TECHNICAL DATA
TBAc鈩? Solvent (Tert-Butyl Acetate)
CAS No. 540-88-5
Molecular Weight = 116.2
TYPICAL PROPERTIES, Continued
DESCRIPTION
鈥? Maximum Incremental Reactivity (MIR)鈥?0.20g ozone/
TBAc solvent is Lyondell Chemical Company鈥檚 brand of
gTBAc
tert-butyl acetate, a VOC (volatile organic compound)-
鈥? Dielectric Constant (DIC @20掳C, cyclohexane).. 1.94
exempt1, non-HAP (hazardous air pollutant), urethane-
鈥? Solubility Parameter (Total Hansen) ..................... 7.7
grade solvent with low toxicity. It has a characteristic ester
鈥? Surface Tension (Dynes/cm) @ 20掳C (68掳F) ...... 22.4
odor and is soluble in water to the extent of 0.3% at 20掳C. It
鈥? Electrical Resistivity (megaOhms) ...................... 23.8
has excellent solvency for a variety of substances including
鈥? Viscosity (centistokes) @20掳C (68掳F)................. <1.2
nitrocellulose, acrylic, alkyd, polyester and urethane resins.
TBAc solvent is a substitute for a variety of HAP and VOC
鈥? Vapor Pressure @ 25掳C (mm Hg) ......................... 34
solvents including toluene, xylene, esters, ketones, and
hydrocarbons.
APPLICATIONS
Coatings, Inks, Adhesives: TBAc solvent finds use in
PRODUCT IDENTIFICATION
decorative and industrial coating formulations, packaging
Chemical Name ............ Acetic acid, 1,1-dimethylethyl ester
inks, and pressure sensitive adhesives. It is a useful tool
Chemical Family ............................................ Aliphatic Ester
in the formulation of VOC- and HAP-compliant coatings
Other Names ............................. Acetic Acid, tert-butyl ester
inks and adhesives. TBAc solvent is less volatile and
......................................................1,1-Dimethylethyl acetate
flammable than exempt acetone and methyl acetate.
............................................... Tertiary-butyl alcohol, acetate
.................................................. 2-Acetoxy-2-methylpropane
TBAc solvent has a similar evaporation rate and
Chemical Formula ...................................................C6H12O2 solvency as MEK, MIBK, ethyl and propyl acetate, and
toluene in a variety of coating systems, including 2K
urethanes, alkyds, acrylics, nitrocellulose lacquers and
PRODUCT SPECIFICATIONS*
baking enamels. Because of its superior resistance to
Property Specifications Test Method
amines, TBAc solvent can also be use in epoxy
Specific Gravity polyamide coatings as a replacement for toluene.
0.867 ASTM D-891
@ 25/25掳C
Cleaners: For solvent-based cleaning, including metal
Boiling Point @
ASTM D-1078 degreasing and specialized equipment cleansing, TBAc
760mm Hg 98掳C
solvent improves the cleaning efficiency of toluene,
Acidity, wt. % as mineral spirits and acetone on baked-on greasy soil and
0.01 ASTM D-1613
Acetic acid, max. lithium grease. TBAc solvent is non-halogenated and
cannot deplete the ozone layer.
Water,
0.05 ASTM E-203
Wt. %, max.
TBAc solvent shows very broad solvency. Its solvency
Color, characteristics generally match those of chlorinated
10 ASTM E-1209
APHA, max. solvents and hydrocarbons.
GC Purity,
99.5 ACC 8314 Electronics: Another area where TBAc solvent may
Wt. %, min.
replace other solvents is in photoresist formulations used
*For the most current product specification, please call 1-888-
in semiconductor processing. In these processes, it is
777-0232 in North America; 33-3-44-24-9204 in Europe or
used in positive photoresist formulations.
check www.tbac.com
TBAc solvent may also be used in solvent systems for
TYPICAL PROPERTIES
鈥? Autoignition temperature (掳C) .................................. 518 cleaning and degreasing circuit boards and removing
鈥? Density (pounds per gallon at 25掳C) ....................... 7.24 solder flux.
