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Polyvinylpyrrolidone, additionally acknowledged as PVP, is a polymer of ethylene pyrrolidone. Due to its unique ranges of polymerization, it can be divided into soluble PVP and insoluble PVPP (polyvinylpyrrolidone). The relative molecular weight of soluble PVP is 8000~10000, which can be used as a precipitant to precipitate by way of reacting with polyphenols. By the usage of this method, there are effortlessly residual PVP in the wine.
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Due to the shortcomings of urea formaldehyde resin such as terrible preliminary viscosity, massive shrinkage, excessive brittleness, water resistance, handy aging, launch of formaldehyde, and air pollution of the surroundings and injury to fitness in the course of curing, it is integral to regulate it to enhance its overall performance and increase its application.
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purposeHexafluorozirconate is often used to make optical glass and fluorozirconate.Used for metallic floor therapy and cleaning, as nicely as for the manufacturing of wool, leather-based garb industry, atomic electricity industry, superior electrical materials, and refractory materials.Used for metallic surfaces and coatings.
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Melting point>300 ° CDensity1.203-1.209 g/cm3FormPowderColorWhitewater solubilitySoluble in water.Merck147668Potassium silicate is a colorless or barely yellow translucent to transparent glassy substance. It has hygroscopicity. There is a robust alkaline reaction. Dissolve in acid to precipitate silica. Slowly soluble in bloodless water or nearly insoluble in water (depending on its composition), insoluble in ethanol.
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Manganese carbonate, additionally acknowledged as manganese carbonate, has the chemical components MnCo3. Molecular weight 114.95. White hexagonal crystal or rose purple crystal. Specific gravity 3.125. Difficult to dissolve in water, soluble in dilute acids. Decompose in boiling water. At a hundred ℃, it decomposes into carbon dioxide and manganese oxide, and above 330 ℃, it decomposes to launch carbon dioxide and carbon monoxide. Roasting in air produces manganese trioxide. Roasting in oxygen generates manganese trioxide.
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Prilocaine is an amide type close by anesthetic. Its anesthetic depth and pace are similar to Lidocaine, alternatively its size is prolonged and its vasodilation have an impact on is weak. The toxicity is limit than lidocaine. Clinically used for close by anesthesia, specially fantastic for victims who hold away from the utilization of adrenaline.namePrilocaineCAS NO721-50-6Molecular formulaC13H20N2Omelting point37-38°boiling pointbp0.1 159-162°density1.0117 (rough estimate)refractivitynD20 1.5298Storage conditions2-8°CformCrystalline powderSOLUBLE6.169g/L(25 ºC)
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nameEsmolol hydrochlorideCAS NO81161-17-3Molecular formulaC16H26ClNO4molecular weight331.83melting point48-50°Cdensity1.026Storage conditions−20°CsolubilityH2O: soluble12mg/mLformbuffered aqueous solutioncolourWhite to Off-White
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nameTriisobutyl phosphateCAS NO126-71-6Molecular formulaC12H27O4Pmolecular weightv266.31boiling point~205 °Cdensity0.965 g/mL at 20 °CStorage conditionsStore below +30°C.solubility0.26g/lformOilcolourColourless
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Thermoplastic resin, hydrolyzed into polyvinyl alcohol in acid or alkaline solvents, is the main raw material for preparing polyvinyl alcohol. When molecules contain photosensitizers, they are sensitive to light and undergo decomposition reactions under the action of ultraviolet light or electron beams, exhibiting positive photosensitive resin properties. It can copolymerize with various monomers with double bonds, introducing various functional groups and possessing different properties.
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Ethyl acetate is a broadly used satisfactory chemical product with incredible solubility, fast drying, and a large vary of uses. It is a very essential natural chemical uncooked cloth and tremendous industrial solvent, and is extensively used in the manufacturing procedure of acetate fiber, ethyl fiber, chlorinated rubber, ethylene resin, acetate fiber resin, artificial rubber, coatings, and paints.
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Zirconium acetate (liquid), a colorless obvious liquid organized by way of the response of zirconium oxychloride and sodium carbonate. Widely used in industries such as medicine, cosmetics, electronics, ceramics, paint, glass, etc.Density1.279g/mLat25 ° CFormliquidWater solubility931g/Lat20 ℃InchiKeyMFFVROSEPLMJAP-UHFFFFAOYSA-JCAS datalibrary 7585-20-8 (CASDataBaseReference)EPA Chemical InformationAceticacid, Zirconiumsalt (1:?) (7585-20-8)
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Appearance white block or powderAsh content/% ≤ 0.01 0.01 0.01 0.01The softening factor is 83~143 ℃. Soluble in acetone, toluene, cyclohexane, ethyl acetate, tetrahydrofuran, dichloromethane, etc., insoluble in solvent gas and water
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Physicochemical properties: Acetylacetone zinc is a white powder with a attribute odor, secure properties, and convenient to react with oxidants. Melting factor 129-133 ℃. Easily soluble in methanol.Acetylacetone zinc can be used as an additive, inclusive of halogenated polymers, mainly polyvinyl chloride. It is the most usually used warmness stabilizer in the method of agents, and is additionally used as a catalyst.
