XYLENE, [MIXED ISOMERS]
|CAS Number||UN/NA Number|
|DOT Hazard Label||USCG CHRIS Code|
|NIOSH Pocket Guide||International Chem Safety Card|
|Health||2||Can cause temporary incapacitation or residual injury.|
|Flammability||3||Can be ignited under almost all ambient temperature conditions.|
|Instability||0||Normally stable, even under fire conditions.|
- Highly Flammable
HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. 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 the ground and collect in low or confined areas (sewers, basements, tanks, etc.). Vapor explosion hazard indoors, outdoors or in sewers. Those substances designated with a (P) may polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids will float on water. (ERG, 2020)
May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or asphyxiation. Runoff from fire control or dilution water may cause environmental contamination. (ERG, 2020)
No information available.
IMMEDIATE PRECAUTIONARY MEASURE: Isolate spill or leak area for at least 50 meters (150 feet) in all directions.
LARGE SPILL: Consider initial downwind evacuation for at least 300 meters (1000 feet).
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, 2020)
CAUTION: The majority of these products have a very low flash point. Use of water spray when fighting fire may be inefficient.
SMALL FIRE: Dry chemical, CO2, water spray or regular foam.
LARGE FIRE: Water spray, fog or regular foam. Avoid aiming straight or solid streams directly onto the product. If it can be done safely, move undamaged containers away from the area around the fire.
FIRE INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned master stream devices or monitor nozzles. Cool containers with flooding quantities of water until well after fire is out. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned master stream devices or monitor nozzles; if this is impossible, withdraw from area and let fire burn. (ERG, 2020)
ELIMINATE all ignition sources (no smoking, flares, sparks or flames) from immediate area. All equipment used when handling the product must be grounded. Do not touch or walk through spilled material. Stop leak if you can do it without risk. Prevent entry into waterways, sewers, basements or confined areas. A vapor-suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean, non-sparking tools to collect absorbed material.
LARGE SPILL: Dike far ahead of liquid spill for later disposal. Water spray may reduce vapor, but may not prevent ignition in closed spaces. (ERG, 2020)
Wear positive pressure self-contained breathing apparatus (SCBA). Structural firefighters' protective clothing provides thermal protection but only limited chemical protection. (ERG, 2020)
|QS = Tychem 2000 SFR|
|QC = Tychem 2000|
|SL = Tychem 4000|
|C3 = Tychem 5000|
|TF = Tychem 6000|
|TP = Tychem 6000 FR|
|RC = Tychem RESPONDER® CSM|
|TK = Tychem 10000|
|RF = Tychem 10000 FR|
|Xylene, mixed isomers||1330-20-7||Liquid||>480||>480||>480||>480||>480||>480|
Special Warning from DuPont: Tychem® and Tyvek® fabrics should not be used around heat, flames, sparks or in potentially flammable or explosive environments. Only...
Call 911 or emergency medical service. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Move victim to fresh air if it can be done safely. Give artificial respiration if victim is not breathing. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. Wash skin with soap and water. In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin. Keep victim calm and warm. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. (ERG, 2020)
AEGLs (Acute Exposure Guideline Levels)
|10 minutes||130 ppm||2500 ppm||7200 ppm|
|30 minutes||130 ppm||1300 ppm||3600 ppm|
|60 minutes||130 ppm||920 ppm||2500 ppm|
|4 hours||130 ppm||500 ppm||1300 ppm|
|8 hours||130 ppm||400 ppm||1000 ppm|
indicates value is 10-49% of LEL. Safety consideration against explosions must be taken into account.
indicates value is 50-99% of LEL. Extreme safety consideration against explosions must be taken into account.
ERPGs (Emergency Response Planning Guidelines)No ERPG information available.
PACs (Protective Action Criteria)
|Xylenes (1330-20-7)||130 ppm||920 ppm||2500 ppm||LEL = 9000 ppm|
|Xylene, m- (includes o- (95-47-6) and p- (106-42-3) isomers) (108-38-3)||130 ppm||920 ppm||2500 ppm||LEL = 11000 ppm|
EPA Consolidated List of Lists
|Regulatory Name||CAS Number/
313 Category Code
|CERCLA RQ||EPCRA 313
|Benzene, m-dimethyl-||108-38-3||1000 pounds||X||U239|
|Benzene, o-dimethyl-||95-47-6||1000 pounds||X||U239|
|Benzene, p-dimethyl-||106-42-3||100 pounds||X||U239|
|Xylene (mixed isomers)||1330-20-7||100 pounds||313||U239|
- "X" indicates that this is a second name for an EPCRA section 313 chemical already included on this consolidated list. May also indicate that the same chemical with the same CAS number appears on another list with a different chemical name.
(EPA List of Lists, 2022)
CISA Chemical Facility Anti-Terrorism Standards (CFATS)No regulatory information available.
OSHA Process Safety Management (PSM) Standard ListNo regulatory information available.
- BENZENE, M-DIMETHYL-
- BENZENE, O-DIMETHYL-
- BENZENE, P-DIMETHYL-
- 1,4-DIMETHYL BENZENE
- XYLENE (MIXED ISOMERS)
- XYLENE, [MIXED ISOMERS]
- XYLENES (META-XYLENE)
- XYLENES (ORTHO-XYLENE)
- XYLENES (ORTHO-XYLENE, META-XYLENE, PARA-XYLENE)
- XYLENES (PARA-XYLENE)
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