1,4-Cyclohexanedimethanol , 99%, a mixture , 105-08-8

Synonym(s):
1,4-Bis(hydroxymethyl)cyclohexane, mixture of cis and trans

CAS NO.：105-08-8

Empirical Formula: C8H16O2

Molecular Weight: 144.21

MDL number: MFCD00001512

EINECS: 203-268-9

PRODUCT Properties

• Melting point: 31.5 °C
• Boiling point: 283 °C (lit.)
• Density: 1,04 g/cm³
• vapor density: 5 (vs air)
• vapor pressure: 0.24Pa at 20℃
• refractive index: 1.4240 (estimate)
• Flash point: 322 °F
• storage temp.: Store below +30°C.
• solubility: >34g/l soluble
• form: Solid
• pka: 14.75±0.10(Predicted)
• color: Off-White
• PH: 4.2 (250g/l, H2O, 20℃)
• Water Solubility: MISCIBLE
• BRN: 1902271
• LogP: 1.49 at 20℃

Description and Uses

An important application for 1,4-bis (hydroxymethyl)cyclohexane is in the production of PET. CHDM is used in small amounts to modify the properties, for example to increase clarity, lower the melting point, and decrease the rate of crystallization, thereby broadening the process window for PET. The molding process can be done at lower temperatures resulting in less formation of byproducts. It is used for example in automotive, trains, buses, aerospace, and general industrial coatings. CHDM has a high crystallinity and gives polyesters with a higher glass transition temperature than linear glycols. Crystalline polyesters for powder coatings take advantage of this. Unsaturated polyesters for gel coats, glass-fifiber-reinforced plastics and sheet molding compounds are other uses where CHDM gives very good corrosion resistance. Polycarbonate diols from CHDM are used in high-performance polyurethanes. Acrylates of alkoxylated CHDM are used in radiation curable coatings imparting toughness and resilience.

Safety

• Symbol(GHS): GHS05
• Signal word: Danger
• Hazard statements: H318
• Precautionary statements: P280-P305+P351+P338+P310
• Hazard Codes: Xi
• Risk Statements: 36-41
• Safety Statements: 22-24/25-39-26
• WGK Germany: 1
• RTECS: GU9800000
• Autoignition Temperature: 584 °F
• TSCA: Yes
• HS Code: 29061990