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NORMAL BUTYL ACETATE Definition

20200325103356CWA1

NORMAL BUTYL ACETATE (also known as n-butyl acetate) is a chemical compound with a molecular formula of C6H12O2.  It is commonly used as a solvent in the production of lacquers, inks and adhesives.  This product is a colourless liquid that has a fruity banana odour.  This product is highly flammable with a flash point of 24° C and a flammability rating of 3.   It is highly miscible with all common organic solvents (alcohols, ketones, glycols, esters) but has only slight miscibility in water. NBA is also known as Butyl Acetate is an ester with characteristic fruity odor. BA has excellent solvent power for paints, resins, adhesives, polymers, oils and cellulose nitrate, In addition, it is used as a solvent for production of lacquers, coatings, plastics, artificial leather, cleaners and synthetic fruit flavoring. It may also be used manufacture of pharmaceutical industry. n-BA solvent is being offered for negative photoresist formulations. Solvent systems are necessary in the process for spin coating photosensitive (photoresist) materials evenly onto a silicon wafer. This coating process is followed by drying and pattern development by lithographic processes. The multilayered patterns form integrated circuits on the semiconductor chips. High-purity (low trace metals) specifications are required for the solvents to make acceptable semiconductor chips, and special handling and storage procedures are used to maintain the high-purity specifications. Also, special analytical tests are used to measure selected critical trace metals in parts-per-billion.

NORMAL BUTYL ACETATE is also known as butyl ethanoate, n-butyl acetate, 1-Butyl acetate


NORMAL BUTYL ACETATE Applications

  1. Used as a solvent in the production of lacquers and other products
  2. Used as a synthetic fruit flavoring in foods such as candy, ice cream, cheeses, and baked goods.
  3. Used in the manufacture of paints, leather and in the chemical and allied industries
  4. Fragrance ingredients
  5. LCD displays
  6. Process solvents
  7. Used in the production of perfumes.
  8. Used as an extractant in the manufacture of pharmaceutical preparations.
  9. Used in the manufacture of Penicillin-G, the principal component of many commercial antibiotics.
  10. Also used in the synthetic fruit flouring industry


BA CHARACTERISTICS

  1. Excellent resin solubility
  2. Moderately volatile
  3. High assay
  4. with excellent solvency for cellulose nitrate, polymers, resins and oils
  5. High Purity/Low Trace Metals
  6. Inert – Nonfood use
  7. Appearance colorless liquid
  8. Formula C6H12O2
  9. Molar Mass 116.16 g/mol
  10. Density 0.8825 g/cm3
  11. Melting Point −78°C (−108°F; 195 K)
  12. Boiling Point 126.1°C (259.0°F; 399.2 K)
  13. Flash Point 22°C (72°F; 295 K)
  14. Specific Gravity at 20/20°C           0.8826
  15. Solubility in Water 0.68 g/100 mL (20°C)
  16. Vapor Pressure 11.25 mmHg (25°C)
  17. CAS Number 123-86-4

Molecular weight                                                                                       116.2

Assay as n-Butyl acetate, min.b                                                                                                        99.5%


Color (Pt-Co scale), max.b                                                                                                             5

Specific gravity @ 20/20°Cb                                                                                                                0.882–0.884


Water content, max.b                                                                                                                            0.05%

Acidity, as acetic acidb                                                                                                                         0.01%


Alcohol content, max.b                                                                                                                       0.25%

Neat viscosity, cP @ 20°C                                                                             0.73


Refractive index @ 20°C                                                                               1.392–1.396

Hansen solubility parameters

 

Nonpolar Polar

Hydrogen bonding Total

Boiling range @ 760 torr, °C Initial

Dry point

 

7.7

1.8

3.1

8.5

 

124.0

129.0

 

 


Freezing point, °C                                                                                          —74.0

Flash point


Setaflash (closed cup), °C                                                                         27.0

Autoignition temperature, °C                                                                        407.0

Evaporation rate

Compared to n-Butyl acetate @ 1.0                                                          1.0

Vapor pressure @ 20°C, mm Hg                                                             1.39

Flammable limits in air, % by volume

 

Lower @ 38°C Upper @ 38°C

 

1.40

7.6

 

 

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