Diisobutyl Phthalate(DIBP)

Performance and use：

Diisobutyl phthalate is a colorless transparent oily liquid with molecular formula C16H22O4, molecular weight 278.35, relative density (d2020) 1.040, compatible with most resins such as cellulose acetate and polyvinyl chloride. It can be used as a toughening agent for cellulose resin, vinyl resin, nitrile rubber, chlorinated rubber, and the like. The plasticizing ability is similar to DBP, but the volatility and water extraction are larger than DBP. It can be used as a substitute for DBP. The toxicity coefficient is T=500, which is not suitable for PVC film.

Technical indicators：

Indicator name	Index
Indicator name	Superior grade/td>	First grade	Qualified product
Exterior	An oily liquid with no visible impurities
Chroma, (Pt-Co) ≤	25	35	60
Purity, % ≥	99.5	99.0	98.5
Density（ρ20），g/cm3	1.038-1.048
Acid value,mgKOH/g ≤	0.06	0.12	0.20
Moisture, % ≤	0.1	0.15	0.20
Flash point (open cup method),℃ ≥	160	155	155

Properties

DiBP is one of the main plasticizers commonly used. It can be used as plasticizer for cellulose resin, vinyl resin, nitrile rubber and chlorinated rubber. The plasticizing efficiency is similar to that of DBP, with excellent solubility, dispersion and adhesion. This product has good compatibility with pigments. It can be used for coloring films, artificial leather and plastic products. It can also be used as a softener of natural rubber and synthetic rubber to improve the resilience of products. It can be used as a substitute for DBP.

CAS No.

84-69-5

Formula

C16H22O4

Molecular Mass

278.34300

Exact Mass

278.15200

PSA

52.60000

Logp

3.31220