Our formaldehyde is produced by oxidation process. During the production, fresh air is mixed with recycled gases, and the chemical reaction occurs within the fixed bed reactor. Through metal oxides catalysis, formaldehyde gas is produced and then absorbed by water in the absorption tower. ......More→
Bisphenol A (BPA) is produced through the reaction of phenol and acetone. It’s white granule with the density of 1.195. The purified product has fusing point at 158-159℃, while industrial product has the fusing point at 156-157℃. The boiling point is at 220℃ (5mbar). It is soluble in acetone but insoluble in water. Under ......More→
Propylene glycol monomethyl ether acetate (PGMEA/PMA), also known as propylene glycol methyl ether acetate, is a colorless hygroscopic liquid with a unique odor. It is a non-polluting solvent with multi-functional groups. Its molecular formula is C6H12O3.......More→
As a byproduct of trimethylolpropane, sodium formate is a white crystalline powder that is highly hygroscopic and water soluble.
Tetrahydrofuran (THF) is produced by dehydration of 1,4-butanediol. It is a neutral, colorless, volatile cycloaliphatic ether. It is highly polar and miscible with water. As an aprotic and medium polarity solvent, tetrahydrofuran is an excellent solvent for many organic substances. The chemical formula of this ......More→
Chang Chun's trimethylolpropane (TMP) is a widely functional intermediate in the organic chemical industry. TMP can improve various resins’ toughness, corrosion-resistance, and sealing strength. It is very stable against oxidation, hydrolysis, and pyrolysis. It’s mainly used as the raw material for alkyd ......More→
Our phosphorus flame retardants are halogen-free phosphate-based flame retardants. They are mainly used as flame retardant for various types of engineering plastics, rubber, and printed circuit boards that require to be more eco-friendly (i.e. green products).
N-butyl acetate is a colorless transparent liquid with a pleasant fruity odor. Unlike lower molecular weight homologues (such as methyl acetate, ethyl acetate and propyl acetate), it is insoluble in water, but is miscible with organic solvents, such as alcohol, ......More→
Our α-Cyanoacrylate adhesive (or commonly known as instant/quick glue) is a single-component, fast reacting, and solvent-free adhesive developed with our own research. It can be used to bind marble, plastic, wood, metal, rubber and ceramic within very short period of time at room ......More→
Allyl alcohol is an irritating, colorless liquid that is produced by gas phase reaction of propene and acetic acid in presence of a catalyst. It can be used as a raw material or a precursor for many chemical substances.
Isobutanol (IBA) is a byproduct obtained by hydroformylation of allyl alcohol with carbon monoxide and hydrogen, which is then followed by hydrogenation. It is a colorless liquid which is soluble in water, alcohols, and ethers. IBA can be used as a solvent for coating and as a chemical intermediates in organic synthesis. As ......More→
Chang Chun Group has been producing paraformaldehyde since Oct. 1983. Due to our paraformaldehyde is mainly in a granular format with consistent quality, it is easy to handle and transport. Because of excellent solubility and broad applicability, it is used in products such as synthetic resin, phenolic resin, ......More→
Phenolic resin is the reaction product of phenol and formaldehyde. It offers good mechanical strength, dimensional/thermal stability, and good resistance to electricity, solvent, and acid. It is widely used in molding materials (including electronic packaging materials), laminating materials, polishing materials, ......More→
n-Propanol is a byproduct obtained by hydroformylation of allyl alcohol with carbon monoxide and hydrogen, which is then followed by hydrogenation. It is a colorless liquid with alcohol odor. It is moderate volatilite and is soluble in water, alcohols, and ether.
Polytetramethylene ether glycol (PTMEG/PTG) is produced by the acid catalyzed polymerization of tetrahydrofuran (THF). It is a straight-chain diol with repeated tetramethylene ether units.
