Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Acidic phosphate

The lanthanum phosphate phosphor is usually prepared by starting with a highly purified coprecipitated oxide of lanthanum, cerium, and terbium blended with a slight excess of the stoichiometric amount of diammonium acid phosphate. Unlike the case of the aluminate phosphor, firing is carried out in an only slightly reducing or a neutral atmosphere of nitrogen at a temperature 1000° C. Also this phosphor is typically made with the addition of a flux,... [Pg.291]

Mixed mono- and dialkyl are used as catalysts for resin curing and as intermediates for fire retardants, oil additives, antistatic agents (qv), and extraction solvents. An equimolar mixture of mono- and dialkyl acid phosphates are formed at a 1 6 mole ratio of oxide to alcohol. [Pg.373]

A number of acidic phosphates which vary in their rate of reaction are available for use in a wide variety of bakery appHcations. These acids, which include monocalcium phosphate, sodium aluminum phosphate, and sodium acid pyrophosphate, release carbon dioxide at a controlled rate to give a certain fraction prior to baking the remaining fraction is released at a specific time during baking. Controlled releasing of carbon dioxide at the time it is needed can also be achieved by a mixture of different types of leavening acids. [Pg.468]

Naphthyl phosphate disodium salt [2183-17-7] M 268.1, pK 0.97, pK 5.85 (for free acid). The free acid has m 157-158° (from Me2CO/ C6H6). The free acid is crystd several times by adding 20 parts of boiling CgHg to a hot solution of 1 part of free acid and 1.2 parts of Mc2CO. It has m 157-158°. [J Am Chem Soc 77 4002 1 955.] The monosodium salt was ppted from a soln of the acid phosphate in MeOH by addition of an equivalent of MeONa in MeOH. [J Am Chem Soc 72 624 1950.] See entry on p.550 in Chapter 6. [Pg.444]

ACID BUTYL PHOSPHATE see BUTYL ACID PHOSPHATE ... [Pg.195]

Chemical Designations - Synonyms Bis-(2-ethylhexyl) Hydrogen Phosphate Di-(2-ethylhexyl) Phosphate Di-(2-ethylhexyl) Acid Phosphate Chemical Formula [CH3CH2CHiCH2CH(CiH3)CHiO]2POOH. [Pg.127]

Butter Yellow, 29 Butyl acetates, 29 Butyl acid phosphate, 29 Butyl acrylate, 29 Butyl alcohols, 29 Butyl amines, 29 Butylate, 30... [Pg.324]

Figure 1. Separation of isomeric S-deoxy D-erythro-hexulosonic acid phosphates. Figure 1. Separation of isomeric S-deoxy D-erythro-hexulosonic acid phosphates.
A suspension of lithium methoxide (prepared from 1.00 g (31.2 mmol) of methanol in 50 mL of THF and 17.7 mL (27.2 mmol) of 1.54 M butyllithium in hexane) is transferred via a cannula into a — 78 C sol ution of 5.86 g (27.1 mmol) of 2-[(/ )-(/T)-1-chloro-2-butenyl]-4,4,5,5-tctramethyl-l,3,2-dioxaborolane in 100 mL of THF. The solution is warmed, becoming homogeneous at 0 JC, and stirred for 1 h. Solvents arc removed in vacuo and the residue dissolved in 150 mL of petroleum ether (bp 40 -60 °C). This solution is washed with a citric acid/boric acid/phosphate buffer (pH 3) until the aqueous phase shows a pH of 4. The aqueous phase is extracted with 50 mL of petroleum ether (bp 40 - 60 rC). The combined organic extracts are dried over MgS04 and concentrated in vacuo to give a slightly tan oil yield 5.34 g (90%) ca. 90% ee. [Pg.316]