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Mainly used in PVC molding methods such as rolling, injection, blow molding, and extrusionAs a catalyst, the paint and coating comprise DBT compounds; Soft polyvinyl chloride (PVC) profiles, whether or not they are gentle or extruded collectively with challenging PVC; Outdoor fabric are included with PVC containing DBT compounds as stabilizers on their surfaces;Pipes, drainage ditches, and home equipment used for out of doors rainwater, as nicely as protecting substances
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This product is an amide Local anesthetic. Widely used in surface anesthesia, infiltration anesthesia, conduction anesthesia, and epidural anesthesia.nameLidocaineCAS NO137-58-6Molecular formulaC14H22N2Omolecular weight234.34melting point66-69°Cflash point9℃solubilityethanol: 4 mg/mLformpowdercolourWhite to slightly yellowSOLUBLEpractically insoluble
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nameAdemetionine disulfate tosylateCAS NO97540-22-2Molecular formulaC22H34N6O16S4molecular weight766.78melting point>122°C (dec.)Storage conditionsInert atmosphere,Store in freezer, under -20°CsolubilityDMSO (Slightly, Heated), Water (Sparingly)formSolidcolourWhite to Pale Yellow
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namePrussian BlueCAS NO14038-43-8Molecular formulaC6FeN6.4/3Femolecular weight859.23density1.8Storage conditionsRoom TemperatureformPowderSOLUBLEpractically insolublesensitivenessHygroscopicstabilityStable. Incompatible with strong acids, strong oxidizing agents, ammonia. Light sensitive.
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Polyisoprene rubber (IR) is a artificial rubber compound organized through answer polymerization of isoprene monomers underneath the motion of a catalyst. It has a chemical composition, three-d structure, and mechanical residences comparable to herbal rubber, as properly as true uncooked fabric strength, simple viscosity, getting older performance, and rebound performance.
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Melting point1975 ° CBoiling point1949.9 ° C (estimated)Density5.6Refractive index2.008~2.029Flash point27 ℃Storage conditionsStoreat+5 ° Cto+30 ° CSolubility0.0016g/linsolubleFormnanopowderColorWhiteChemicalbooktopaleyellowSpecific gravity5.61Zinc oxide, additionally recognized as zinc white, is a pure white powder composed of amorphous or needle fashioned small particles.
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CAS NO204255-11-8Molecular formulaC16H31N2O8Pmelting point196-198°CsolubilityH2O: soluble30mg/mLformpowdercolourwhite to beigeSOLUBLESoluble in water (75 mM)optical activity[α]/D -26 to -36°, c = 1 in H2OPharmacological motion Oseltamivir phosphate is the drug precursor of its Active metabolite, and its Active metabolite (Oseltamivir Carboxylate) is a selective influenza virus Neuraminidase inhibitor. Neuraminidase is a glycoprotein on the floor of viruses.
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nameTofacitinibCAS NO477600-75-2Molecular formulaC16H20N6Omolecular weight312.38density1.3Storage conditions-20°CsolubilitySoluble in DMSO (up to 100 mg/ml) or in Ethanol (up to 100 mg/ml).formPale powder.Acidity coefficient (pKa)6.04±0.60(Predicted)colourOff-white
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Chemical factor structure mannequin of petroleum resin:The most commonly used petroleum resin manufacturing applications are C9 petroleum resin and C5 petroleum resin.C9 petroleum resinC9 petroleum resin mainly refers to a resinous substance formed via polymerization of olefins or cyclic olefins containing nine carbon atoms or copolymerization with aldehydes, fragrant hydrocarbons, terpene compounds, etc.C9 petroleum resin, also acknowledged as aromatic petroleum resin, can be divided into sorts such as hot polymer
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CAS NO90-15-3Molecular formulaC10H8Omelting point94-96 °Cboiling point278-280 °Cdensity1.224flash point125 °CStorage conditionsStore below +30°CsolubilitySoluble in benzene, chloroform, ether and ethanol.formCrystalline Flakescolourwhite to off-white
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Melting point27 ° CBoiling point157 ° CDensity1.17g/mLat25 ° CRefractive index n20/D1.405SolubilityMethanol (Slightly, HeaChemicalbooked), Water (Slightly)FormSolidColorWhitetoOff WhiteWater solubility>=10g/100mLat20 º CThis compound is a white crystalline powder with a petroleum like odor, flammable, and prone to moisture. It can be produced by means of sulfonation of xylene and neutralization with liquid alkali. Widely used as an auxiliary agent in the manufacturing of each day washing products.
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