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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Physical and chemical properties:
(1) Melting point (° C): - 2
(2) Boiling point (° C): 158 (no water)
(3) Relative density (water = 1): 1.46
(4) Relative density (air = 1): no material
(5) Solubility: dissolved in water, alcohol, ether, insoluble in benzene, petroleum ether
(6) Stability: unstable, protected from light
(7) Preventing the conditions of touch (taboo): strong acid, strong alkali, acyl chloride, alcohol, amine, flammable or combustible materials.
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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. The cold resistance and light resistance of the product are similar to the tributyl citrate, but water resistance is better. Non-toxic, LD50 = 4000 mg / kg.
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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.
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Appearance: watery bright liquid with pleasant ketone-like fragrance.
Main uses: Used as a solvent for spray paint, nitrocellulose, some fiber ethers, camphor, grease, natural and synthetic rubber.
Precautions for storage and transportation: Store in a cool and ventilated warehouse. Keep away from kindling and heat sources. The warehouse temperature should not exceed 30℃. Avoid direct sunlight. Keep the container sealed. It should be stored separately from oxidant. Lighting, ventilation and other equipment in the storage room should be explosion-proof.
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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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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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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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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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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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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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insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether and oils, it's miles the skeleton factor of triglyceride molecules.
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Glycerol, also called glycerol, with the chemical formula c3h8o3, is colorless, odorless, sweet, with a clean and viscous liquid appearance. it's miles an organic substance that may take in moisture from the air, as well as hydrogen sulfide, hydrogen cyanide and sulfur dioxide. insoluble in benzene, chloroform, carbon tetrachloride, carbon disulfide, petroleum ether and oils, it's miles the skeleton factor of triglyceride molecules.
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When the temperature drops to 2.18K, the properties of liquid helium will change suddenly, the viscosity is very small, and it becomes a super fluid that can flow upwards along the wall of the container. The thermal conductivity is 800 times that of copper. It becomes a thermal conductor with excellent thermal conductivity. Its specific heat capacity, surface tension, and compressibility are all abnormal. This abnormal liquid is called liquid helium II, and the normal liquid helium is called liquid helium I.
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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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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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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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Biphenyl, whose molecular formula is C12H10, is an important organic raw material and is widely used in the fields of medicine, pesticides, dyes, and liquid crystal materials.
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Sodium peroxide is an inorganic substance with a chemical formula of Na2O2 and a molecular weight of 77.98. Beige powder or granules. The relative density is 2.8.
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HCFC-141b (monofluorodichloroethane) is a high-purity liquid widely used in cleaning and solvent fields.
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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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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.
Suitable for tiles, marbles, plastic finishes, adhesives, etc., which can reduce the amount of cement. The water retention of HPMC prevents rapid cracking of the slurry after coating and strengthens the strength of the slurry after hardening.
Comb grass is a characteristic plant that can be grown all over China. The oil processed from the seeds of comb grass is comb grass. Glycine max is a special medicine made from oil, which has extremely high medicinal value.
Sulfonated cobalt phthalocyanine is an effective catalyst for removing mercaptan in light oil. Gasoline containing sour crude oil has a relatively high sulfur content.
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.
Diatom mud is a natural and environmentally friendly interior wall decoration material, which is used to replace wallpaper and latex paint, and plays the role of interior wall decoration and indoor air purification. Powder packaging, not liquid barrels.
The main raw material of diatom mud is the diatom mineral diatomite formed after hundreds of millions of years. Diatom is a kind of algae living in oceans and lakes. Diatom mud is made of natural substances deposited by diatoms, aquatic plankton living in millions of years ago.
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.