The 2-keto-3-deoxy-aldonic acid (phosphate) aldolases from Pseudomonas strains - 3-deoxy-2-keto-L-arabonate (F.C 4.1.2.18), 3-deoxy-2-keto-D-xylonate (EC 4.1.2.28), 3-deoxy-2-keto-6-phospho-D-gluconate (EC 4.1.2.14) and 3-deoxy-2-keto-6-phospho-D-galactonate aldolase (EC 4.1.2.21) - appear to be specific even for the acceptor components, but allow stereoselective syntheses of the respective natural substrates29. [Pg.592]

Histones are small, basic proteins required to condense DNA into chromatin. They have been first described and named in 1884 by Albrecht Kossel. There are five main histones HI, H2A, H2B, H3 andH4. An octamer of core histones H2A, H2B, H3 andH4 is located inside a nucleosome, the central building block of chromatin, with about 150 base pairs of DNA wrapped around. The basic nature of histones, mediated by the high content of lysine and arginine residues, allows a direct interaction with the acidic phosphate back bone of DNA. The fifth histone HI is located outside at the junction between nucleosomes and is referred to as the linker histone. Besides the main histones, so-called histone variants are known, which replace core histones in certain locations like centromers. [Pg.591]

Acid phosphates (e.g., orthophosphates) such as phosphoric acid or sodium dihydrogen phosphate)... [Pg.420]

NOTE Acid phosphates and SHMP may attack chemical tanks and associated equipment, so acid-resistant equipment should be specified. Alternatively, the addition of caustic up to a pH level of 8.2 to 8.3 (the production of a pink color when tested with phenolphthalein) provides adequate protection. A further alternative is to add neutralizing amine to the tank. [Pg.420]

Low pH localized corrosion resulting from acid phosphates. [Pg.466]

Coordinated phosphate control charts assume either that all contribution to pH level is derived from phosphate or that the buffering action of phosphate is sufficient to overcome the presence of other alkaline species, such as amines. Neither assumption is true. This may lead operators to conclude perhaps that a higher than anticipated bulk water pH level (caused by the presence of amine) should be rectified by the addition of MSP. This action may lower localized Na P04 ratios below 2.2 1.0, producing acid phosphate corrosion (phosphate wastage) and resulting in tube thinning and ultimately tube failure. [Pg.468]

Additionally, the combination of high temperatures (over 600 to 610 °F/320 °C, 1,550 psia/107 bar) and acid phosphates has given rise to more pronounced acid phosphate attack of both magnetite and base metal, which in modem tube steel alloy compositions may produce esoteric corrosion products such as maricite (NaFeP04). Secondary corrosion by caustic gouging (as similarly evidenced by hydrogen evolution) also occurs. [Pg.469]

Figure 10.5 Coordinated, congruent, precision control, equilibrium and non-acid phosphate programs for higher-pressure WT boilers... Figure 10.5 Coordinated, congruent, precision control, equilibrium and non-acid phosphate programs for higher-pressure WT boilers...

See other pages where Acidic phosphate is mentioned: [Pg.227]    [Pg.308]    [Pg.979]    [Pg.140]    [Pg.464]    [Pg.227]    [Pg.222]    [Pg.334]    [Pg.39]    [Pg.409]    [Pg.411]    [Pg.467]    [Pg.68]    [Pg.357]    [Pg.22]    [Pg.549]    [Pg.555]    [Pg.73]    [Pg.73]    [Pg.934]    [Pg.199]    [Pg.204]    [Pg.213]    [Pg.227]    [Pg.29]    [Pg.513]    [Pg.102]    [Pg.340]    [Pg.380]    [Pg.782]    [Pg.95]    [Pg.469]   
See also in sourсe #XX -- [ Pg.68 ]




