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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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Melting point>300 ° C (lit.)Density1.25Vapor pressure0Paat25 ℃Storage conditionsStorebelow+30 ° CSolubility450g/lFormCrystallinePowderChemicalbookAcidity coefficient (pKa)12.5 [at 20 ℃]ColorWhite to most whitePH value11.7 (110g/l, H2O, 20 ℃)Water solubility450g/L (20 º C)Guanidine carbonate is a chemical substance with the molecular system C2H10N6H2CO3.
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Polyvinylpyrrolidone, additionally recognised as PVP, is a polymer of ethylene pyrrolidone. Due to its one-of-a-kind 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 with the aid of reacting with polyphenols. By the use of this method, there are without problems residual PVP in the wine.
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N-methylpyrrolidone is referred to as NMP, molecular formula: C5H9NO, English: 1-Methyl-2-pyrrolidinone, the look is colorless to mild yellow obvious liquid, barely with the odor of ammonia, miscible with water in any proportion, soluble in ether, acetone and ester, haloalkane, fragrant hydrocarbon and different natural solvents, nearly totally combined with all solvents, boiling factor 204 ℃, flash factor ninety one ℃, sturdy hygroscopicity, steady chemic
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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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CAS NO492-37-5Boiling point260-262 °CDensity1.1 g/mL at 25 °Cflash point>230 °FStorage conditionsSealed in dry,Room TemperatureFormLiquidColourClear pale yellow to yellowpH value3 (5g/l, H2O, 20℃)SOLUBLE10 g/L (20 ºC)Molecular formulaC9H10O2
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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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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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ProjectIndicatorsAppearanceLight yellow transparent liquidActive substance content,%70 ± 2Free amine content,%≤ 2.0PH value (10% aqueous solution)4~7Filling, dipping or spray can be used as mothproof for wool fabrics; When used as a fungicide to deal with tough surfaces, it can be blended with chlorine dioxide for use
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Mercaptopropionic acid is an organic compound with the chemical formula C3H6O2S. It is a transparent liquid with a strong sulfide odor, foul odor, and toxicity.
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It is a combination of quite a number molecules with a complicated structure.Soluble in water, with proper floor activity, however with some disagreeable odor.Mainly used for the training of naphthenic acid metallic soaps, with a small quantity used in the components of low-end washing products.Used as emulsifiers, detergents, and plant boom regulators.
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Density1.13 [at 20 ℃]Vapor pressure0.317Paat25 ℃FormViscousLiquidColorGreenWater solubilityIn soluble in waterExposure limitNIOSH: IDLH10mg/m3; TWA0.015mg/m3Nickel naphthenate is an natural compound with the chemical formulation of C22H14NiO4. It is normally used as paint drier, timber preservative, water resistant agent for fabrics, insecticide and bactericide.
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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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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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nameOzagrel sodiumCAS NO189224-26-8Molecular formulaC13H11N2NaO2molecular weight250.23Storage conditionsStore at -20°CSOLUBLEWater: ≥ 44 mg/mL (175.84 mM)It is suitable for the treatment of the dyskinesia associated with vasospasm after the operation of acute thrombotic cerebral infarction and Subarachnoid hemorrhage and the improvement of the symptoms of cerebral ischemia.
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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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The conductivity of carbon black is carefully associated to its shape (especially graphite microcrystalline structure), floor properties, and particle size. The conductive mechanism of carbon black in rubber often consists of conductive channel and Field electron emission mechanism. The conductive channel mechanism is that carbon black aggregates come into contact with every different in the adhesive to structure a community like channel and behavior electricity.
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Bisphenol A polyoxyethylene ether is a chemical with the chemical system C15H16O2. (C2H4O) n.Boiling point350 ℃ [at one hundred and one 325 Pa]Density1.18 g/mL at 25 ° CVapor pressure0Pa at 25 ℃Refractive indexn20/D 1.552Flash point230 ° FWater solubility697mg/L at 20 ℃
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Density: 1.10g/cm3Melting point: 107-108 ℃Steam pressure: 49.8mm Hg at 25 ° CAppearance: Orange crimson crystalline powderSolubility: without difficulty soluble in water and ethanol, nearly insoluble in targeted nitric acidAmmonium cerium nitrate (abbreviated as CAN) is a robust oxidant with enhanced oxidizing homes underneath acidic conditions, 2nd solely to F2, XeO3, Ag2+, O3, and HN3.
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Boiling Point168-274 ° COdorat 100.00?%. mild ammoniaSOLUBLE5-10 g/100 mL at 18 ºCStabilityStable. Combustible. Incompatible with strong oxidizing agents.Introduction: N, N-bis (hydroxyethyl) coconut oil amide can be used as a surfactant.
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namePropitocaine hydrochlorideCAS NO1786-81-8Molecular formulaC13H21ClN2Omolecular weight256.77melting point168-170°CStorage conditions2-8°CsolubilityFreely soluble in water and in ethanol (96 per cent), very slightly soluble in acetoneformneatcolourWhite to Off-WhitePrilocaine hydrochloride is a kind of local anesthetic of aminoamide. Pirocaine is commonly used in dentistry. Procaine is also often used in combination with Lidocaine as a preparation for skin anesthesia (Lidocaine/Procaine or EMLA) to treat sensory abnormalities and other conditions.
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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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Melting point 1204 ° CDensity2,52g/cm3FormPowderSpecific gravity 2.52ColorwhiteWater solubilityinsolublecoldH2ChemicalbookO, decomposeinboilingH2OHydrolysis sensitivity 2: reactswithaqueousacidLithium silicate is a compound fashioned with the aid of the shape of metal lithium and silicate ions, and its alternate identify is lithium water glass. Most of them use the lithium hydroxide technique to react sodium silicate with sulfuric acid to produce hydrated silicic acid and sodium sulfate.
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