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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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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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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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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Purpose:Shugeng Glucose Sodium is a selective Muscle relaxant, which is typically used for muscle spasticity and hypertonia.
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nameLeterMovirCAS NO917389-32-3Molecular formulaC29H28F4N4O4molecular weight572.55boiling point706.5±70.0 °C(Predicted)density1.37±0.1 g/cm3(Predicted)Storage conditionsSealed in dry,Store in freezer, under -20°Csolubility≥57.3 mg/mL in DMSO; insoluble in EtOH; insoluble in H2Oformsolid
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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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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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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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AppearanceAmber obvious liquidSolid content% ≥ 40.0Density (20 ℃)g/cm3 ≥ 1.20PH fee (1% aqueous solution)9.0-11.0Solubility15gPolyaspartic acid (PASP) belongs to a crew of polyamino acids. Polyaspartic acid is susceptible to breakage due to the motion of microorganisms, fungi, and different factors, ensuing in the degradation of environmentally pleasant ammonia, carbon dioxide, and water. Therefore, polyaspartic acid has a extensive vary of uses.
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CAS NO153-94-6Molecular formulaC11H12N2O2melting point282-285 °Cboiling point342.72°CStorage conditionsKeep in dark place,Inert atmosphere,Room temperatureformPowdercolourWhite to slightly yellowSOLUBLE11 g/L (20 ºC)stabilityStable. Incompatible with oxidizing agents.Characteristics and Functions D-neneneba tryptophan, as a non protein energetic amino acid, has specific physiological properties. It can be used as a non dietary sweetener, feed additive, and plant increase agent in the meals and feed enterprise and agriculture.
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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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Fusing Point8.2 °CBoiling Point224-226 °C (lit.)Thickness1.056 g/mL at 25 °C (lit.)Vapor pressure<1 hPa (20 °C)Refractivity22n20/D 1.472(lit.)Flash Point220 °FStorage ConditionsStore at +5°C to +30°C.Solubilitytoluene: soluble(lit.)1,3-Dimethyl-2-neneneba imidazolinone can be used as solvent in many natural synthesis and conversion reactions; Used to learn about the formation of steady functionalized hydrogenated silane double base transition metallic complexes thru photochemistry from fragrant silanes; Dipolar solvents with p
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nameAdmireCAS NO105827-78-9Molecular formulaC9H10ClN5O2molecular weight255.66melting point136-144°Cdensity1.542formWhite crystallineVapor pressure2×10-7Pa (20℃)
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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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nameLOXO-292CAS NO2152628-33-4Molecular formulaC29H31N7O3molecular weight525.6density1.36±0.1 g/cm3(Predicted)Storage conditionsStore at -20°CformA crystalline solidAcidity coefficient (pKa)14.00±0.29(Predicted)
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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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boiling point208℃Refractive index1.4350relative density1.056Molecular formulaC8H15NO4Storage conditionsKeep in dark place,Sealed in dry,Room TemperatureformViscous LiquidcolourClear light yellow to yellowCAS NO6290-05-7Molecular formulaC8H15NO4molecular weight189.21
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nameLinocaine hydrochlorideCAS NO6108-05-0Molecular formulaC14H25ClN2O2molecular weight288.82melting point75-79℃Storage conditions2-8°CsolubilityH2O: solubleformsolidcolourwhiteSOLUBLESoluble in water (50 mg/ml), chloroform, ethanol, and benzene. Insoluble in diethyl ether.
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AppearanceWhite crystalline powder, white block shape, white block shapeContent%≥ ninety nine ninety five 90Melting factor ℃128 128 128Water solubility 20 ℃ one hundred a hundred one hundred 100Water solubility60 ℃ 429 429 420PH valueshut to neutral, shut to neutral, 4% aqueous answer pH price 7.50-8.50 7.50-8.50 7.00-9.00Moisture%≤ 0.4 0.5 0.8UsageFlame retardant processing for wallpaper, fibers, carpets, curtains, and different materials.
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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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Relate News
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.
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.
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).