SEARCH



1- Phosphate, 12-tungstic acid

18-Molybdic acid-2-phosphates

2-Deoxyribose 5-phosphate, acid

2-Deoxyribose 5-phosphate, acid hydrolysis

2-Octulosonic acid phosphate

2-Octulosonic acid phosphate, synthesis

24-Vanadic acid-2-phosphates

3 -phosphate acidity, radicals

3- Deoxy-D-arabino-heptulosonic acid 7-phosphate

Acetylneuraminic acid phosphate

Acid calcium phosphate

Acid magnesium phosphate

Acid sodium phosphate

Acid solutions, metal, phosphate, sulfur

Acidity constants phosphate monoesters

Acidity phosphates

Acrylic acid Ammonium phosphates

Acyl adenosyl phosphate, from carboxylic acids

Adenosine 5 -phosphate-2 -amino acid

Adenylic acid-2 -phosphate

Adipic acid dihydrazide phosphates

Amino acid decarboxylases phosphate-dependent

Amino acid glyceraldehyde-3-phosphate dehydrogenases

Amino acid metabolism pyridoxal 5 -phosphate enzymes

Amino acid phosphate derivatives

Amino acid phosphates

Amino acid pyridoxal phosphate catalysis

Amino acid racemases pyridoxal phosphate

Amino acid sequences pyridoxal phosphate

Amino acids carbamyl phosphate synthetase

Amino acids phosphate ester hydrolysis

Amino acids phosphate reactions

Anhydrous materials oxonium perchlorate, acid phosphates, arsenates, sulphates and selenates

Aromatic amino acids pyridoxal phosphate

Ascorbic acid 2-phosphates, enzymatic

Ascorbic acid phosphate

Butyl acid phosphate

Cadmium acid phosphate catalyst

Calcium Phosphate, Hydroxyapatite, and Poly(d,-lactic acid)

Calcium phosphate amino acid composition

Calcium phosphate sulfuric acid reaction with

Carboxylic Acids, Phosphate, Arsenate, and Sulfate

Chorismic acid from 5-enolpyruvylshikimate 3-phosphate

Complex Formation of Cadmium with Sugar Residues, Nucleobases, Phosphates, Nucleotides, and Nucleic Acids

D-Gluconic acid 6- phosphate

D-Glyceric acid 3-phosphate

Deoxyribonucleic acid phosphate esters

Eluents, acidic amine phosphate

Eluents, acidic amine phosphate buffers

Enolpyruvylshikimic acid phosphate

Enolpyruvylshikimic acid phosphate EPSP)

Erythrocyte acid phosphate, typing

Erythrose 4-phosphate, acid hydrolysis

Erythrose 4-phosphate, shikimic acid pathway

Fatty acids acyl phosphates

Formation of Phosphoric Acid from Phosphate Rocks

Galacturonic acid 1-phosphate

Gluconic acid 6-phosphate

Gluconic acid 6-phosphate dehydrogenase

Glucose-6-phosphate deficiency ascorbic acid

Glucuronic acid phosphate

Glucuronic acid-1 - -phosphate, substrate

Glucuronic acid-l-phosphate

Glyceraldehyde-3-phosphate dehydrogenase amino acid modification

Glyceraldehyde-3-phosphate, amino acid

Glyceric acid phosphate

Guanosine-5 -phosphate Guanylic acid

Guanylic acid 5 -phosphate

Guanylic acid, 35 -cyclic phosphate

HYBRIDIZATION WITH NUCLEIC ACID PROBES phosphate

Histamine acid phosphate

Hyaluronic Acid Carriers with Calcium Phosphate Particles

Hydroxypyruvic acid phosphate

Iodic acid phosphate

Metal-free reduction of imines enantioselective Br0nsted acid-catalyzed transfer hydrogenation using chiral BINOL-phosphates as catalysts

Methyl acid phosphate

Mevalonic acid 5-pyrophosphate 3-phosphate

Mevalonic acid phosphate

N-Acetylneuraminic acid 9-phosphate

Neuraminic acid 9-phosphate

Nicotinamide adenine dinucleotide phosphate fatty acid metabolism

Nicotinic acid adenine dinucleotide phosphat

Nicotinic acid adenine dinucleotide phosphate

Nicotinic acid adenine dinucleotide phosphate NAADP)

