Diisobutyl phthalate

Diisobutyl phthalate
IUPAC name	Diisobutyl phthalate
Other names	Diisobutyl ester of phthalic acic, Bis(2-methoxypropyl)ester 1,2-benzenedicarboxylic acid, Di(isobutyl)-1,2-benzenedicarboxylate, DIBP, DiBP, Palatinol IC
Identifiers
CAS number	84-69-5 Y
PubChem	6782
EC number	201-553-2
RTECS number	TI1225000
SMILES	O=C(OCC(C)C)c1c(cccc1)C(=O)OCC(C)C
Properties
Molecular formula	C16H22O4
Molar mass	278.35 g/mol
Appearance	Colorless viscous liquid
Density	1.038 g/cm3
Melting point	-37 °C (236 K)
Boiling point	320 °C (593 K)
Solubility in water	1 mg/l at 20 °C
log P	4.11
Vapor pressure	0.01 Pa at 20 °C
Hazards
R-phrases	R50/53;R62;R63
S-phrases	S36/37;S61
NFPA 704	1 0 0
Flash point	185 °C c.c.
Autoignition temperature	400 °C
Y (what is this?)  (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Diisobutyl Phthalate (DIBP) is prepared by esterification process of isobutanol and phthalic anhydride. Its structural formula is C₆H₄(COOCH₂CH(CH₃)₂)₂. Refractive index is 1.488 - 1.492 (20 °C, D).

DIBP is odorless plasticizer and has excellent heat and light stability. It is the lowest cost plasticizer for cellulose nitrate. DIBP has lower density and freezing point than DBP (dibutyl phthalate, CAS No.: 84-74-2). It has similar properties as dibutyl phthalate and can be used as a substitute for it.

DIBP is used in nitro cellulose plastic, nail polish, explosive material, lacquer manufacturing and used with methyl methacrylate applications.

See also

• Phthalates
• Dibutyl phthalate (DBP)

External links

• International Chemical Safety Card 0829
• Human Health Hazard Assessment
• Diisobutyl phthalate degradation by Fenton treatment