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| | DL-sec-Butyl acetate Basic information |
| | DL-sec-Butyl acetate Chemical Properties |
| Melting point | −99 °C(lit.) | | Boiling point | 111-112 °C(lit.) | | density | 0.872 g/mL at 25 °C(lit.) | | vapor density | 4 (vs air) | | vapor pressure | 11.0 at 25 °C (Abraham, 1984) | | refractive index | n20/D 1.389(lit.) | | Fp | 61 °F | | storage temp. | Flammables area | | solubility | alcohol: soluble(lit.) | | form | Colorless liquid | | Specific Gravity | 0.873 (20/4℃) | | color | Colourless | | Odor | pleasant smell | | Odor Threshold | 0.0024ppm | | Odor Type | solvent | | explosive limit | 7.5% | | Water Solubility | 3 g/100 mL (20 ºC) | | Merck | 14,1536 | | BRN | 1720689 | | Henry's Law Constant | (x 10-4 atmm3/mol):
1.91 at 20 °C (approximate - calculated from water solubility and vapor pressure) | | Exposure limits | NIOSH REL: TWA 200 ppm (950 mg/m3), IDLH 1,700 ppm; OSHA PEL:
TWA 200 ppm; ACGIH TLV: TWA 200 ppm (adopted). | | Cosmetics Ingredients Functions | SKIN CONDITIONING
SOLVENT | | InChI | 1S/C6H12O2/c1-4-5(2)8-6(3)7/h5H,4H2,1-3H3 | | InChIKey | DCKVNWZUADLDEH-UHFFFAOYSA-N | | SMILES | CCC(C)OC(C)=O | | LogP | 1.720 | | CAS DataBase Reference | 105-46-4(CAS DataBase Reference) | | NIST Chemistry Reference | Acetic acid, 1-methylpropyl ester(105-46-4) | | EPA Substance Registry System | sec-Butyl acetate (105-46-4) |
| | DL-sec-Butyl acetate Usage And Synthesis |
| Chemical Properties | Sec-Butyl acetate is a colorless liquid with a pleasant odor. The vapor mixes well with air,
and become explosive mixtures. It reacts with strong oxidants, strong bases, strong acids,
and nitrates, causing fi re and explosion hazard. | | Chemical Properties | Butyl acetates are colorless or yellowish
liquids with pleasant, fruity odors. There are 4 isomers. | | Physical properties | Clear, colorless liquid with a pleasant odor. Odor threshold concentration in air is 2.4 ppbv (Nagata
and Takeuchi, 1990). | | Uses | In solvents, especially lacquer solvents;
textile sizes and paper coatings | | Uses | sec-Butyl acetate is used in organic synthesis, catalytic agent, petrochemical additive. | | Uses | Solvent for nitrocellulose lacquers, thinners,
nail enamels, leather finishes. | | Production Methods | sec-Butyl acetate is prepared from sec-butanol and acetic
anhydride. It is also prepared from 2-butene under
pressure and heated to 115–120C with an excess of glacial
acetic acid containing 10% sulfuric acid. | | Synthesis Reference(s) | Journal of the American Chemical Society, 77, p. 2287, 1955 DOI: 10.1021/ja01613a077 | | General Description | Watery colorless liquid with a pleasant, fruity odor. Floats on water. Produces irritating vapor. | | Air & Water Reactions | Highly flammable. Water soluble. | | Reactivity Profile | DL-sec-Butyl acetate is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. Dissolves rubber and plastics [USCG, 1999]. | | Hazard | Flammable, dangerous fire risk. Eye and
upper respiratory tract irritant. | | Health Hazard | Headaches, dizziness, nausea, irritation of respiratory passage and eyes. | | Health Hazard | During prolonged occupational exposure, sec-butyl acetate causes health effects. The
symptoms of toxicity include irritation to the skin and eyes. Exposures to high concentra tions of sec-butyl acetate irritate the nose and throat causing coughing and respiratory | | Chemical Reactivity | Reactivity with Water: No reaction; Reactivity with Common Materials: No reactions; Stability During Transport: Stable; Neutralizing Agents for Acids and Caustics: Not pertinent; Polymerization: Not pertinent; Inhibitor of Polymerization: Not pertinent. | | Safety Profile | An irritant and allergen.
See also ESTERS. Flammable liquid. To
fight fire, use alcohol foam, CO2, dry
chemical. When heated to decomposition it
emits acrid and irritating fumes. | | Potential Exposure | n-Butyl acetate is an important solvent
in the production of lacquers, leather and airplane dopes,
and perfumes. It is used as a solvent and gasoline additive.
sec-Butyl acetate is used as a widely used solvent for
nitrocellulose, nail enamels and many different purposes.
tert-Butyl acetate is common industrial solvent used in the
making of lacquers, artificial leather, airplane dope, perfume; and as a food additive. Isobutyl acetate is used as a
solvent and in perfumes and artificial flavoring materials | | Carcinogenicity | sec-Butyl acetate is not listed as
a carcinogen by ACGIH, California Prop 65, IARC, NTP,
or OSHA. | | Environmental fate | Photolytic. The rate constant for the reaction of sec-butyl acetate and OH radicals in the
atmosphere at 300 K is 3.4 x 10-12 cm3/moleculesec (Hendry and Kenley, 1979).
Chemical/Physical. Slowly hydrolyzes in water forming sec-butyl alcohol and acetic acid. | | Shipping | UN1123 Butyl acetates, Hazard Class: 3; Labels:
3—Flammable liquid. | | Incompatibilities | All butyl acetates are incompatible with
nitrates, strong oxidizers; strong alkalies; strong acids.
Butyl acetates may form explosive mixture with air; reacts
with water, on standing, to form acetic acid and n-butyl
alcohol. Violent reaction with strong oxidizers and
potassium-tert-butoxide. Dissolves rubber, many plastics,
resins and some coatings. May accumulate static electrical
charges, and may cause ignition of its vapors | | Toxics Screening Level | The initial threshold screening level (ITSL) for Sec-Butyl Acetate is 2400 μg/m3 with eight-hour averaging time. | | Waste Disposal | Dissolve or mix the material
with a combustible solvent and burn in a chemical
incinerator equipped with an afterburner and scrubber.
All federal, state, and local environmental regulations
must be observed. | | Precautions | During handling of sec-butyl acetate, occupational workers should avoid use of open
flames, sparks, remove all ignition sources, and smoking. The vapor of sec-butyl acetate
mixes well with air, and easily forms explosive mixtures. Workers should avoid using
compressed air for fi lling, discharging, or handling. |
| | DL-sec-Butyl acetate Preparation Products And Raw materials |
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