The primary function of the stripper is to remove the excess photoresist after etching. Our electronic grade stripper is designed for TFT-LCD applications. During TFT-LCD manufacturing, stripper will be heated and then the glass substrate will be immersed. Water is then removed by ......More→
Hydrogen peroxide is a colorless transparent liquid with a slight odor of ozone and can be mixed with water in any proportion. Its molecular formula is H2O2 (with molecular weight of 34). Hydrogen peroxide is an economical chemical that is widely used in various industries, such as: ......More→
With technical cooperation with Honeywell UOP (formerly known as UOP LLC) of the USA, we produce high-purity phenol via the cumene process. Phenol is white crystals under normal temperature, with melting point at 40.7℃. It’s soluble in ethanol, acetic acid, glycerol, chloroform, carbon disulfide and benzene. Its main downstream ......More→
Propylene glycol monomethyl ether (PGME) and ethylene glycol ether are both glycol ether solvent. From human toxicity’s perspective, toxicity of propylene glycol ether is lower than that of ethylene glycol ......More→
Methyl acetate is a colorless transparent liquid with a fruit-like fragrance. It’s low-toxic, but it’s flammable with the boiling point at 57℃, melting point at -98.05℃ and density of 0.93. It’s usually used to replace acetone, butanone, ethyl acetate and cyclopentane. Due to its low toxicity, methyl acetate can ......More→
1,4-Butanediol (BDO) is produced by hydroformylation of allyl alcohol with carbon monoxide and hydrogen, which is then followed by hydrogenation. It is a colorless liquid with high boiling point and low toxicity.
Acetic acid is a colorless transparent liquid with pungent sour odor. It is also known as glacial acetic acid whenever the purity is 99.5% or more. Acetic acid is soluble in water, alcohols, and ethers and is widely used in man-made fibers, rubber, plastics, agriculture, herbicides, leather, organic ......More→
Brominated epoxy flame retardant is an epoxy resin-based flame retardant with high bromine content. It can be added to variety of engineering plastics, such as PP, PA, PE, PS, ABS, PET, and PBT. Compared to traditional TBBA-based flame retardant, products ......More→
2-Methyl-1,3-propanediol is a product produced through hydroformylation of allyl alcohol with carbon monoxide and hydrogen, which is then followed by hydrogenation. It is a colorless low viscosity liquid with low toxicity. It is a non-linear diol with a unique methyl branch.
gamma-Butyrolactone (GBL) is a solvent with high-boiling point. Its advantages of good solubility, dielectric property, and stability make it suitable as an extractant, dispersant, and dyeing auxiliaries. GBL is also an important intermediate for organic synthesis and can be used in fields such as ......More→
With the density of 0.88, boiling point at 124-128℃ and melting point at -76℃, n-butyl acetate is an excellent organic solvent. As a flammable colorless liquid, it can well dissolve cellulose acetate butyrate, ethyl cellulose, chlorinated rubber, polystyrene, and many natural gums and resins. Therefore, it is ......More→
Polyvinyl alcohol (PVA), a white/yellowish granule or powder, is a stable, non-toxic, and water-soluble polymer. PVA possesses good film-forming property, and the film formed from it has excellent adhesion, solvent-resistance, abrasion-resistance, high tensile strength, and great oxygen barrier property. ......More→
Vinyl acetate monomer (VAM) is a reactive colorless liquid chemical that is produced by gaseous reaction of ethylene, acetic acid, and oxygen in the presence of a catalyst. Hydroquinone is added as a stabilizer to inhibit polymerization during storage.
Acetic acid propyl ester, also known as “propyl acetate” or “n-propyl acetate”, naturally exists in strawberries, bananas and tomatoes. It is synthetically produced by having acetic acid and 1-propanol undergoing esterification reaction. It is a colorless transparent liquid at room temperature with typical ......More→
Polybutylene terephthalate (PBT) is a thermoplastic polyester resin produced by having 1,4-butanediol (BDO) and purified terephthalic acid (PTA) going through polycondensation and kneading process. Because it possesses a ......More→
Propylene glycol monomethyl ether acetate (PGMEA/PMA), also known as propylene glycol methyl ether acetate, is a colorless hygroscopic liquid with a special odor. It is a non-polluting ......More→
Chang Chun is the earliest and also the largest manufacturer of tetramethyl ammonium hydroxide (TMAH) in ......More→
In technical cooperation with Honeywell UOP of the USA (formerly known as UOP LLC), Chang Chun Group produces high-purity acetone via the cumene process. At room temperature, acetone is a colorless, highly volatile, flammable liquid with fragrant smell. It is also dangerous as it can react violently with strong oxidizer. It’s soluble ......More→
Our acrylamide aqueous solutions are produced by having acrylonitrile undergoing through hydration reaction. Our acrylamide solutions are extremely stable and have excellent quality. Polymeric and copolymeric products made from acrylamide are widely used for paper chemicals, coagulants, adhesives, petroleum engineering, ......More→