Nicotinic acid, nicotinamide phosphate

Nucleic acid sequencing phosphate

Nucleic acids phosphate groups

Nucleic acids phosphate transfer

Nucleic acids sugar-phosphate backbone

Nucleic acids, phosphate from, after

Nucleotides acid-labile phosphate

Nucleotides acid-stable phosphate

Octyl-phenyl acid phosphate

Organic Acid Phosphates

Pantothenic acid 4 -phosphate

Phenyl acid phosphate

Phenyl acid phosphate reagent

Phosphate acid

Phosphate acid

Phosphate coatings acid ratio

Phosphate esters acids

Phosphate esters polyphosphoric acid

Phosphate sugar — esters, acid hydrolysis

Phosphate, orthophosphoric acid

Phosphated fatty acids

Phosphates and phosphoric acid

Phosphates to Acid-soluble Compounds

Phosphates/phosphonates, acidity

Phosphatic acid

Phosphoric acid Amphetamine phosphate

Phosphoric acid alkyl phosphates

Phosphoric acid and phosphate solutions

Phosphoric acid diesters phosphate

Phosphoric acid esters 2-cyanoethyl phosphate

Phosphoric acid esters enol phosphates

Phosphoric acid esters phosphate

Phosphoric acid esters triethyl phosphate

Phosphoric acid from phosphate rock

Phosphoric acid magnesium phosphate cements

Phosphoric acid phosphate cement

Phosphoric acid phosphate rock used

Phosphoric acid phosphates

Phosphoric acid triethyl phosphate

Phosphorus acids Hydrogen phosphates

Plutonium ions from nitric acid by tributyl phosphate

Potassium acid phosphate

Potassium dihydrogen phosphate Phosphoric acid, monopotassium salt

Purple acid phosphatases phosphate complex

Pyridinium phosphates carboxylic acids

Pyridoxal Phosphate in Amino Acid Metabolism

Pyridoxal phosphate amino acid racemase

Pyridoxal phosphate amino acid reactions

Pyridoxal phosphate enzymes acids

Pyridoxal phosphate, amino acid

Pyridoxal phosphate, amino acid imines from

Pyridoxal phosphate, amino acid structure

Pyridoxal phosphate, with amino acids

Pyruvic acid 3-phosphate

Pyruvic acid enol, phosphate

Pyruvic acid phosphate, labeled with

Ribofuranoside 2-phosphate, acid hydrolysis

Ribose 5-phosphate, acid hydrolysis

Ribulose 5-phosphate, acid hydrolysis

Shikimate 3-phosphate aromatic amino acid synthesis

Shikimic acid 5-enolpyruvyl-3-phosphate

Shikimic acid Oseltamivir phosphate

Shikimic acid phosphate

Sialic acid 9-phosphate

Sialic acid-9-phosphate synthetase

Sodium Aluminum Phosphate, Acidic

Solubility Characteristics of MgO and Its Reaction with Acid Phosphates

Sugar phosphates glycerol teichoic acid

Sugar phosphates ribitol teichoic acid

Sugar phosphates teichoic acids

Sulfuric acid phosphate fertilizer

Sulfuric acid with calcium phosphate

Teichoic Acids and Poly(Alkylene Phosphates)

Tetrasodium PHOSPHORIC ACID AND PHOSPHATES] (Vol

The Biochemical Action of Arsonic Acids Especially as Phosphate

The Biochemical Action of Arsonic Acids Especially as Phosphate Analogues

Thermal Degradation of Phosphate and Phosphite-Linked Epoxy Resins Cured by Acid Anhydride

Triphosphoric PHOSPHORIC ACID AND PHOSPHATES] (Vol

Uranium from Phosphate Ores and Wet Phosphoric Acid

© 2019 chempedia.info