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Methacrylic acid is colorless crystal or transparent liquid with pungent odor. Soluble in hot water, soluble in most organic solvents such as ethanol and ether. Easily polymerized into water-soluble polymers. Combustible, there is a danger of burning in case of high heat and open flame, and it can produce toxic gas when heated.
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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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It is a solvent for a variety of coatings and a raw material for preparing dibutyl phthalate, a plasticizer. It is also used in the manufacture of butyl acrylate, butyl acetate, ethylene glycol butyl ether,
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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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It is also used in the manufacture of butyl acrylate, butyl acetate, ethylene glycol butyl ether, as an extractant for organic synthesis intermediates and biochemical drugs, and in the manufacture of surfactants.
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the crystal form of citric acid is exclusive due to distinctive crystallization conditions. it's miles barely weathered in dry air and hygroscopic in humid air. when heated, citric acid may be differentiated into diverse merchandise, that could react with acid, alkali, glycerin, and so on.
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Acrylic acid has a chemical formula of C3H4O2 and a molecular weight of 72.06.
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It is a solvent for a variety of coatings and a raw material for preparing dibutyl phthalate, a plasticizer. It is also used in the manufacture of butyl acrylate, butyl acetate, ethylene glycol butyl ether, as an extractant for organic synthesis intermediates and biochemical drugs, and in the manufacture of surfactants.N-butanol is a colorless, transparent and alcoholic liquid.
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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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Generally speaking, when the energy of the arrangement cannot be satisfied with oxygen breathing, it is arranged that the oxygen that cannot be obtained may not satisfy the quick treatment of oxygen, the concentration of lactic acid will rise. In this case, the acetone dehydrogenase cannot be converted to acetyl coenzyme a, pyruvate start-up. In this case, if the lactate dehydrogenase does not reduce the reduction of pyruvic acid as lactic acid, the composition of triphosphate is inhibited.
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Light yellow to white granular crystals (semi-circular) white to light yellow loose crystals, heating is made black.
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Ammonia, also known as Amonia water, can be written as NH3(aq), which is an aqueous solution of ammonia, colorless, transparent and has a pungent odor.
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Antioxidant is a kind of chemical substance. When it is only a small amount in the polymer system, it can delay or inhibit the progress of the polymer oxidation process, thereby preventing the aging of the polymer and prolonging its service life. It is also called " Anti-aging agent".
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Sulfur, white and shiny crystal compounds. The taste is bitter, density is 1.405, and the melting point is 180 to 182 ° C. Decomposition when it is hotter, soluble in water, can be dissolved in ethanol when heating, and is slightly dissolved in ether. During the melting, heterogeneity is partialized to form ammonium thiocyanomylisocyanomylocyne. The raw materials used to make drugs, dyes, resins, and plastic powder, and are also used as a vulcanized promoter for rubber, flotal agents for metal minerals.
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Helium is a rare gas. Its English name is Helium, and its element symbol is He. It is a colorless and odorless inert gas. Its chemical properties are not vivid. Under normal conditions, it is difficult to react with other substances.
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Industrial ammonia is an aqueous solution containing 25% to 28% ammonia. Only a small part of ammonia molecules react with water to form ammonia monohydrate, which is a weak base that only exists in ammonia.
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Appearance: Light yellow to white granular crystals (semi-circular) white to light yellow loose crystals, heating is made black. Microfincture.
Content: ≥ 85%
Melting point: 98-102 ° C
Dry loss: ≤0.2%
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Molecular weight: 65.39
Grade: 5N
MDL number: MFCD00011291
EC number: 231-175-3
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M-xylene is an organic compound with a molecular formula C8H10, a molecular weight of 106, a colorless concussion liquid, a odor like toluene.
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In the textile industry, it is used as a dispersant for fiber lubricants and chemical fiber oils, as well as automotive brake fluids, pesticide dispersants, dry cleaning agents, cutting oil solvents, organic synthesis intermediates, auxiliary solvents for mineral oil emulsions, and analytical reagents.
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Oxygen is a colorless and odorless gas, and the most common elementary form of oxygen. Melting point is -218.4°C, boiling point is -183°C. It is not easily soluble in water, and about 30mL of oxygen can be dissolved in 1L of water. Oxygen in the air accounts for about 21%. Liquid oxygen is sky blue. Solid oxygen is blue crystals.
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Ammonia is an aqueous solution of ammonia. It is colorless, transparent and has a pungent smell. So what are the properties of ammonia?
Special combination instruments, such as Kjeldahl trace nitrogen analyzer, K-D evaporation concentrator, rotary evaporation concentrator, etc., should be cleaned and protected.
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.
Acrylic paint is a one-component self-drying weather-resistant and anticorrosive paint made by advanced technology based on traditional acrylic resin and added with long-life chlorosulfonated polyethylene rubber, weather-resistant pigments and fillers, and weather-resistant additives recognized by China and foreign countries.
There were many chemical material varieties, mainly is the material in chemical industry, used to produce chemical products, chemical material can be divided into two types: organic chemical material and inorganic chemical material
When the PH cost of the ammonia water is small, the supersaturation of the reaction is small, so the obtained magnesium hydroxide has a large particle length and a quick sedimentation speed; whilst the PH price of the ammonia water is tremendously large, the response supersaturation is enormously large, and the sedimentation time of the magnesium hydroxide lengthy.
A kind of hydroperoxide decomposer that destroys the structure of peroxygen, called auxiliary antioxidant, mainly contains thioester and phosphorous acid, and is often used together with the main antioxidant.
Ammonia water, also known as Ammonia water, is a solution of ammonia dissolved in water, is colorless and transparent liquid, has a special irritating odor, volatile, corrosive, weak alkaline, unstable and flammability and other characteristics.
It is necessary to reduce the harm of human beings. The best way is scientific application. Carbon dioxide actually has two sides. On the one hand, a greenhouse effect will be generated; on the other hand, it will benefit humanity, such as use as plant gas and fruit and vegetable prevention.