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TDI-manufacture,factory,supplier from China
(Total 24 Products for TDI)
The toluene diisocyanate has 2,4-toluene diisocyanates and 2,6-toluene diisocyanate (TDI).
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There are two isomers of 2,4-toluene diisocyanate and 2,6-toluene diisocyanate (TDI). According to the content of the two isomers, there are three standard products in the industry: (1) TDI-65 contains 2,4-TDI65%, 2,6-TDI35%; (2) TDI-80 contains 2,4- TDI80%, 2,6-TDI20%, more common; (3) TDI-100 contains 2,4-TDI100%. Carbon dioxide occurs with water effect. Easy to work with compounds containing active hydrogen atoms. Linear polyurethane or polyurethane resin with diol effect.
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Properties: White or slightly yellow scaly crystals with unique fragrance.
Solubility: Insoluble in water, acid and alkali, but soluble in organic solvents such as alcohol, ether and benzene.
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Dibenylmethane diisocyanate, referred to as "MDI", is an organic substance, a chemical formula C15H10N2O2.
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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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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 traits: white crystals, extremely salty, non -toxic. It is easy to solverate in water, ether, glycerin and alkali, slightly soluble in ethanol, but insoluble in water -free ethanol, which is hygroscopic and easy to lump; New potassium salt is generated by reciprocating and disintegrating.
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Potassium hydroxide is a common inorganic base with a chemical formula of KOH and a molecular weight of 56.1. It is a white powder or flake solid at room temperature.
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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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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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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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Hydrogen Peroxide Solution is an aqueous solution of hydrogen peroxide.
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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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N-Methyldiethanolamine is a chemical substance with the molecular formula C5H13NO2. It contains two hydroxyl groups and one amino group.
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Glass material is referred to as a glass instrument. Many glass instruments are used in the laboratory, which is highly chemically stable, thermal stability, and well-transparent, and good insulation function.
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Appearance and properties: colorless liquid, almost odorless
Molecular weight 90.12 Vapor pressure 0.51 kPa/20℃ Flash point: 43℃
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
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TDI is the abbreviation of toluene diisocyanate. TDI is a polycyanate widely used in industrial production. It is a polyurethane material and an important basic material. Mainly used to make flexible polyurethane foam, polyurethane elastomer, coatings, adhesives, etc.
TDI (toluene diisocyanate) is one of the commonly used polyisocyanate, and polyisocyanate is an important base material of polyurethane (PU). The TDI commonly used in the polyurethane industry is a mixture of 2,4-TDI and 2,6-TDI isomers, including three commonly used grades.
Castor oil is a kind of fatty acid triglyceride, which exists in castor bean seeds, and the content is between 35% and 57.%.
The principle of photocatalysis is based on the oxidation-discount capacity of photocatalysts beneath mild conditions, which can reap the purpose of purification of pollution, cloth synthesis and transformation. usually, the photocatalytic oxidation response makes use of a semiconductor as a catalyst and mild as an power source to degrade organic rely into carbon dioxide and water.
Ammonia is an aqueous solution of ammonia. It is colorless, transparent and has a pungent smell. So what are the properties of ammonia?
Since the use of sodium nitrite in the bleach is due to its ability to form sulfur dioxide, sulfur dioxide has strong oxidation resistance, and color oxidation can be oxidized.
It has relatively low solubility to non-polar gases H2 and N2 during the absorption process, so the loss of pure gas is also small. This feature further constitutes its bright future as a decarburization solvent.
Special combination instruments, such as Kjeldahl trace nitrogen analyzer, K-D evaporation concentrator, rotary evaporation concentrator, etc., should be cleaned and protected.
