Acetic anhydride
Flame
Corrosion
Skull and Crossbones
Exclamation Mark
Health Hazard
Hazard Statements
| Code | Statement | Hazard Class |
|---|---|---|
H226 |
Flammable liquid and vapor | Flammable liquids |
H302 |
Harmful if swallowed | Acute toxicity, oral |
H313 |
May be harmful in contact with skin | Acute toxicity, dermal |
H314 |
Causes severe skin burns and eye damage | Skin corrosion/irritation |
H318 |
Causes serious eye damage | Serious eye damage/eye irritation |
H331 |
Toxic if inhaled | Acute toxicity, inhalation |
H336 |
May cause drowsiness or dizziness | Specific target organ toxicity, single exposure; Narcotic effects |
H370 |
Causes damage to organs | Specific target organ toxicity, single exposure |
H372 |
Causes damage to organs through prolonged or repeated exposure | Specific target organ toxicity, repeated exposure |
Precautionary Statements
| Code | Statement |
|---|---|
P210 |
Keep away from heat, hot surface, sparks, open flames and other ignition sources. No smoking. |
P233 |
Keep container tightly closed. |
P240 |
Ground/bond container and receiving equipment. |
P241 |
Use explosion-proof [electrical/ventilating/lighting/.../] equipment. |
P242 |
Use only non-sparking tools. |
P243 |
Take precautionary measures against static discharge. |
P260 |
Do not breathe dust/fume/gas/mist/vapors/spray. |
P261 |
Avoid breathing dust/fume/gas/mist/vapors/spray. |
P264 |
Wash hands [and ...] thoroughly after handling. |
P264+P265 |
Wash hands [and ...] thoroughly after handling. Do not touch eyes. |
P270 |
Do not eat, drink or smoke when using this product. |
P271 |
Use only outdoors or in a well-ventilated area. |
P280 |
Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/... |
P301+P317 |
IF SWALLOWED: Get medical help. |
P301+P330+P331 |
IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. |
P302+P317 |
(Deleted) IF ON SKIN: Get medical help. |
P302+P361+P354 |
IF ON SKIN: Take off Immediately all contaminated clothing. Immediately rinse with water for several minutes. |
P303+P361+P353 |
IF ON SKIN (or hair): Take off Immediately all contaminated clothing. Rinse SKIN with water [or shower]. |
P304+P340 |
IF INHALED: Remove person to fresh air and keep comfortable for breathing. |
P305+P354+P338 |
IF IN EYES: Immediately rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing. |
P308+P316 |
IF exposed or concerned: Get emergency medical help immediately. |
P316 |
Get emergency medical help immediately. |
P317 |
Get emergency medical help. |
P319 |
Get medical help if you feel unwell. |
P321 |
Specific treatment (see information on this label and safety datasheet)). |
P330 |
Rinse mouth. |
P363 |
Wash contaminated clothing before reuse. |
P370+P378 |
In case of fire: Use ... to extinguish. |
P403+P233 |
Store in a well-ventilated place. Keep container tightly closed. |
P403+P235 |
Store in a well-ventilated place. Keep cool. |
P405 |
Store locked up. |
P501 |
Dispose of contents/container to ... |
Exposure Limits
| OSHA PEL | 5 ppm |
| NIOSH REL | Ceiling: 5 ppm |
| NIOSH IDLH | 200 ppm |
| Skin Notation | Yes — can be absorbed through skin |
Physical Properties
Colorless liquid with a strong, pungent, vinegar-like odor.
| Boiling Point | 282°F |
| Flash Point | 120°F |
| Vapor Pressure | 4 mmHg |
| Specific Gravity | 1.08 |
NFPA 704 Diamond
2
3
1
Health
Fire
Reactivity
Target Organs
skin, eye, and respiratory irritation
Synonyms
acetic acid anhydride; acetic oxide; acetyl oxide; ethanoic anhydride
Data Sources
- GHS Classification: PubChem CID 7918
- OSHA PEL: OSHA Occupational Chemical Database
- NIOSH REL/IDLH: NIOSH Pocket Guide
Disclaimer: This information is compiled from public regulatory databases for reference only. It does not replace the manufacturer's Safety Data Sheet (SDS). Always consult the official SDS for your specific product before handling chemicals.
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