polyvinyl alcohol-manufacture,factory,supplier from China

(Total 24 Products for polyvinyl alcohol)
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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Polyvinyl alcohol resin (PVA) aqueous answer has awesome moldability and emulsifying properties, forming a movie with amazing adhesion, solvent resistance, friction resistance, tensile strength, and oxygenbarrier properties.Solubility: Soluble in water, typically heated to 65-75 ℃ for whole dissolution. Insoluble in gasoline, kerosene, vegetable oil, benzene, toluene, dichloroethane, carbon tetrachloride, acetone, ethyl acetate, methanol, ethylene glycol, etc. Slightly soluble in dimethyl sulfoxide.
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Melting point: 165-185 ℃Density: 1.08g/cm3Refractive index: 1.488 (20 ℃)Water absorption rate: no longer extra than 0.4%Softening temperature: 60-65 ℃Glass transition temperature: 66-84 ℃ (varies relying on diploma of polymerization)Solubility: Soluble in most natural solvents such as alcohols/ketones/ethers/esters, insoluble in carbon hydrocarbon solvents [2]Application Editing1.
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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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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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Nickel chloride can take part in the response as a moderate Lewis acid, catalyze the coupling reaction, and coordinate with metallic hydride as a lowering agent to take part in the selective discount reaction. As a moderate Lewis acid, nickel chloride can realise the regioselectivity rearrangement of dienols in alcohol water solution.
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nameAdmireCAS NO105827-78-9Molecular formulaC9H10ClN5O2molecular weight255.66melting point136-144°Cdensity1.542formWhite crystallineVapor pressure2×10-7Pa (20℃)
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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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nameTetracaineCAS NO94-24-6Molecular formulaC15H24N2O2molecular weight264.36melting point41.0 to 45.0 °Cboiling point407.59°C (rough estimate)Storage conditions2-8°CAcidity coefficientpKa 8.33±0.03(H2O t = 20.0 I = 0.10 (KCl)) (Uncertain)formpowder to crystalcolourWhite to Almost whiteIntroduction: Dicaine is a white crystalline or crystalline powder, odorless, slightly bitter in taste, and has a tingling sensation. Soluble in water, soluble in ethanol, insoluble in ether or benzene.
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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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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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Melting point900 ° C (lit.)Density4.0g/mL (lit.)Vapor pressure0Paat20 ℃SolubilityH2O: insoluble (Chemicalbooklit.)FormPowderColor WhiteOdorOdorlessWater solubilityInsolubleinwaterThe herbal mineral of zinc phosphate is referred to as "parathionite", which has α- Type and β- There are two types.
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Melting point>300 ° C (lit.)Storage conditionsnorestrictionsSolubility H2Osoluble25mg/mLFormPowderColor index45400ColorWhite to light creamPH value5.5-7.5 (100g/l, H2O, 20 ℃)PH cost vary of acid-base indicator discoloration5.5-7.5 (100g/l, H2O, 20 ° C)water solubilitySoluble in waterSodium dodecyl sulfonate is a broadly used anionic surfactant, which is a white or barely yellow powder with houses such as decontamination, wetting, foaming, emulsification, dispersion, coagulation, degreasing and deinking.
