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1 4-Cyclohexanedicarboxylic acid
【Chemical Name】1 4-Cyclohexanedicarboxylic acid
【Synonym】 1,4-Cyclohexanedicarboxylicacid,Mixtureofcisandtrans,99+%100GR;1,4-trans-cyclohexyldicarboxylicacid;cis+trans),1,4-Cyclohexanedicarboxylicacid(cis-andtrChemicalbooka;Two1,4-cyclohexanecarboxylicacid;1,4-ringofadipicacid;1,4-Cyclohexanedicarboxylicacid(cis-andtrans-mixture);1,4-Cyclohexanedicarboxylicacid99%;1,4-CHDA
【CAS No】1076-97-7
【Molecular Formula】 C8H12O4
【Molecular Weight】172.18
【Properties】 Melting point 164-167 ° C (lit.) Boiling point 262.49 ° C (rough estimate) Density 1.2104 (rough estimate) Refractive index 1.4450 (estimate) Flash point 235 ° C
【Packing】25Kg/drum)
【Usage】 Resin for powder coating; Resin for coil coating; Used in medicine for synthesizing peptic ulcer drugs; Used as a modified monomer in polyester resin; High solid polyester melamine dried porcelain paint; Unsaturated polyester resin for gel coating. Application in waterborne polyurethane resin: 1,4-CHDA and AD (adipic acid) have good processability, low solution viscosity, and PIA (phthalic acid) ranks second. Dispersion stability: 1,4-CHDA>PIA>AD1. 4-CHDA can also achieve a good balance between hardness and flexibility of the resin. 1,4-CHDA can be used to improve the dispersibility of acrylic resin and also has good storage stability. In addition, the coordination between 1,4-CHDA and acrylic resin is better than that of isophthalic acid (DOP).
1,4-CHDA has higher reactivity than PIA and is used in the synthesis of peptic ulcer drugs in medicine. In polyester resin, it is used as a modified monomer to improve yellowing of polyester resin and improve its flexibility (softness) without changing its hardness.
【Introduction】
1,4-Cyclohexanedioic acid, abbreviated as CHDA, is an important organic chemical raw material and monomer for high-performance polyester resins. It has the molecular formula C8H12O4 and a molecular weight of 172.18. The cis trans mixture of 1,4-cyclohexanedicarboxylic acid is a white crystalline substance with a melting point between 164-167 ℃. It is soluble in organic solvents such as ethanol, acetone, and chloroform, and has a solubility of approximately 1% in water. Trans-1,4-cyclohexanedioic acid is a white phosphorus columnar crystal with lower solubility in water than cis, and a melting point greater than 300 ℃. And cis-1,4-cyclohexanedioic acid is a white leaf crystal with considerable solubility in water, with a melting point of 170-171 ℃.
In terms of industrial applications, 1,4-cyclohexanedicarboxylic acid is mainly used to produce polyester resin, which has good mechanical properties and heat resistance, and is widely used in coatings in the fields of automobiles, transportation, industrial maintenance, aerospace, buildings, equipment and instruments. In addition, it also has applications in the pharmaceutical field for synthesizing drugs for the treatment of peptic ulcers. In terms of polyester resin, 1,4-cyclohexanedicarboxylic acid is used as a modifying monomer to improve the yellowing problem of polyester resin, while increasing its flexibility without changing its hardness.
The synthesis method of 1,4-cyclohexanedicarboxylic acid includes the preparation of renewable carbon sources such as cellulose, starch, sugars, etc. through enzymatic catalysis. This method is environmentally friendly and has abundant raw material sources, making it a new non petrochemical process for synthesis.
In terms of safety, the hazardous material symbol for 1,4-cyclohexanedicarboxylic acid is Xn, the hazard category code is 22-36, the safety instructions are 26-36-24/25, the WGK Germany rating is 3, the TSCA (Toxic Substances Control Act) is listed as Yes, and the customs code is 29172090.
