Eastman™ IBIB CAS No.97-85-8

Application/Uses

- Coatings - Automotive OEM
- Coatings - General Industrial
- Coatings - Industrial Wood
- Coatings - Misc. (Thinners and Purge Solvents)
- Coatings - Transportation

Key Attributes

- 42% biodegradation (28 days)
- Good solvent activity
- High blush resistance
- High electrical resistance
- Low density
- Low MIR value
- Low surface tension
- Low water solubility
- Low-cost retarder solvent
- Non-HAP
- Non-SARA
- REACH compliant
- Slow evaporation rate
- Urethane grade

Product Description

Eastman™ IBIB (Isobutyl Isobutyrate) is an economical retarder solvent that is used in nitrocellulose lacquers, coatings for plastic substrates, and high-solids coatings. It is a slow-evaporating solvent with good flow and leveling characteristics, and good blush resistance. It is an economical, urethane grade, active solvent for nitrocellulose. The low surface tension of IBIB is valuable in applications where improved wetting of the substrate is needed. With low water miscibility, IBIB is an excellent retarder solvent for moisture-sensitive coatings such as 2-K polyurethanes. IBIB has high electrical resistance, which is helpful in adjusting the resistivity of coatings applied using electrostatic spray equipment.

Typical Properties

Property	Typical Value, Units
Molecular Weight	144.22
Empirical Formula	C8H16O2
ColorPt-Co	15 max.
Specific Gravity@ 20°C/20°C	0.855
Wt/Vol@ 20°C	0.86 kg/L (7.13 lb/gal)
Solubility in Water, @ 20°C Water in, @ 20°C	<0.1 wt % <0.2 wt %
Evaporation Rate (n-butyl acetate = 1) (ether = 1)	0.43 30.2
Dilution Ratio Toluene VMP Naphtha	1.5 0.8
Refractive Index@ 20°C	1.4
Vapor Density(air = 1)	5
Vapor Pressure @ 20°C @ 55°C	3.2 mm Hg 3.3 KPa
Boiling Point@ 760 mm Hg	144-151°C (291-304°F)
Freezing Point	-80°C (-112°F)
Flash PointTag Closed Cup	40°C (104°F)
Fire Point	46°C (115°F)
Flammability Limits in Air, % by Volume Lower @ 93°C Upper @ 93°C	1 Vol % 7.6 Vol %
Autoignition Temperature	432°C (810°F)
Azeotropes BP Wt % Water	95.5°C (203.9°F) 39.4 wt %
Hansen Solubility Parameters Nonpolar Polar Hydrogen Bonding Total	7.4 1.4 2.9 8.1
Surface Tension@ 20°C	23.2 dynes/cm
Blush Resistance@ 80°F (26.7°C)	92% RH
Electrical Resistance	>20 Megohms
NFPA Classification 30	IC
Expansion Coefficient, per °C@ 20°C	0.0011
Critical Temperature	328.8°C
Critical Pressure	25.7 ATM
Critical Volume	494 ml/g•mol
Heat of Vaporization	9021 cal/g•mol
Heat of Combustion	-1073 kcal/g•mol
Liquid Heat Capacity@ 25°C	62.55 cal/(g*mol)(°C)
Liquid Viscosity@ 25°C	0.9 cP (mPa•s)
Nitrocellulose Solubility	Active
Maximum Incremental Reactivity (MIR)	0.64
Acidityas Acetic Acid	0.01 wt % max.
Assay	98.0 wt % min.

Comments

Properties reported here are typical of average lots. Eastman makes no representation that the material in any particular shipment will conform exactly to the values given.

Eastman and its marketing affiliates shall not be responsible for the use of this information, or of any product, method, or apparatus mentioned, and you must make your own determination of its suitability and completeness for your own use, for the protection of the environment, and for the health and safety of your employees and purchasers of your products. No warranty is made of the merchantability of fitness of any product, and nothing herein waives any of the Seller's conditions of sale.