|CAS Number||UN/NA Number||DOT Hazard Label||USCG CHRIS Code|
|NIOSH Pocket Guide||International Chem Safety Card|
|Health||3||Can cause serious or permanent injury.|
|Flammability||2||Must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur.|
|Instability||1||Normally stable but can become unstable at elevated temperatures and pressures.|
Behavior in Fire: Dangerous when exposed to heat or fire. (USCG, 1999)
Use caution: Liquids with this reactive group classification have been known to react with the absorbents listed below. More info about absorbents, including situations to watch out for...
- Cellulose-Based Absorbents
- Mineral-Based & Clay-Based Absorbents
As an immediate precautionary measure, isolate spill or leak area in all directions for at least 50 meters (150 feet) for liquids and at least 25 meters (75 feet) for solids.
SPILL: Increase, in the downwind direction, as necessary, the isolation distance shown above.
FIRE: If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions. (ERG, 2016)
When material is not involved in fire, do not use water on material itself.
SMALL FIRE: Dry chemical or CO2. Move containers from fire area if you can do it without risk.
LARGE FIRE: Flood fire area with large quantities of water, while knocking down vapors with water fog. If insufficient water supply: knock down vapors only.
FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Cool containers with flooding quantities of water until well after fire is out. Do not get water inside containers. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. (ERG, 2016)
Fully encapsulating, vapor-protective clothing should be worn for spills and leaks with no fire. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Use water spray to reduce vapors; do not put water directly on leak, spill area or inside container. Keep combustibles (wood, paper, oil, etc.) away from spilled material.
SMALL SPILL: Cover with DRY earth, DRY sand or other non-combustible material followed with plastic sheet to minimize spreading or contact with rain. Use clean, non-sparking tools to collect material and place it into loosely covered plastic containers for later disposal. Prevent entry into waterways, sewers, basements or confined areas. (ERG, 2016)
Eyes: Wear appropriate eye protection to prevent eye contact.
Wash skin: The worker should immediately wash the skin when it becomes contaminated.
Remove: Work clothing that becomes wet or significantly contaminated should be removed and replaced.
Change: No recommendation is made specifying the need for the worker to change clothing after the work shift.
Provide: Eyewash fountains should be provided in areas where there is any possibility that workers could be exposed to the substance; this is irrespective of the recommendation involving the wearing of eye protection. Facilities for quickly drenching the body should be provided within the immediate work area for emergency use where there is a possibility of exposure. [Note: It is intended that these facilities provide a sufficient quantity or flow of water to quickly remove the substance from any body areas likely to be exposed. The actual determination of what constitutes an adequate quick drench facility depends on the specific circumstances. In certain instances, a deluge shower should be readily available, whereas in others, the availability of water from a sink or hose could be considered adequate.] (NIOSH, 2016)
|QS = Tychem 2000 SFR|
|QC = Tychem 2000|
|SL = Tychem 4000|
|C3 = Tychem 5000|
|TF = Tychem 6000|
|TP = Tychem 6000 FR|
|BR = Tychem 9000|
|RC = Tychem RESPONDER® CSM|
|TK = Tychem 10000|
|RF = Tychem 10000 FR|
|Acetic anhydride (>95%)||108-24-7||Liquid||48||>480||>480||>480||>480||>480||>480|
A blank cell indicates the fabric has not been tested. The fabric may or may not offer barrier.
Special Warnings from DuPont
- Serged and bound seams are degraded by some hazardous liquid chemicals, such as strong acids, and should not be worn when these chemicals are present.
CAUTION: This information is based upon technical data that
DuPont believes to be reliable. It is subject to revision as
additional knowledge and experience are gained. DuPont makes no
guarantee of results and assumes no obligation or liability...
... in connection with this information. It is the user's responsibility to determine the level of toxicity and the proper personal protective equipment needed. The information set forth herein reflects laboratory performance of fabrics, not complete garments, under controlled conditions. It is intended for informational use by persons having technical skill for evaluation under their specific end-use conditions, at their own discretion and risk. Anyone intending to use this information should first verify that the garment selected is suitable for the intended use. In many cases, seams and closures have shorter breakthrough times and higher permeation rates than the fabric. Please contact DuPont for specific data. If fabric becomes torn, abraded or punctured, or if seams or closures fail, or if attached gloves, visors, etc. are damaged, end user should discontinue use of garment to avoid potential exposure to chemical. Since conditions of use are outside our control, we make no warranties, express or implied, including, without limitation, no warranties of merchantability or fitness for a particular use and assume no liability in connection with any use of this information. This information is not intended as a license to operate under or a recommendation to infringe any patent or technical information of DuPont or others covering any material or its use.
SKIN: IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. IMMEDIATELY call a hospital or poison control center even if no symptoms (such as redness or irritation) develop. IMMEDIATELY transport the victim to a hospital for treatment after washing the affected areas.
INHALATION: IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used; if not available, use a level of protection greater than or equal to that advised under Protective Clothing.
INGESTION: DO NOT INDUCE VOMITING. Corrosive chemicals will destroy the membranes of the mouth, throat, and esophagus and, in addition, have a high risk of being aspirated into the victim's lungs during vomiting which increases the medical problems. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. IMMEDIATELY transport the victim to a hospital. If the victim is convulsing or unconscious, do not give anything by mouth, ensure that the victim's airway is open and lay the victim on his/her side with the head lower than the body. DO NOT INDUCE VOMITING. Transport the victim IMMEDIATELY to a hospital. (NTP, 1992)
AEGLs (Acute Exposure Guideline Levels)No AEGL information available.
ERPGs (Emergency Response Planning Guidelines)
|Acetic Anhydride (108-24-7)||0.5 ppm||15 ppm||100 ppm|
PACs (Protective Action Criteria)
|Acetic anhydride (108-24-7)||0.5 ppm||15 ppm||100 ppm||LEL = 27000 ppm|
EPA Consolidated List of Lists
|Regulatory Name||CAS Number/
313 Category Code
|CERCLA RQ||EPCRA 313
|Acetic anhydride||108-24-7||5000 pounds|
(EPA List of Lists, 2015)
DHS Chemical Facility Anti-Terrorism Standards (CFATS)No regulatory information available.
OSHA Process Safety Management (PSM) Standard ListNo regulatory information available.
Alternate Chemical Names
- ACETIC ACID ANHYDRIDE
- ACETIC ACID, ANHYDRIDE (9CI)
- ACETIC ANHYDRIDE
- ACETIC OXIDE
- ACETYL ACETATE
- ACETYL ANHYDRIDE
- ACETYL ETHER
- ACETYL OXIDE
- ETHANOIC ANHYDRATE
- ETHANOIC ANHYDRIDE