tert-Butyl acetate

  • tert-Butyl ester of acetic acid
Formula
CH3COOC(CH3)3
Structure
Description
Colorless liquid with a characteristic acetate ester fruity odor.
Uses
Solvent, gasoline additive.

Registry Numbers and Inventories.
CAS
540-88-5
EC (EINECS/ELINCS)
208-760-7
EC Index Number
607-026-00-7
EC Class
Highly flammable; Repeated exposure may cause skin dryness or cracking
R 11 66
S 16 23 25 29 33
RTECS
AF7400000
RTECS class
Primary Irritant
UN (DOT)
1123
Merck
13,1536
Beilstein/Gmelin
1699506
Beilstein Reference
4-02-00-00151
Swiss Giftliste 1
G-3350
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C6H12O2
Formula mass
116.16
Melting point, °C
90 - 97
Boiling point, °C
98
Vapor pressure, mmHg
47
Vapor density (air=1)
4.0
Saturation Concentration
248 g/m3 (25 C)
Odor Threshold Odor threshold Detection in water 4 ppb.
Density
0.8664 g/cm3 (18 C)
Solubility in water
Insoluble
Surface tension
22.45 g/s2 (20 C)
Refractive index
1.39469
Partition coefficient, pKow
1.76
Heat of vaporization
38.36 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
B2.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Wash clothing before reuse. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, strong acids, nitrates, stong alkalies.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
1
Upper exp. limit, %
7.3
Lower exp. limit, %
1.3
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.
Fire potential
Very flammable. Flammable liquid.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Toxic gases and vapors (such as carbon monoxide) may be released in a fire involving tert-butyl acetate.
Health
1
 
Flammability
4
 
 
Reactivity
0
 

Health.
Exposure limit(s)
NIOSH REL: TWA 200 ppm (950 mg/m3) OSHA PEL: TWA 200 ppm (950 mg/m3) IDLH 1500 ppm [10%LEL]
Poison_Class
5
Exposure effects
Prolonged or repeated skin contact may cause dermatitis.
   Ingestion
May cause irritation of the digestive tract. May cause gastrointestinal irritation with nausea, vomiting and diarrhea. Ingestion of large amounts may cause CNS depression.
   Inhalation
May cause respiratory tract irritation. Aspiration may lead to pulmonary edema. Vapors may cause dizziness or suffocation. May cause burning sensation in the chest.
   Skin
May cause irritation and dermatitis. May cause cyanosis of the extremities.
   Eyes
May cause eye irritation. May cause chemical conjunctivitis and corneal damage.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1123
Response guide
Hazard class
3
Packing Group
II; III
 
USCG CHRIS Code
BYA
 
HS Code
2915 39 90
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
P