Cyclohexanedimethanol (CHDM) is a mixture of isomeric organic compounds with formula C6H10(CH2OH)2. It is a colorless low-melting solid used in the production of polyester resins. Commercial samples consist of a mixture of cis and trans isomers. It is a di-substituted derivative of cyclohexane and is classified as a diol, meaning that it has two OH functional groups. Commercial CHDM typically has a cis/trans ratio of 30:70.

IUPAC name: [4-(hydroxymethyl)cyclohexyl]methanol

Preferred IUPAC name: (cyclohexane-1,4-diyl)dimethanol

Other names: 1,4–Cyclohexanedimethanol; CHDM; 1,4-Bis(hydroxymethyl)cyclohexane

CAS Number: 105-08-8

Applications: Via the process called polycondensation, CHDM is a precursor to polyesters. It is one of the most important comonomers for production of polyethylene terephthalate (PET), or polyethylene terephthalic ester (PETE), from which plastic bottles are made

Thermoplastic polyesters containing CHDM exhibit enhanced strength, clarity, and solvent resistance. The properties of the polyesters vary from the high melting crystalline poly(1,4-cyclohexylenedimethylene terephthalate), PCT, to the non-crystalline copolyesters derived from both ethylene glycol and CHDM. The properties of these polyesters also is affected by the cis/trans ratio of the CHDM monomer.[3] CHDM reduces the degree of crystallinity of PET homopolymer, improving its processability. The copolymer tends to resist degradation, e.g. to acetaldehyde. The copolymer with PET is known as glycol-modified polyethylene terephthalate, PETG. PETG is used in many fields, including electronics, automobiles, barrier, and medical, etc.

1,4-Cyclohexane Dimethanol 105-08-8

Description and uses: Cyclohexanedimethanol Monovinyl Ether is a colorless-yellow

liquid. Used in polyester section, polyester fiber, bottle polyester, polyester board, polyester electric appliances, coating.

Synonym: 1,4-bis (hydroxymethyl) cyclohexane

DESCRIPTION AND USES

Cyclohexanedimethanol Monovinyl Ether is a colorless-yellow

liquid. Used in polyester section, polyester fiber, bottle polyester, polyester board, polyester electric appliances, coating.

APPLICATIONS

Bottle polyester, Coatings, Polyester fiber, Polyester board, Polyester electric appliances

INDUSTRIES

Electrical, Coatings

PRODUCT DETAILS

Product group:Anhydrides

Synonym product: 1,4-bis (hydroxymethyl) cyclohexane

Statistics number:2906-19-00(-10)

Cas number: 105-08-8

Cus number: 15760

EC number:203-268-9

PHYSICAL PROPERTIES

Molecular weight:144.21

Odour: Sweet

Boiling point °C: 286

Freezing point (°C):24

Melting point, °C:41-61

Specific gravity (20°C):1.02

Vapor density (air=1):5

Solubility in water:Soluble

Flash point (COC,°C):167

Auto ignition temperature, °C: 307

1,4-Cyclohexanedimethanol (CHDM-D)

Product description

IUPAC: 1,4-cyclohexanedimethanol

CHDM-D is a symmetrical, high molecular weight cycloaliphatic glycol used to make saturated and unsaturated polyester resins. 

It is commonly used as a glycol modifier for resins 

Good chemical, stain, humidity, and corrosion resistance is achieved when using CHDM-D in polyester-melamine baking enamels for appliance, general metal, and automotive coatings. 

It delivers good hydrolytic stability to waterborne polyester resins. 

Durable polyester polyols for polyurethane coatings can be made for the industrial maintenance, transportation, automotive, and aerospace markets. 

It can also be used in unsaturated polyester resins for gel coats, sheet molding compounds, and injection moldable fiberglass-reinforced plastics.

CHDM-D is a mixture of cis and trans isomers. It is available in three forms:

Cast solid in drums requiring a hot room or drum heater to melt the contents for removal.

Bulk molten which requires a heated storage tank.

CHDM-D90, a 90/10 weight percent solution of CHDM-D in water, which is liquid at room temperature for easier handling.

Contact us for more information, to request a sample, or to receive a copy of Eastman publication, Storage and Handling of 1,4-Cyclohexanedimethanol (CHDM).

Applications/uses

Automotive

Building materials

Coil coatings

Construction chemicals

Equipment & machinery

Intermediates

Lubricants

Metal coatings

Packaging components non food contact

 

Paints & coatings

Polymer modification

Process additives

Protective coatings

Soft drink packaging

Sport drinks packaging

Water packaging

Wind energy

Key attributes

Excellent corrosion resistance in fiberglass-reinforced plastics

Excellent hardness with some flexibility

Good heat resistance and electrical properties

High crystallinity

High glass transition temperature relative to linear aliphatic glycols

Highly reactive hydroxyl groups

 

1,4-CYCLOHEXANEDIMETHANOL

trans-1,4-Cyclohexanedimethanol

3236-48-4

105-08-8

CHDM

1,4-Bis(hydroxymethyl)cyclohexane

1,4-Cyclohexanedimethanol, cis-

Rikabinol DM

Cyclohexane-1,4-dimethanol

1,4-Chidm

1,4-Cyclohexanedimethanol, trans-

cis-1,4-Cyclohexanedimethanol

1,4-Dimethylolcyclohexane

3236-47-3

[4-(hydroxymethyl)cyclohexyl]methanol

Cyclohex-1,4-ylenedimethanol

trans-cyclohexane-1,4-diyldimethanol

UNII-47A69Y3G5M

trans-1,4-Bis(hydroxymethyl)cyclohexane

UNII-7I8476P8P0

HSDB 5364

1,4-Cyclohexamethylenebis methylol

EINECS 203-268-9

NSC 44508

BRN 1902271

(1r,4r)-cyclohexane-1,4-diyldimethanol

AI3-28853

cyclohexane-1,4-diyldimethanol

(Z)-1,4-cyclohexanedimethanol

UNII-8C3FKR6R1B

47A69Y3G5M

7I8476P8P0

trans-(4-hydroxymethyl-cyclohexyl)-methanol

1,4-Cyclohexanedimethanol (cis- and trans- mixture)

8C3FKR6R1B

PM 1597

[4-(hydroxymethyl)cyclohexyl]methan-1-ol

trans-CHDM

1,4-Cyclohexanedimethanol, (Z)-

cis-CHDM

CHDM, trans isomer

MFCD00001512

CHDM, cis

EC-No. 203-268-9

PubChem20473

(trans-4-Hydroxymethylcyclohexyl)methanol

ACMC-209hsp

ACMC-1BVPU

CHDM mixture of isomers

AI3-26300

G00023-Watson-Int

1,4 cyclohexanedimethanol

DSSTox_CID_6712

1,4 cyclohexane dimethanol