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Compound Preparations

Depending on the complexity of the formulation, size of the internal mixer, and application for which the compound is intended, the mix cycle can be divided into a sequence of stages. For an all-natural-rubber compound containing 50 phr carbon black, 3 phr of aromatic oil, an antioxidant system, and a semi-EV vulcanization system, a typical Banbury mix cycle will be as follows  [Pg.463]

Stage 1 Add all natural rubber add peptizer if required. Drop into a mill at 165°C. [Pg.463]

Stage 2 Drop in carbon black, oils, antioxidants, zinc oxide, stearic acid, and miscellaneous pigments such as flame retardants at 160 C. [Pg.463]

Stage 3 If required to reduce compound viscosity, pass the compound once again through the internal mixer for up to 90 s or 130 C. [Pg.463]

Vulcanization system Semi-EV Adapted to Conventional Conventional Adapted to [Pg.464]

Stage 4 Add the cure system to the compound and mix it up to a temperature not exceeding 115°C. [Pg.449]


The zinc alkyls, of which this is an example, are vile-smelling inflammable liquids. They were the first organo-metallic compounds prepared by Frankland in 1849. With water, they decompose giving an alkane ... [Pg.418]

I owe a lot to Federica Bertondn and Giovanni Boccaletti. During their stay as Erasmus students in Groningen they brought a little bit of Italy with them (I remember some very good meals). Also from a chemical point of view their stays were successful. The compounds prepared and purified by Federica are at the basis of the work described in this thesis. The work of Giovanni has paved the way to enantioselective Lewis-acid catalysis in water, which is perhaps the most significant result of this thesis. [Pg.193]

KSb0C4H40e 324.92 compound prepared by drying KSb0C4H406 at 110 °C and storing in desiccator... [Pg.729]

Microchemical or ultramicrochemical techniques are used extensively ia chemical studies of actinide elements (16). If extremely small volumes are used, microgram or lesser quantities of material can give relatively high concentrations in solution. Balances of sufficient sensitivity have been developed for quantitative measurements with these minute quantities of material. Since the amounts of material involved are too small to be seen with the unaided eye, the actual chemical work is usually done on the mechanical stage of a microscope, where all of the essential apparatus is in view. Compounds prepared on such a small scale are often identified by x-ray crystallographic methods. [Pg.216]

T. E. Rudedge, Mcetyknic Compounds—Preparation and Substitution Reactions, Reinhold Book Corp., New York, 1968. [Pg.380]

Dibarium hexakiscyanoferrate [13821 -06-2], Ba2[Fe(CN)g], is a sparingly water-soluble compound prepared by addition of a solution of... [Pg.434]

Cuprous iodomercurate [13876-85-2] Cu2Hgl4, is a bright red water-insoluble compound prepared by precipitation from a solution of K Hgl with cuprous chloride. It is used in temperature-indicating paints because it reversibly changes color to brown at 70°C (see Chromogenic materials). [Pg.113]

Mercuric Nitrate. Mercuric nitrate [10045-94-0] Hg(N02)2, is a colorless dehquescent crystalline compound prepared by the exothermic dissolution of mercury in hot, concentrated nitric acid. The reaction is complete when a cloud of mercurous chloride is not formed when the solution is treated with sodium chloride solution. The product crystallizes upon cooling. Mercuric nitrate is used in organic synthesis as the starting material and for the formulation of a great many other mercuric products. [Pg.113]

Fast, low temperature curing mbber compounds can be prepared by initial heat prevulcanisation of the Hquid latex and are marketed commercially (Revultex, Doverstrand Corporation). Rubber deposited from these often needs tittle more heat than that required to dry the deposit, to achieve optimum tensile strength and elongation. Such compounds are often used by small companies manufacturing thin-wall dipped medical latex products, such as examination gloves, as few compound preparation facilities are needed by the dipping company. [Pg.261]

Compression Set Resistant. One property of fluorocarbon elastomers that makes them uniquely valuable to the sealing industry is their extreme resistance to compression set. Figure 4 plots compression set vs time for compounds prepared especially for compression set resistance (O-ring grades). [Pg.510]

The synthesis (60) and potent antitussive activity (61) of dimemorfan [36309-01-0] (41), D-3-methyl-/V-methylmorphinan, have been reported. This compound, prepared by a modification of the Grewe process, differs from dextromethorphan only by having a methyl group, rather than a methoxy group, in the 3 position. [Pg.523]

