The toluene diisocyanate has 2,4-toluene diisocyanates and 2,6-toluene diisocyanate (TDI).

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.

This product is the standard configuration of SCR technology, the solution concentration is 32.5% 0.7%, which can effectively reduce exhaust pollution and ensure engine efficiency ;8-stage pretreatment + RO reverse osmosis technology + EDI electrodeionization water purification technology + high-precision filtration and purification to ensure the purity of the solution from the source, Delay SCR scaling, protect the urea pump and pipeline; select ultra-high-purity urea particles, made through multiple purification processes, long-term maintenance of the system and catalyst activity, and prol

The octane is the most important quality indicator of the vehicle gasoline.

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,

mercaptan wrapped in fuel is malodorous and corrosive, which reduces the lead content of gas. except, mercaptan is also an oxidation initiator, which can promote the oxidation and condensation of risky components in fuel to gel, resulting in terrible garage balance of gasoline. cobalt phthalocyanine sulfonate is an powerful catalyst for disposing of mercaptan sulfur from heavy oil, and it has the identical effect. whilst in use, dissolve the catalyst in 10% alkali solution, heat it slightly for a time frame, and stir to dissolve it before use.

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.

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.

It is a new solvent for selective desulfurization and decarbonization with excellent performance. It has the advantages of high selectivity, low solvent consumption, significant energy-saving effect, and non-degradability.

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.

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. [1]

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.

Product Quality: Chemical Abstracts Number: 101-14-4 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%

Methyl Isobutyl Ether ether is also known as methyl isobutone, 4-methyl-2-pentanone.

1.4, 4 '- methylene bis (2-chlorocene) The molecular weight is 267.15, the molecular formula is C13H12N2 CL2

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.

The melting point is 13.5°C, the boiling point is 140.9°C, and the density (20/4°C) is 1.0611g/cm3. The chemical nature is lively. It is easy to polymerize in air and can be reduced to propionic acid by hydrogenation. Addition with hydrogen chloride generates 2-chloropropionic acid. Used in the preparation of acrylic resins and other organic synthesis. It is made by oxidation of acrolein or hydrolysis of acrylonitrile, or made by carbon monoxide, acetylene and water under the action of nickel catalyst.

Sodium Persulfate is also called sodium sulfate, is an inorganic substance, a chemical formula is Na2S2O8, and the appearance is a white crystal powder, odorless.

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.

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.

Only a small part of ammonia molecules react with water to form ammonia monohydrate, which is a weak base that only exists in ammonia.

Phosphorus pentachloride is mainly used as a chlorination reagent for alcohols, carboxylic acids, amides, aldehydes, ketones, enols, and Beckmann rearrangement reagents. It is used as a chlorination agent and catalyst in organic synthesis, and is used in the production of medicines, dyes, and chemical fibers. It is also the raw material for the production of phosphazene chloride and phosphorus oxychloride.

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.