1 4-Cyclohexanedicarboxylic acid
【Chemical Name】1 4-Cyclohexanedicarboxylic acid
【Synonym】 1,4-Cyclohexanedicarboxylicacid,Mixtureofcisandtrans,99+%100GR;1,4-trans-cyclohexyldicarboxylicacid;cis+trans),1,4-Cyclohexanedicarboxylicacid(cis-andtrChemicalbooka;Two1,4-cyclohexanecarboxylicacid;1,4-ringofadipicacid;1,4-Cyclohexanedicarboxylicacid(cis-andtrans-mixture);1,4-Cyclohexanedicarboxylicacid99%;1,4-CHDA
【CAS No】1076-97-7
【Molecular Formula】 C8H12O4
【Molecular Weight】172.18
【Properties】 Melting point 164-167 ° C (lit.) Boiling point 262.49 ° C (rough estimate) Density 1.2104 (rough estimate) Refractive index 1.4450 (estimate) Flash point 235 ° C
【Packing】25Kg/drum)
【Usage】 Resin for powder coating; Resin for coil coating; Used in medicine for synthesizing peptic ulcer drugs; Used as a modified monomer in polyester resin; High solid polyester melamine dried porcelain paint; Unsaturated polyester resin for gel coating. Application in waterborne polyurethane resin: 1,4-CHDA and AD (adipic acid) have good processability, low solution viscosity, and PIA (phthalic acid) ranks second. Dispersion stability: 1,4-CHDA>PIA>AD1. 4-CHDA can also achieve a good balance between hardness and flexibility of the resin. 1,4-CHDA can be used to improve the dispersibility of acrylic resin and also has good storage stability. In addition, the coordination between 1,4-CHDA and acrylic resin is better than that of isophthalic acid (DOP).
1,4-CHDA has higher reactivity than PIA and is used in the synthesis of peptic ulcer drugs in medicine. In polyester resin, it is used as a modified monomer to improve yellowing of polyester resin and improve its flexibility (softness) without changing its hardness.
【Introduction】
1,4-Cyclohexanedioic acid, abbreviated as CHDA, is an important organic chemical raw material and monomer for high-performance polyester resins. It has the molecular formula C8H12O4 and a molecular weight of 172.18. The cis trans mixture of 1,4-cyclohexanedicarboxylic acid is a white crystalline substance with a melting point between 164-167 ℃. It is soluble in organic solvents such as ethanol, acetone, and chloroform, and has a solubility of approximately 1% in water. Trans-1,4-cyclohexanedioic acid is a white phosphorus columnar crystal with lower solubility in water than cis, and a melting point greater than 300 ℃. And cis-1,4-cyclohexanedioic acid is a white leaf crystal with considerable solubility in water, with a melting point of 170-171 ℃.
In terms of industrial applications, 1,4-cyclohexanedicarboxylic acid is mainly used to produce polyester resin, which has good mechanical properties and heat resistance, and is widely used in coatings in the fields of automobiles, transportation, industrial maintenance, aerospace, buildings, equipment and instruments. In addition, it also has applications in the pharmaceutical field for synthesizing drugs for the treatment of peptic ulcers. In terms of polyester resin, 1,4-cyclohexanedicarboxylic acid is used as a modifying monomer to improve the yellowing problem of polyester resin, while increasing its flexibility without changing its hardness.
The synthesis method of 1,4-cyclohexanedicarboxylic acid includes the preparation of renewable carbon sources such as cellulose, starch, sugars, etc. through enzymatic catalysis. This method is environmentally friendly and has abundant raw material sources, making it a new non petrochemical process for synthesis.
In terms of safety, the hazardous material symbol for 1,4-cyclohexanedicarboxylic acid is Xn, the hazard category code is 22-36, the safety instructions are 26-36-24/25, the WGK Germany rating is 3, the TSCA (Toxic Substances Control Act) is listed as Yes, and the customs code is 29172090.