In isolating higher-melting compounds prepared by this method (e.g., 7-naphthylbutyric acids), the layers are separated after cooling to 50-60°, benzene is used for the extraction, and the combined solution is clarified with Norite while still wet, concentrated somewhat, and allowed to cool for crystallization. In preparing methoxylated adds such as 7-anisyl- or 7-veratryl-butyric acid some demethylation occurs and a modification is necessary. The toluene layer and extracts are mixed with an excess of dilute sodium hydroxide and the organic solvents are... [Pg.97]

As in the previous categories in this section, there are numerous compounds which have been prepared based on a sugar subunit. Examples may be found in Refs. 7,35,42-45, 57, 82-85, 117—121,175,176,193 and 208. Much of the work in these references has been reported by Stoddart and his coworkers, who have pioneered this field. As with the compounds prepared by Cram, the goal was to prepare a chiral receptor for ammonium ions which could be utilized in enzyme model studies. [Pg.52]

Tomoi, Kihara and Kakiuchi " have prepared a cryptand with a hydroxymethyl group in one of the strands and then utilized this as nucleophile in a reaction with chlo-romethylated polystyrene. The type of compound prepared by this method is illustrated in Eq. (8.16). [Pg.358]

Table 6, Perfluoroalkyl Aromatic Compounds Prepared via the Reaction of Perfluoroalkylcopper Reagents with lodo-or Bromoaromatic Compounds... Table 6, Perfluoroalkyl Aromatic Compounds Prepared via the Reaction of Perfluoroalkylcopper Reagents with lodo-or Bromoaromatic Compounds...
A. Haas, J. Kasprowski, and M. Piyka, Tellurium- and Selenium-Niti ogen Compounds Preparation, Characterization and Properties, Coord. Chem. Rev., 130, 301 (1994). [Pg.16]

Catalytic hydrogenolysis of an O-benzyl protective group is a mild, selective method introduced by Bergmann and Zervas to cleave a benzyl carbamate (>NC0-0CH2C6H5 —> >NH) prepared to protect an amino group during peptide syntheses. The method has also been used to cleave alkyl benzyl ethers, stable compounds prepared to protect alkyl alcohols benzyl esters are cleaved by catalytic hydrogenolysis under neutral conditions. [Pg.2]

Solvates are perhaps less prevalent in compounds prepared from liquid ammonia solutions than are hydrates precipitated from aqueous systems, but large numbers of ammines are known, and their study formed the basis of Werner s theory of coordination compounds (1891-5). Frequently, however, solvolysis (ammonolysis) occurs (cf. hydrolysis). Examples are ... [Pg.425]

For the preparation of triazolopyrimidines three main types of synthesis are in use. The first of these proceeds from a pyrimidine derivative (especially the 4,5-diamino derivatives) and closes the triazole ring. The second method proceeds, on the contrary, from derivatives of u-triazole to close the pyrimidine ring. The third method finally is one which yields the derivatives through substitution or replacement of substituents in compounds prepared by one of the first-named procedures. [Pg.239]

A phenyl ethanol amine in which the nitrogen is alkylated by a long chain alphatic group departs in activity from the prototypes. This agent, suloctidil (43) is described as a peripheral vasodilator endowed with platelet antiaggregatory activity. As with the more classical compounds, preparation proceeds through bromination of the substituted propiophen-one ( ) and displacement of halogen with octyl amine. Reduction, in this case by means of sodium borohydride affords suloctidil (43). ... [Pg.26]


See other pages where Compound Preparations is mentioned: [Pg.165]    [Pg.976]    [Pg.2]    [Pg.113]    [Pg.377]    [Pg.205]    [Pg.206]    [Pg.335]    [Pg.130]    [Pg.367]    [Pg.149]    [Pg.419]    [Pg.2]    [Pg.39]    [Pg.63]    [Pg.435]    [Pg.168]    [Pg.337]    [Pg.1026]    [Pg.1140]    [Pg.242]    [Pg.206]    [Pg.114]    [Pg.349]   
See also in sourсe #XX -- [ Pg.449 ]

See also in sourсe #XX -- [ Pg.207 ]




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0-Aryl compounds, preparation

