Decalin


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Decalin

 

(also decahydronaphthalene and perhydronaphthalene), C10H18, an alicyclic hydrocarbon; a colorless liquid with a strong odor. It exists in cis- and trans- stereoisomers, which differ in the mutual position of the rings. The more stable trans form has a boiling point of 185.5°C, a melting point of -31.5°C, and a density of 0.87 g/cm3 (20°C). The cis form has a boiling point of 194.6°C, a melting point of -43.2°C, and a density of 0.897 g/cm3 (20°C).

In industry decalin is obtained as a mixture of isomers (usually 60 percent cis and 40 percent trans) by catalytic hydrogenation of naphthalene. It is insoluble in water; has limited solubility in acetic acid, ethanol, and methanol; and is miscible in all proportions with ether and chloroform. Decalin is a good solvent for many organic substances and polymers.

References in periodicals archive ?
w, oils and decalin and reusable accessories to the microscope moeller-wedell hi-r900.
Decalin (CAS 91-17-8) Market Research Report 2013 presents comprehensive data on decalin markets globally and regionally (Europe, Asia, North America etc.
For this reason, this polyethylene is often swollen and dissolved in suitable solvents, like decalin and paraffin, to disentangle the networks.
Measurements of the intrinsic viscosity of polypropylene were made at a temperature of 140[degrees]C measure using decalin, (decahydronaphthalene) as the solvent.
The colloid system that she and her team studies is composed of polymethylmethacrylate (PMMA) particles, which are sterically stabilized and suspended in a decalin and tetralin solvent mixture, then balanced with a bigger polymer, polystyrene (PS), that causes attraction through a depletion interaction.
1970); sodium sulfite was omitted from the NDF analysis and decalin was omitted from the ADF analysis (Van Soest et al.
Patented is a highly oriented polyolefin fiber containing polyolefin with an intrinsic viscosity (in decalin at 135[degrees]C.
v], DRI; and (iv) inherent viscosity (IV) measured in decalin at 135[degrees]C.
We overcame that problem in the case of the 1-hexene-4-yne product by use of Decalin as the extraction solvent followed by extensive washing with water and careful fractional distillation.
LONDON -- Decalin (decahydronaphthalene) is clear colourless aromatic-scented liquid bicyclic organic chemical compound with the formula C10H18.