dodecyl alcohol increases oxidation-thermal stability at 180-200°C in the manufacture of oil for metal parts quenching. The agent provides also short-term anticorrosion protection of the hardened articles [261]. Phosphoric acid salt alkyl esters are used in anticorrosives and aqueous dispersions in waterborne polyester coatings for metals [244]. 

A mixture of monolauryl phosphate sodium salt and triethylamine in H20 was treated with glycidol at 80°C for 8 h to give 98% lauryl 2,3-dihydro-xypropyl phosphate sodium salt [304]. Dyeing aids for polyester fibers exist of triethanolamine salts of ethoxylated phenol-styrene adduct phosphate esters [294], Fatty ethanolamide phosphate surfactant are obtained from the reaction of fatty alcohols and fatty ethanolamides with phosphorus pentoxide and neutralization of the product [295]. A double bond in the alkyl group of phosphoric acid esters alter the properties of the molecule. Diethylethanolamine salt of oleyl phosphate is effectively used as a dispersant for antimony oxide in a mixture of xylene-type solvent and water. The composition is useful as an additive for preventing functional deterioration of fluid catalytic cracking catalysts for heavy petroleum fractions. When it was allowed to stand at room temperature for 1 month it shows almost no precipitation [241]. 

Table IV gives the Rf values determined under these conditions. Figure 3 shows the chromatograms of the reaction products of the re-esterification of a number of plasticizers. It is obvious that the method is suitable for identifying the alcohol components of all frequently used ester types. Difficulties have been met with phenolic components although they are present primarily in phosphoric acid esters. To identify these, evaporate to dryness a few drops of the reaction mixture of an alkaline saponification and mix this with a bit of the precipitated alkali salt. Add this residue to 10 to 20 drops of chloroform and gradually evaporate it repeat...

Figure 8. Top. Negative ions formed by laser desorption from Na-salt of hesperidin phosphoric acid ester using pulsed CO2 laser. Bottom. Dissociation upon irradiation with a cw CO2 laser. Experimental conditions are identical to those of the top spectrum. (Reproduced from ref. 18. Copyright 1987 American Chemical Society.)...

The ash content of soybeans is relatively high, close to 5 percent. The ash and major mineral levels in soybeans are listed in Table 5-7. Potassium and phosphorus are the elements present in greatest abundance. About 70 to 80 percent of the phosphorus in soybeans is present in the form of phytic acid, the phosphoric acid ester of inositol (Figure 5-5). Phytin is the calcium-magnesium-potassium salt of inositol hexaphosphoric acid or phytic acid. The phytates are important because of their effect on protein solubility and because they may interfere with absorption of calcium from the diet. Phytic acid is present in many foods of plant origin. 

SYN BIS(2-ETHYLHEXYL) ESTER PHOSPHOROUS ACID CADMIUM SALT... 

BIS(2-ETHYLHEXYL) ADIPATE see AEOOOO BIS(2-ETHYLHEXYL)-1,2-BENZENEDICARBOXYLATE see DVL700 BIS(2-ETHYLHEXYL) ESTER PHOSPHOROUS ACID CADMIUM SALT see CAD500 BIS(ETHYLHEXYL) ESTER of SODIUM SULFOSUCCINIC ACID see DJLOOO BIS(2-ETHYLHEXYL) FUMAIUATE see DVK600 BIS(2-ETHYLHEXYL)HYDROGEN PHOSPHATE see BJR750... 

PHOSPHORIC ACID DIMETHYL-p-(METHYLTHIO)PHENYL ESTER see PHD250 PHOSPHORIC ACID, DISODIUM SALT see SJH090 PHOSPHORIC ACID, ISOPROPYL ESTER see PHE500... 

PHOSPHORIC ACID, TRISODIUM SALT see SJH200 PHOSPHORIC ACID, TRITOLYL ESTER see TNP500 PHOSPHORIC BROMIDE see PHR250 PHOSPHORIC CHLORIDE see PHR500 PHOSPHORIC SULFIDE see PHSOOO PHOSPHORIC TRIS(DIMETHYLAMIDE) see HEKOOO PHOSPHOROCHLORIDOTHIOIC ACID-0,0-DIMETHYL ESTER see DTQ600 PHOSPHORODICHLORIDIC ACID, ETHYL ESTER see EOROOO... 

PHOSPHOROUS ACID, BERYLLIUM SALT see BFSOOO PHOSPHOROUS ACID DIMETHYL ESTER see DSG600 PHOSPHOROUS ACID, TRIPHENYL ESTER see TMU250... 

Oxiranes can be converted to dialdehydes with hydrogen peroxide in the presence of a boric acid ester or phosphoric acid ester.The base-catalyzed oxidation of oxirane and alkyl-substituted oxiranes with fcA-r-butylhydroperoxide has been reported. With increased substitution the molecule undergoes fragmentation. With DMSO in the presence of terf-butylhydroperoxide and strong acids, a-ketols are formed via a sulfonium salt (Eq. 156). ... 

Ph3rtin.—In the latter it is present in combination as a substance known as phytin. This substance is a calcium or magnesium salt of a hexa-phosphoric acid ester of inositol. It is the compound in which most of the phosphorus present in seeds is contained. 

Catalytic activity of rare earth elements (i.e., lanthanides, symbol Ln) in homogeneous catalysis was mentioned as early as 1922 when CeCls was tested as a true catalyst for the preparation of diethylacetal from ethanol and acetaldehyde [1]. Solutions of inorganic Ln salts were subsequently reported to catalyze the hydrolysis of carbon and phosphorous acid esters [2], the decarboxylation of acids [3], and the formation of 4-substituted 2,6-dimethylpyrimidines from acetonitrile and secondary amines [4]. In the meantime, the efficiency of rare earth metals in heterogeneous catalysis, e. g., as promoters in lanthanide (element mixtures)-... 

Thiamine monophosphate ester phosphoric acid salt Urn-beon. Ci3H N408PjS mol wt 442.35. C 32.58%, H 4.56%, N 12.67%, O 28.94%, P 14.00%, S 7.25%. Obtained by boiling an aq soln of thiamine triphosphoric acid ester for 2 hrs Velluz et al.. Bull. Soc. Chim. France 15, 871 (1948) from thiamine phosphoric acid ester chloride hydrochloride by ion exchange Zima et al., E. Merck s Jahresber. 67, 10... 

A large number of inorganic layer crystals such as micas, sodium silicates, niobate, uranate, vanadate, titanate, zirconium phosphate, graphitic acids, crystalline silicic acids, vanadium oxyhydrate, calcium phosphoric acid esters, and titanium disulfide develop alkyl crystals between their rigid crystal layers by ion exchange with, for example, alkyl ammonium salts and by intercalation inorganic... 

Heat stabilizers include copper salts, phosphoric acid esters, mercaptobenzothiazole, mercaptobenzi-midazole, and phenyl-fi-naphthyl-amine. Among light stabilizers are carbon black and various phenolic materials. Self-lubricating grades of nylon which are of value in some gear and bearing applications incorporate lubricants such as molybdenum disulfide (0.2%) and graphite (1%). 

Chem. Descrip. Sol n. of an alkylolammonium salt of acidic phosphoric acid esters and ketoxime in isobutanolArylene/water (10/6/1)... 

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