乙酸叔丁酯 tert-butyl acetate

Substance: TBAc - tert-Butyl acetate  540-88-5

1. Physical and chemical properties

Product name: tert-Butyl acetate
CAS No.: 540-88-5
Molecular Formula: C6H12O2
Molecular Weight: 116.16
Appearance form: colorless, clear, liquid

Melting/Freezing point: 62℃
Boiling point: 98℃
Flash point: 4.4℃（closed cup）
Density: 0.866 g/cm³（20℃）
UN No.: 1123

1. Parameters index
   Purity, (GC) ≥ 99.5%
   Water Content ≤ 0.05 %
   Acidity, (as Acetic Acid) ≤ 0.1 %
   Colour on despatch /(Pt-Co) ≤ 10
    
2. Applications
   TBAc solvent is a VOC(volatile organic compound)-exempt, non-HAP(hazardous air pollutant), urethane-grade solvent with low toxicity, It has excellent solvency for a variety of substances including nitrocellulose, acrylic, alkyd, polyester and urethane resins. TBAc solvent is substitute for variety of HAP and VOC solvents including toluene, xylene, esters, ketones and hydrocarbons.

Coatings, Inks, Adhesives: TBAc solvent finds use in decorative and industrial coating formulations, packaging inks and pressure-sensitive adhesives. It is a useful tool in the formulation of VOC-and HAP-compliant coatings, inks and adhesives. TBAc solvent is less volatile and flammable than exempt acetone and methyl acetate

TBAc solvent has similar evaporation rate and solvency as MEK,MIBK, ethyl and propyl acetate, and toluene in a variety of coating systems, including 2K urethanes, acrylics, nitrocellulose lacquers and baking enamels. Because of its superior resistance to amines, TBAc solvent can also be used in epoxy polyamide coatings as replacement for toluene.

• For solvent-based cleaning, including metal degreasing and specialized equipment cleansing, TBAc solvent improves the cleaning efficiency of toluene, mineral spirits and acetone on baked-on greasy soil and lithium grease. TBAc solvent is non-halogenated and cannot deplete the ozone layer. TBAc solvent shows very broad solvency. Its solvency characteristics generally match those of chlorinated solvents and hydrocarbons.
• Another area where TBAc solvent may replace other solvents is in photoresist formulations used in semiconductor processing. In these processes, it is used in positive photoresist formulations. TBAc solvent may also be used in solvent systems for cleaning and degreasing circuit boards and removing solder flux.

Other Applications: The properties listed in the previous section also support the use of TBAc solvent in agricultural and textile products. It is useful intermediate in the pharmaceutical industry.

1. Storage and handling
   Storage condition:

Keep container closed. Store in a cool, dark, well ventilated place. Store must be locked. Keep away from incompatible materials such as oxidizer storage.

Handling measures:

Good ventilation in the treatment. Wear suitable protective equipment. Smoke prevention. Keep away from heat / sparks / fire / hot surfaces. Prohibit smoking。 Take measures to prevent the accumulation of static electricity. Use explosion-proof equipment. Thoroughly wash hands and face after treatment.

1. Note
   The data contained in this publication are based on our current knowledge and experience. In view of the many factors that may affect processing and application of our product, these data do not relieve processors from carrying out their own investigations and tests; neither do these data imply any guarantee of certain properties, nor the suitability of the product for a specific purpose. Any descriptions, drawings, photographs, data, proportions, weights etc. given herein may change without prior information and do not constitute the agreed contractual quality of the product. It is the responsibility of the recipient of our products to ensure that any proprietary
   rights and existing laws and legislation are observed.