1.3- Oxazine, dihydroreaction with carbonyl compounds preparation

Alicyclic compounds preparation

Alkenyl compounds, preparation

Alkyllithium compounds preparation

Allylation preparation of 1,4-dicarbonyl compounds

Allylic compounds conjugated diene preparation

Allylic nitro compounds preparation

Amino compounds, preparation

Analogs Prepared by Modification of Vitamin D and Related Compounds

Anhydro compounds preparation

Antimony compounds preparation

Aroma compounds sample preparation

Aromatic fluorine compounds preparation

Arsenic compounds preparation

Aryl nitro compounds, preparation

Assumptions compound preparation

Azo-compounds, preparation

Barium compounds preparation

Biotechnology preparations, compounding with

Biotransformations in the Preparation of Compounds Labeled with Carbon and Hydrogen Isotopes

Carbonyl compounds enol ether preparation

Carbonyl compounds preparation

Carbonyl compounds preparation, use of imine anions

Catalyst preparation compounding

Catalyst preparation compounds

Chromium compounds, cell preparation

Cluster compounds preparation

Compound Preparation, Mixture Characterisation and Process Enhancement of Particulate-Filled Polymer Compounds

Compounding preparations

Compounding preparations

Compounding sterile preparations

Compounds Prepared from Thebaine

Coordination compounds 3,5-diaryl-, preparation

Coordination compounds preparation

Copper, organo compounds preparation

Diazo compounds preparation

Diazo compounds, aliphatic, preparation

Diazo compounds, preparation reactions

Diazoalkanes, preparation with carbonyl compounds

Diazoamino compounds, preparation

Diazocarbonyl compounds preparation

Diazonium compounds, preparation

Diazonium-compounds, general preparation

Diazonium-compounds, general preparation reactions

Dimetal compounds preparation

Epoxy compounds preparation

Ethylene derivatives compounds prepared

Germanium compounds preparation

Graphite intercalation compounds preparation

Hafnium compounds preparation

Heterocyclic arsenic compounds preparation

Heterocyclic compounds sulfur-containing, preparation

Heterocyclic compounds, preparation

Interhalogen compounds first preparation

Intermediate compounds preparation

Iodosyl compounds preparation

Iron-tungsten compound, preparation

Ketones, preparation from aromatic compounds

Labeled compound preparation

Labile compounds, preparation

Labile compounds, preparation under protective conditions

Lead compounds preparation

Lithium, organo- compounds preparation

Magnesium, organo- compounds preparation

Mercuri-bis compounds, preparation

Mercury compounds, organo preparation

Metal-nitrosyl compounds preparative methods

Methods for the Preparation of Aromatic and Heteroaromatic Diazo Compounds

Methods for the Preparation of Organolithium Compounds

Microscale compound preparation

Miscellaneous preparations from other organomagnesium compounds

Model compound preparation

New Preparations of Organoboron Compounds

Nitrite ion preparation of nitro compounds

Nitro compounds, alkylation preparation

Nitro compounds, preparation

Nitrobenzene, preparation sodium compounds

Nitroso compounds preparation

Optically-active compounds, preparation

Organoaluminum compounds preparation

Organoarsenic compounds preparation

Organoboron compounds preparative methods

Organocopper compounds preparation

Organoindium compounds preparation

Organolead compound, preparation from

Organolead compounds, preparation

Organolithium compounds preparation

Organometallic compounds preparation

Organosilane compounds surface preparation

Organosilicon compounds, preparation

Organosilicon compounds, preparation stability

Organotin-nitrogen compounds preparation

Organozinc compounds preparation

Other Methods of Preparing P-C Containing Compounds

Other methods of preparing coordination compounds

Overview on the Preparation of Fluorinated Compounds

Oxygen-containing compounds preparation

PREPARATION OF CYANO COMPOUNDS

PREPARATION OF CYANO COMPOUNDS USING ALKYLALUMINUM INTERMEDIATES

PREPARATION OF DIFUNCTIONAL COMPOUNDS

Palladium, organo- compounds preparation

Parent compound preparation

Parent compound preparation protonation

Perfluoroarylmagnesium compounds preparation

Phenolic compounds sample preparation

Phenolic compounds sample preparation methods

Polyethylene glycol compound preparation

Polyhalogen compounds preparation

Preparation and Analysis of Cr(II) Compounds

Preparation and Properties of Organolithium Compounds

Preparation and Reactions of Organoboron Compounds

Preparation and Reactions of Organometallic Compounds

Preparation and Reactions of Organotin Compounds

Preparation by Reduction of Carbonyl Compounds

