Hydroxypropylmethylcellulose-manufacture,factory,supplier from China

(Total 24 Products for Hydroxypropylmethylcellulose)
Hypromellose (Hypromellose), also called hypromellose, is one of the non-ionic cellulose mixed ethers.
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Can gradually decompose, moist and high temperatures can accelerate decomposition. Can be decomposed by ethanol and silver ion.White crystalline powder.
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Appearance and properties: white or almost white fibrous or granular powder Density: 1.39 g/cm3 Solubility: almost insoluble in absolute ethanol, ether, acetone; swelling in cold water into a clear or slightly dirty colloidal solution Stability: The solid is flammable and incompatible with strong oxidants.
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Solubility: insoluble in water, soluble in most organic solvents such as alcohol, ether.
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Aspirational antioxidants should have the following conditions: ①Should have high anti-oxidation ability; ②Good compatibility with resin, no precipitation; ③Good processing function, non-volatile and non-decomposing at the processing temperature of high polymer; ④Good resistance to extraction, insoluble in water and oil; ⑤The color of itself is best to be colorless or light-colored, so as not to pollute the product; ⑥Non-toxic or low-toxic; ⑦Low price. In fact, any kind of antioxidant can not fully meet these conditions.
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Acrylic acid has a chemical formula of C3H4O2 and a molecular weight of 72.06.
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Titanium dioxide is an inorganic, chemical formula TiO2, white solid or powdered amphoteric oxide, molecular weight 79.9, has non-toxic, optimal opacity, optimal whiteness and brightness, is considered to be the best in the world today A white pigment.
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Amino -alumanate pesticide is a synthetic pesticide developed after organic phosphate. Its general formula is RO (C) NRR. Amino -aminate pesticides generally have no special odor, stable in acidic environments, alkali decomposition, and most varieties are lower toxicate than organic phosphate
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citric acid is without problems soluble in water and ethanol, its solubility is 59% at 20℃, and the ph of its 2% aqueous solution is 2.1.
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The lactate dehydrogenase is converted to a left lactic acid during the fermentation process. Lactic acids are constantly occurring in general metabolism and motion, but its concentration generally does not rise. Only in the lactic acid occurs, lactic acid cannot be transported in time to increase. The lactic acid transport speed is affected by a series of factors, and includes a monocarboxy-dient, lactate dehydrogenase concentration and isomer form, and the oxidative capacity arranged.
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Melting point -70°C boiling point: 135.1°C solubility can be miscible with water and most organic solvents such as ethanol Density (D4) 0.925-0.935 The relative density (water=1) is 0.94; the relative density (air=1) 3.10 is stable Danger marks 7 (flammable liquid) and 14 (including drugs) are mainly used as solvents, as well as leather colorants, emulsifiers, stabilizers, paint thinners, paint removers, etc.
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Zinc Borate is an environmentally friendly non -halogen flame retardant. It has the characteristics of non -toxic, low -water solubility, high heat stability, small particle size, small gravity, and good decentralization. As a high -efficiency flame retardant Rubber, coatings and other fields.
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Colorless tasteless oily liquid, boiling point 343 ° C (0.101 MP), flash point (open cup) 204 ° C, freezing point -80 ° C, volatile rate 0.00009 g / cm, hour (105 ° C), hydrolysis rate 0.1% (100) ° C, 6 hours), soluble in most organic solvents. Resin compatible with polyvinyl chloride, polystyrene, vinyl chloride-vinyl acetate copolymer, nitrocellulose, ethylcellulose, polyvinyl butyal butyal. It is compatible with cellulose acetate and phrochloride cellulose.
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The toluene diisocyanate has 2,4-toluene diisocyanates and 2,6-toluene diisocyanate (TDI).
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Physical nature Colorless concierge fluids have a fierce scent. Insoluble in water, dissolved in ethanol and ether. Benzyl alcohol, paf alcohol, 2-chloroethanol, ethylene glycol, furfural, dimethylformamide and acetonitrile were dissolved at room temperature. No corrosive metal.
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Potassium hydroxide is strongly alkaline and corrosive, and its properties are similar to sodium hydroxide, which can cause burns. It can absorb water and dissolve in the air, and absorb carbon dioxide to gradually become potassium carbonate. The pH of the 0.1 mol/L solution is 13.5.
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White oblique crystals, industrial products are white or light gray lumps or rods. Easily soluble in water, emits a lot of heat of dissolution when dissolved, soluble in ethanol, slightly soluble in ether. It is deliquescent and has strong water absorption. Potassium hydroxide is strongly alkaline and corrosive, and its properties are similar to sodium hydroxide, which can cause burns. It can absorb water and dissolve in the air, and absorb carbon dioxide to gradually become potassium carbonate. The pH of the 0.1 mol/L solution is 13.5.
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Acetic acid, also called acetic acid, glacial acetic acid, chemical CH3COOH, is an organic monovic acid, which is the main component of vinegar.
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Citric acid (CA), also known as citric acid, with the molecular formula C₆H₈O₇, is an important organic acid. It is colorless crystals, odorless, has a strong acid taste, is easily soluble in water, and is a natural preservative and food additive .
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The bis-sodium sulfate solution is acidic and can be decomposed by alcohol and silver ions. It can also burn with combustibles or easy oxides to support combustion, promote fire, and even explode when it is violent.
The shape of sodium persulfate is milky white crystalline powder, which is soluble in water, and can accelerate the dissolution in wet humidity and high temperature; it can be dissolved by ethanol and silver ions, and the solubility in water at 20℃ is 549g/L; sodium persulfate is also deliquescent , In humid air and high temperature can accelerate the dissolution of sodium persulfate, release oxygen and become sodium pyrosulfate.
Sodium persulfate is a white tasteless crystal or powder, also known as high sodium sulfate. Sodium sulfate is stable at room temperature and decomposes gradually at high temperature.
Car urea is an essential product for heavy-duty diesel vehicles to meet the National IV emission standards. Vehicle urea refers to an aqueous urea solution with a urea concentration of 32.5% and ultrapure water as the solvent. The raw materials are urea crystals and ultrapure water. For diesel vehicles such as heavy trucks and passenger cars to meet the National IV emission standards, a suitable SCR system must be selected for exhaust gas treatment, and this system must use urea solution to treat nitrogen oxides in the exhaust gas.
Hydrogen peroxide is a good oxidizing bleaching agent. It is used for bleaching yarns with hydrogen peroxide. It has good whiteness, pure color and no impurities in the equipment.
In 2011, global methanol demand reached 54 million tons. In the next few years, driven by the rapid development of emerging applications, global methanol demand will soar to 85 million tons in 2015.
Sodium persulfate is a white odorless crystal or powder, additionally referred to as sodium persulfate. sodium persulfate has precise stability at room temperature and can gradually decompose.
Antifoaming agent refers to a substance that can reduce the surface tension of water, solution, suspension, etc., prevent the formation of foam, or reduce or eliminate the original foam. In the papermaking process, due to unreasonable sizing, poorly washed pulp, alkaline fillers used in acid systems, and various additives, foams will accumulate in the wet end of the papermaking system, resulting in the formation of foam dots on the paper.
Antioxidant is a kind of plastic additives that can effectively reduce the self-oxidation reaction speed of plastic materials and delay its aging degradation. It has a wide range of applications and is widely used in various polymer material products.