Octyl phthalate

If this temperature is exceeded the yield of octyl phthalate is reduced and the color of the product is very dark. The color is carried through with the /-fraction, making it difficult to read rotations. 

Di-(2-ethylhexyl)phthalate ( di-iso-octyl phthalate) [117-81-7] M 390.6, b 384°, 256-257°/lmni, d 0.9803, n 1.4863. Washed with Na2C03 soln, then shaken with water. After the resulting emulsion had been broken by adding ether, the ethereal soln was washed twice with water, dried (CaCl2), and evaporated. The residual liquid was distd several times under reduced pressure, then stored in a vacuum desiccator over P2O5 [French and Singer J Chem Soc 1424 1956]... 

From Table 5.7 it will be seen that plasticisers for PVC such as the octyl phthalates, tritolyl phosphate and dioctyl sebacate have solubility parameters within 1 cgs unit of that of the polymer. Dimethyl phthalate and the paraffinic oils which are not PVC plasticisers fall outside the range. It will be noted that tritolyl phosphate which gels the most rapidly with PVC has the closest solubility parameter to the polymer. The sebacates which gel more slowly but give products which are flexible at lower temperatures than corresponding formulations from tritolyl phosphate have a lower solubility parameter. It is, however, likely that any difference in the effects of phthalate, phosphate and sebacate plasticisers in... 

Diethylene triamine Diethyl ether, see Ethyl ether Di(2-ethylhexyl)phthalate, see Di-sec-octyl phthalate Diethyl ketone Diethyl phthalate Diethyl sulphate Difluorodibromomethane Diglycidyl ether (DGE)... 

Dipropylene glycol methyl ether Di-sec, Octyl phthalate (di-2-ethylhexylphthalate)... 

Plasticised amorphous thermoplastics Certain plastics may be mixed with high-boiling low-volatility liquids to give products of lower T. The most important example occurs with p.v.c. which is often mixed with liquids such as di-iso-octyl phthalate, tritolyl phosphate or other diesters to bring the below room temperature. The resultant plasticised p.v.c. is flexible and to some degree quite rubbery. Other commonly plasticised materials are cellulose acetate and cellulose nitrate. 

PVC closure seals for jars Di-(2-ethylhexyl) phthalate Di-iso-decyl phthalate Di-iso-octyl phthalate... 

Nandanan et al. [35] reported the utilization of linseed oil as an MFA in nitrile rubber vulcanizates. Linseed oil not only acted as a plasticizer but also as the fatty acid component of the activator in the NBR vulcanizates. Use of linseed oil gave appreciable increase in properties like tensile strength, tear resistance, etc. while the viscosity of the compound was marginally lower than that of the control compound (which used di-octyl phthalate as the plasticizer). The vulcanizates containing linseed oil also exhibited increased cure rate as well as reduced leachability compared to the control at a dosage of 2-5 phr. This loading was seen to replace 6 phr DOP and 2 phr stearic acid in conventional NBR vulcanizates thereby reducing compound costs. 

The reaction between mono-octyl phthalate and i5tMx tanol (see Fig. 5.4-25) in the presence of a homogeneous catalyst (rert-butyl titanate) was studied in a batch reactor (Szarawara et al., 1991). This is the second step of the reaction between phthalic anhydride and o-octanol. First the ring is opened and mono-octyl phthalate is formed. Water is removed by evaporation as it is formed. The reaction was carried out at 174 °C. The initial concentration of mono-octyl phthalate was cpno = 1.85 mol/L and the ratio of initial concentrations of iio-octanol to mono-ooctyl phthalate coc.o/cph,o = 1.4. The reaction was... 

Kinetic data for esterification of mono-octyl phthalate with iso-octanol Time, min 0 5 20 35 50 65 80 95 110 125 140... 

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