Dop Oil

Cas No: 117-81-7           
EINESC No: 204-211-0
Molecular weight: 390,564 g/mol  

Chemical Formula: C24H38O4
Chemical Structure:

Physical Properties

General Properties: colorless, oily liquid

Odor: odorless

Intensity: 0,99 g/cm3

Boiling point: 385 °C

Melting point: -50  ° C

Flash point: 216 °C

Vapor pressure: 0,01 mmHg (20 ° C)

Refraction index: 1.4870 nD

Solubility : almost indissoluble

Viscosity:

General Properties

Bis (2-ethylhexyl) phthalate, or dop oil, is a phthalate that is used to increase flexibity of rigid plastics. It is a colorless liquid and it is insoluble in water. It is soluble in oil. It is a commonly used in plastic production due to its low cost but it is restricted in some countries as it is hazardous.

Production

Dop oil is industrially produced by reaction of phthlatic anhydrid and 2-ethylhexanol. It is a chiral compound and it is acquired as a racemic mixture.

Applications

Dop oil is frequently used in PVC production due to its low cost and suitable properties.  It is also used to increase flexibility of rigid plastics. Tablecloths, shower curtains and toys may contain from 1% to 40% dop oil. It is also used in air-fresheners and cosmetic products. It is also used as plastifier in plastic blood bags and dialysis machines.

Drop oil was also used in textile products and dye dispersants until it was restricted in 2000s.

Safety Measures and Toxic Values

Drop oil may cause serious damage to hormonal balance. It can cause serious reproduction disfunctions, especially in males. Studies indicate that it causes serious decrease in sperm movements and dna integrity. Researches on animals indicate that it damages infant development if it is exposed during pregnancy period.

It is also extremely hazardous for heart and kidneys, even in low concentrations. It may cause cyst formation on females.

It is also classified as carciogenic substance.

It is extremely hazardous for environment. It threatens aquatic life and sperm, ovary quality in animals. It also cumulates in nature and it is very hard to biologically disintegrate. Therefore, it must never be given to city network.