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namePramoxine hydrochlorideCAS NO637-58-1Molecular formulaC17H28ClNO3molecular weight329.86melting point181-183°Storage conditionsInert atmosphere,Room TemperaturesolubilityChloroform (Slightly), Methanol (Slightly)formneatcolourWhite to Off-White
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nameL-ProlinamideCAS NO7531-52-4Molecular formulaC5H10N2Omelting point95-97 °Cboiling point213.66°C (rough estimate)refractivity1.4720 (estimate)Storage conditionsKeep in dark place,Inert atmosphere,Room temperaturesolubilityChloroform (Slightly), Methanol (Slightly)formPowder or GranulescolourWhite
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English nameAmmonium Zirconium HexafluorideCAS16919-31-6Molecular formula(NH4)2.ZrF6Molecular weight241.29Density1.15g/mLat 25°C(lit.)Water-solubility287.7g/L at 20℃Storage conditionsRoom TempratureAppearanceWhite crystalsmolecular structure:
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nameUlipristal AcetateCAS NO126784-99-4Molecular formulaC30H37NO4molecular weight475.62melting point183-185 ºCboiling point640.1±55.0 °C(Predicted)density1.19Storage conditions-20°Cformpowdercolourwhite to beige
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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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nameTulathromycin ACAS NO217500-96-4Molecular formulaC41H79N3O12molecular weight806.09melting point186-188℃boiling point853.8±65.0 °C(Predicted)Storage conditionsKeep in dark place,Inert atmosphere,Store in freezer, under -20°CsolubilityDMSO (Slightly), Methanol (Slightly)formSolidcolourWhite to Off-White           
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nameDapoxetine hydrochlorideCAS NO129938-20-1Molecular formulaC21H24ClNOmolecular weight341.88melting point175-1790CStorage conditionsroom tempformpowdercolourwhitesolubilityDMSO: ≥20mg/mL
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nameAlbendazoleCAS NO54965-21-8Molecular formulaC12H15N3O2Smolecular weight265.33melting point208-210 °Cdensity1.2561Storage conditions2-8°CformneatcolourWhite to Off-WhiteSOLUBLE0.75mg/L(209 ºC)
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nameMETHOPRENECAS NO40596-69-8Molecular formulaC19H34O3molecular weight310.47melting point<25℃boiling pointbp0.06 135-136°density0.9261 g/cm3 (20℃)Storage conditions0-6°CsolubilityChloroform (Slightly), Methanol (Sparingly)formneat
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nameToltrazurilCAS NO69004-03-1Molecular formulaC18H14F3N3O4Smolecular weight425.38melting point194-196°Cdensity1.54±0.1 g/cm3(Predicted)Storage conditionsSealed in dry,Room TemperatureAcidity coefficient (pKa)Sealed in dry,Room Temperatureformneat
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nameLinezolidCAS NO165800-03-3Molecular formulaC16H20FN3O4molecular weight337.35melting point176-1780CSpecific RotationD20 -9° (c = 0.919 in chloroform)boiling point585.5±50.0 °C(Predicted)Storage conditionsroom tempformpowdercolourwhite to off-white
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Relate News
Shandong Province  is known for its mild coastal monsoon climate, which makes it ideal for large-scale trials of biodegradable mulch. As a call for green agriculture, Harmony Chemical has developed 100% biodegradable agricultural mulch materials and worked with a downstream company and research institute to achieve their commercialization.
Harmony Chemical Ltd. attended ICIF China 2019 held from September 16 to 18, 2019 in Shanghai, China. The exhibition cover a series of activities based on trade talks, technical exchanges, economic cooperation, information dissemination and special conferences.
From September 6th to 8th, Harmony Chemical Ltd. were invited to exhibit at the Coatings Trends and Technology Summit (CTT).  The coatings industry is no exception in a world increasingly conscious of carbon footprints. The theme at the CTT revolved around green technology, and many companies are eagerly seeking sustainable solutions. Harmony Chemical Ltd.
Recently, the Center for the Polyurethanes Industry (CPI) announced Harmony Chemical as the finalists for this year’s Polyurethane Innovation Award. The annual honor recognizes inventive new commercial technologies within the polyurethanes industry. The award will be presented to the winner during the 65th Polyurethanes Technical Conference, September 25-27, in San Antonio, TX.    Harmony Chemical Resin is a specially designed binder based on polymeric methylene diphenylene diisocyanate (pMDI).
Through water conservation, pollution control, recycling, and water regime education, Harmony Chemical has transformed its concept of water use, optimized its allocation, and made precise efforts to accelerate water ecological changes and build an efficient and water-saving enterprise.Elkem: Innovating water ecological development models to make more responsible choicesAs a silicon-based material manufacturer with business in the whole industrial value chain, Elkem takes practical actions to feed nature and express its attitude in its daily production and R&D.Renewable hydropowerThe plants
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