tert-Butyl acetate |
Synonyms & Trade Names tert-Butyl ester of acetic acid |
CAS No. 540-88-5 |
RTECS No. AF7400000 |
DOT ID & Guide 1123 129 |
FormulaCH3COOC(CH3)3 |
Conversion 1 ppm = 4.75 mg/m3 |
IDLH 1500 ppm [10%LEL]
See: 540885 |
Exposure Limits NIOSH REL: TWA 200 ppm (950 mg/m3)
OSHA PEL: TWA 200 ppm (950 mg/m3) |
Measurement Methods
NIOSH 1450;
OSHA 7
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with a fruity odor. |
MW: 116.2 |
BP: 208°F |
FRZ: ? |
Sol: Insoluble |
VP: ? |
IP: ? |
Sp.Gr: 0.87 |
Fl.P: 72°F |
UEL: ? |
LEL: 1.5% |
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| Class IB Flammable Liquid: Fl.P. below 73°F and BP at or above 100°F. |
Incompatibilities & Reactivities Nitrates; strong oxidizers, alkalis & acids |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms Itch, inflammation eyes; irritation upper resp tract; headache; narcosis; dermatitis |
Target Organs respiratory system, eyes, skin, central nervous system |
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Personal Protection/Sanitation (See protection codes)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet (flammable)
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush promptly
Breathing: Respiratory support
Swallow: Medical attention immediately |
Respirator Recommendations NIOSH/OSHA Up to 1500 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode£
(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)£
(APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece Emergency or planned entry into unknown concentrations or IDLH conditions:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape:
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
Any appropriate escape-type, self-contained breathing apparatus
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 1445
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