鈥? Evaporation Rate (BuAc = 100) ............................... 280 Other Applications: The properties listed in the previous
鈥? Flammability Limits (Lower/Upper Vol. %) ...... 1.26/6.88 section also support the use of TBAc solvent in agricultural
鈥? Flash Point (Tag Closed Cup) 掳C (掳F).................4.4(40) and textile products. It is a useful intermediate in the
鈥? Solubility by weight in water @ 20掳C......................0.3% pharmaceutical industry.
For more technical information or formulation assistance, please see contact information on last page.
www.lyondell.com
TECHNICAL DATA
STORAGE Refer to the Material Safety Data Sheet for more specific
General industry practice is to store TBAc solvent in carbon information.
steel vessels.
REGULATORY STATUS
Store only in tightly closed, properly vented containers The US EPA has added tertiary butyl acetate to the list of
VOC-exempt 1 compounds based on its negligible
away from heat, sparks, open flame or strong oxidizing
agents. Use only non-sparking tools. Ground containers photochemical reactivity and negligible contribution to
before beginning transfer. Electrical equipment should tropospheric ozone.
conform to national electric code.
TBAc solvent is not subject to the reporting requirement of
Handle empty containers carefully. Store in properly lined CERCLA or the reporting requirements established by
steel or stainless steel to avoid slight discoloration from SARA Title III, section 313 and 40CFR372.
mild steel. This product may absorb water if exposed to air.
TBAc solvent is on the U.S. TSCA inventory, Canadian
SAFETY AND HANDLING DSL (Jan 26, 1991), Australian AICS, Korean ECL (KE-
TBAc solvent has a flash point of 40掳F. It is a flammable 04180), European EINECS (208-760-7) and ENCS (2-
liquid as defined under SARA Title III, section 311/312 731X), Swiss Giftliste 1 (G-3350), PICCS, and ASIA-PAC
hazard category but is not subject to the reporting lists.
requirements of SARA Title III, section 313.
Refer to the Material Safety Data Sheet for more specific
Undue exposure or spillage should be strictly avoided as a information.
matter of good practice. Refer to the Material Safety Data
Sheet for more specific information. MATERIAL COMPATIBILITY GUIDELINES
Stainless steel is recommended for valves, pumps and
filters. Teflon庐2 is suitable for gaskets. Natural rubber,
Hazard ratings are summarized as follows:
ABS, silicone, Viton and Neoprene are known to swell in
NPCA HMIS NFPA contact with TBAc solvent. Information from material
Health................................................. 1 .........................1 suppliers and specific conditions of contact should be
Flammability....................................... 3 .........................3 considered in the selection of suitable materials.
Reactivity ........................................... 0 .........................0
1
Personal protection recommendation should be made with The U.S. EPA has published a rule excluding tertiary butyl
consideration of specific work place conditions. The health acetate from the Federal definition of a VOC (40 C.F.R. 搂
hazard rating is based on eye irritation potential. 51.100(s)(5); see also 69 FR 69304).
2
TOXICOLOGICAL EVALUATION Teflon is a registered trademark of E. I. duPont de
TBAc solvent has a low degree of acute toxicity. The Nemours and Company.
oral LD50 is 4.5 g/kg and the inhalation LC50 for 6
hours of exposure is approximately 4200 ppm. It is a
moderate skin and eye irritant. A battery of genotoxicity
studies was negative. Inhalation of 1600 ppm TBAc
solvent by rats for two weeks resulted in unsteady gait
and liver toxicity; increased hyaline droplets were found
in the kidneys of male rats exposed at 100, 400 and
1600 ppm.
Pharmacokinetic studies indicate a portion of TBAc
solvent is metabolized to its parent alcohol, TBA. TBA
has been demonstrated to cause alpha-2U-globulin
toxicity in male rat kidneys. As a matter of safe
practice, ingestion and prolonged skin contact should
be avoided.
For more technical information or formulation assistance, please see contact information on last page.
www.lyondell.com
TECHNICAL DATA
Visit us at our Web site: www.lyondell.com or www.tbac.com
Email: tbac@lyondell.com
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supersedes 2925-V1-1204
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