Preparation compounds and

Preparation deuterated compounds using

Preparation from Halogen Compounds and Metal

Preparation from Open Chain Compounds

Preparation from compounds containing

Preparation from organoalkali metal compounds

Preparation from other organomagnesium compounds

Preparation of Alcohols, Ethers, and Related Compounds

Preparation of Azo and Diazoamino Compounds

Preparation of Compounds with Marijuana Activity

Preparation of Diazo Compounds

Preparation of Diazonium Compounds

Preparation of Diboron Compounds and Their Properties

Preparation of Heterocyclic Compounds

Preparation of Labile Compounds under Protective Conditions. Chromium (II) Salts

Preparation of Monofluorinated Compounds

Preparation of Nitro Compounds

Preparation of Organoaluminium Compounds

Preparation of Organoindium Compounds

Preparation of Organolithium Compounds

Preparation of Organolithium and Organomagnesium Compounds

Preparation of Organomagnesium Compounds Grignard Reagents

Preparation of Organomanganese Compounds from Mn

Preparation of Organometallic Compounds

Preparation of Organoselenium Compounds

Preparation of Organosilicon Compounds

Preparation of Organozinc Compounds

Preparation of Phosphorus Compounds

Preparation of Polycyclic Compounds

Preparation of Radiotracers and Their Compounds

Preparation of Refractory Compounds

Preparation of Strontium Compounds

Preparation of Sugar Tetrazolium Compounds

Preparation of Sulfur Compounds

Preparation of Thermoplastic Molding Compounds

Preparation of Thioarabinofuranosyl Compounds and Use Thereof

Preparation of Trifluoromethyl Compounds

Preparation of Tritium-Labeled Compounds by Chemical Synthesis

Preparation of Tritium-Labeled Compounds by Isotope Exchange Reactions

Preparation of a-(l,2-Dithiol-3-ylidene)carbonyl Compounds

Preparation of aliphatic diazo compounds

Preparation of chiral compounds

Preparation of compound

Preparation of coordination compounds

Preparation of dialkylmagnesium compounds

Preparation of labeled compound

Preparation of labelled compounds by biosynthesis

Preparation of metal carbonyls and organometallic compounds

Preparation of model compounds

Preparation of optically-active compounds

Preparation of organoaluminum compounds

Preparation of organoboron compounds

Preparation of organocalcium compounds

Preparation of organolead compounds

Preparation of organophosphorus compounds

Preparation of organotin compounds

Preparation of organotitanium compounds

Preparation of rubber compounds based on organosiloxane elastomers

Preparation of sealants and compounds

Preparation of selected organobismuth compounds

Preparation of the Parent Compounds

Preparation of true nitroso compounds

Preparation of unsaturated nitro compounds

Preparation organoaluminium compounds

Preparation radio-labelled compounds

Preparation, Structure and Properties of Polyvalent Iodine Compounds

Preparation, Tests and Analysis of Mn(III) Compounds

Preparations and Reactions of Coordination Compounds

Preparative Extraction and Separation of Phenolic Compounds

Preparative Routes to Molecular Compounds

Preparing Alcohols from Carbonyl Compounds

Pyrroles preparation from dicarbonyl compounds

Radioactive compounds preparation

Rare earth elements, and compounds preparation

Rare earth elements, and compounds thereof preparation

Reaction Preparation of a Diazoamido-Compound

Reissert compounds preparation

Rubber compounding preparation

Salts water-soluble compounds preparation

Sample preparation volatile organic compound

Sandwich compounds, preparation

Seven-membered cyclic compounds preparation

Silicon compounds preparation

Silyllithium compounds preparation

Single-crystal preparation by means of chemical transport reactions. (Ni-Sn-S compounds as an example)

Sterile preparations, compounding ophthalmics

Strained ring compounds preparation

Sulfur compounds sample preparation

Synthetic Compounds Prepared and Tested

Tellurium compounds, preparation using

Tetrasubstituted compounds ketone preparation

Thallium organic compounds preparation

The Preparation of Compounds

Thin-film preparation compounds

Thiophenes preparation from dicarbonyl compounds

Tin, trialkylaminoreaction with carbonyl compounds preparation of enol stannyl ethers

Transmetallation in indium compound preparation

Tricyclic compound preparation from

Tricyclic compound preparation from iodide

Unsaturated compounds ester preparation

Water-soluble compounds preparation through salt formation

Zinc compounds preparation

Zinc, organo- compounds preparation

Zirconium compounds preparation

Zirconium compounds-—continued preparation

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