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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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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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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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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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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Tetracaine hydrochloride is used for mucosal floor anesthesia, conduction anesthesia, epidural anesthesia, and subarachnoid anesthesia; Used for ophthalmic floor anesthesia, barring constricting blood vessels, detrimental corneal epithelium, and growing intraocular pressure.nameTetracaine hydrochlorideCAS NO136-47-0Molecular formulaC15H25ClN2O2melting point149°Cdensity1.1279 (rough estimateStorage conditions2-8°Csolubilityalcohol: solublesoluble 40 parts of solventformneatcolourWhite to Almost whiteSOLUBLESoluble in water at 50mg/ml
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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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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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applicationNickel acetate is frequently used as a metallic catalyst in natural chemistry. Commercialized nickel acetate is frequently its hydrate, which can be used to catalyze coupling reaction, discount reaction, etc. It is extensively used in metallic natural reaction, nickel plating, metallic coloring, and drug molecule preparation.Mainly used as mordant and additionally for electroplatingStorage precautions: Store in a cool and ventilated warehouse.
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NameAluminum tripolyphosphateMain ingredientsaluminum tripolyphosphate and its modified substances.Anti rust geneP3O105-Aluminum tripolyphosphate is a new era of pollution-free white rust resistant pigment and an best substitute product for lead and chromium primarily based poisonous rust resistant materials. Since its launch in 1993, this product has been utilized and examined via over a hundred influential paint factories (institutes) in China.
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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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Isooctyl salicylate (also regarded as 2-ethylamyl salicylate) is an necessary chemical product. Its look is colorless to faded yellow obvious liquid with a barely aromatic smell. It absorbs UVB (out of doors ultraviolet mild in Chinese) and is broadly used in perfume, soap, sunscreen cosmetics, and medicinal drug industries. It can additionally be used as an natural solvent and natural synthesis intermediate.
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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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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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nameTrilostaneCAS NO13647-35-3Molecular formulaC20H27NO3molecular weight329.43melting point264 °Cboiling point467.02°C (rough estimate)density1.1213 (rough estimate)Storage conditions2-8°Cformpowdercolourwhite to tan
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Melting Point2-4 °C (lit.)Boiling Point90 °C (lit.)Density1.069 g/mL at 25 °C (lit.)Vapor Density3.1 (vs air)Vapor Pressure18 mm Hg ( 21.1 °C)Refractivityn20/D 1.368(lit.)Flash PointStore below +30°C.Although phosgene has excessive reactivity, its fairly poisonous and corrosive byproducts pose significant environmental strain and will progressively be phased out; DMC has a comparable nuclear response response center.
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Main purposeEthylene glycol dimethyl acrylate is frequently used in the plastic and rubber industries as a crosslinking agent for ethylene acrylic copolymers, ABS, acrylic sheets, pipes, glass fiber bolstered polyester, PVC, ion trade resins, smokeless powder encapsulation polymerization, glazing, etc. is additionally used as a polymer in copolymerization, which will increase hardness, warmness resistance, climate resistance, solvent resistance, and friction resistance.
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nameClorsulonCAS NO60200-06-8Molecular formulaC8H8Cl3N3O4S2molecular weight380.66melting point194-203°Cboiling point651.7±65.0 °C(Predicted)density1.800±0.06 g/cm3(Predicted)Storage conditionsKeep in dark place,Inert atmosphere,2-8°CformneatcolourWhite
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nameVildagliptinCAS NO274901-16-5Molecular formulaC17H25N3O2molecular weight303.4boiling point531.3±50.0 °C(Predicted)density1.27flash point275.1℃Storage conditionsKeep in dark place,Inert atmosphere,Store in freezer, under -20°CformsolidcolourWhite
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nameTopiroxostatCAS NO577778-58-6Molecular formulaC13H8N6molecular weight248.24boiling point594.7±60.0 °C(Predicted)density1.45±0.1 g/cm3(Predicted)Storage conditionsStore at -20°CsolubilityDMSO : 23.5 mg/mL (94.67 mM; Need ultrasonic and warming)Acidity coefficient (pKa)7.47±0.10(Predicted)formPowder
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nameL-carnitineCAS NO541-15-1Molecular formulaC7H15NO3molecular weight161.2melting point197-212 °C(boiling point287.5°CStorage conditionsStore below +30°C.formCrystals or Crystalline PowdercolourWhitepH value6.5-8.5 (50g/l, H2O)
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Name3-ChloropropiophenoneCAS NO936-59-4Molecular formulaC9H9ClOmelting point48-50 °Cdensity1.1115 (rough estimate)flash point>230 °FStorage conditionsInert atmosphere,Room TemperaturesolubilitySolidcolourOff-White to Pale YellowSOLUBLEInsoluble
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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.
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
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.
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.
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).
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