ProductsPLASTICIZERSDibutyl sebacate (DBS)

Dibutyl sebacate (DBS) is a colourless, transparent, oily, odourless liquid. It is a compound ester of the butyl alcohol and sebacic acid. Dibutyl sebacate is the most efficient of plasticizers.

Specification

CAS Nr.

109-43-3

EC Nr.

203-672-5

Molecular Formula

C18H34O4

Appearance

Transparent liquid without particulate matters

Colour by platinum-cobalt scale, Hazen units

50 max.

Density at 20°C

0,934 - 0,938 g/cm³

Acid index mg. КОН/g

0,04 max.

Saponification value

354 - 359 mg КОН/g

Solubility

Soluble in toluene, acetone, hexane, ethanol. Practically insoluble in water, propylene glycol, glycerin.

Solubility in water

0,04 g/l

Molecular weight

314,46

Melting temperature

-12 ºС

Boiling temperature

345 ºС

 

Dibutyl sebacate is used for plasticization: PVC, polyvinyl butyral, cellulose acetate, rubber. DBS gives products a high cold-resistance at low temperatures, light and water resistance.

Dibutyl sebacate is intended for plasticization of vinyl resins and other polymers in the production of the cable plasticates, artificial leather, industrial rubber products, polymeric building materials, linoleums, film and sheet materials, packaging films, PVC seals, gaskets for refrigerators, crown cork gaskets, and other purposes.

Dibutyl sebacate is used for plasticization of paint and varnish materials on the base of cellulose esters and polyvinyl chloride. It provides coatings with a high frost-resistance.

Dibutyl sebacate is insoluble in water, soluble in organic solvents and hydrocarbons. It is used as plasticizer for vinyl polymers, particularly for polyvinyl chloride and vinyl chloride copolymers, as well as for cellulose nitrate, ethyl- and benzyl-cellulose. DBS is not toxic and can be used in products contacting with foodstuffs.

<< Back