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TOLUENE SULFONIC ACID, LIQUID, WITH MORE THAN 5% FREE SULFURIC ACID

8 - Corrosive
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The Chemical Identifier fields include common identification numbers, the NFPA diamond U.S. Department of Transportation hazard labels, and a general description of the chemical. The information in CAMEO Chemicals comes from a variety of data sources.
CAS Number UN/NA Number
  • 104-15-4
DOT Hazard Label USCG CHRIS Code
  • Corrosive
NIOSH Pocket Guide International Chem Safety Card
none
NFPA 704
Diamond Hazard Value Description
1
3 2
W
Blue Health 3 Can cause serious or permanent injury.
Red Flammability 1 Must be preheated before ignition can occur.
Yellow Instability 2 Readily undergoes violent chemical changes at elevated temperatures and pressures.
White Special W Reacts violently or explosively with water.
Note: NFPA ratings shown are for sulfuric acid, CAS number 7664-93-9.
(NFPA, 2010)
General Description
Colorless to black solid. Odorless or nearly odorless. (USCG, 1999)

The Hazard fields include special hazard alerts air and water reactions, fire hazards, health hazards, a reactivity profile, and details about reactive groups assignments and potentially incompatible absorbents. The information in CAMEO Chemicals comes from a variety of data sources.
Reactivity Alerts
  • Strong Oxidizing Agent
  • Known Catalytic Activity
Air & Water Reactions
Water soluble.
Fire Hazard
Special Hazards of Combustion Products: Irritating oxides of sulfur may be formed. (USCG, 1999)
Health Hazard
Contact with eyes or skin causes severe irritation. Ingestion causes irritation of mouth and stomach. (USCG, 1999)
Reactivity Profile
TOLUENE SULFONIC ACID, LIQUID, WITH MORE THAN 5% FREE SULFURIC ACID reacts exothermically with chemical bases (for example: amine, amides, and inorganic hydroxides). The reactions can generate dangerously large amounts of heat in small spaces. Dissolution in water or dilution of concentrated solutions with water may generate significant heat. Reacts with sodium hypochlorite to produce chlorine gas. Can react with active metals, including iron and aluminum, and also many less active metals, to dissolve the metal and liberate hydrogen and/or toxic gases. Can initiate possibly violent polymerization in certain alkenes such as allyl chloride. Reacts with cyanide salts and compounds to release gaseous hydrogen cyanide. Flammable and/or toxic gases are also often generated by reactions with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and weak or strong reducing agents. Additional gas-generating reactions may occur with sulfites, nitrites, thiosulfates (to give H2S and SO3), dithionites (SO2), and carbonates: the carbon dioxide gas from the last is nontoxic but the heat and spattering from the reaction can be troublesome. Can catalyze (increase the rate of) chemical reactions. May burn but not ignited readily. Incompatible with carbides, bromates, chlorates, fulminates, picrates, and powdered metals [Haz. Chem. Data 1966]. Produces highly toxic fumes of oxides of sulfur when heated to decomposition.
Belongs to the Following Reactive Group(s)
Potentially Incompatible Absorbents

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
  • Expanded Polymeric Absorbents

The Response Recommendation fields include isolation and evacuation distances, as well as recommendations for firefighting, non-fire response, protective clothing, and first aid. The information in CAMEO Chemicals comes from a variety of data sources.
Isolation and Evacuation
Excerpt from ERG Guide 153 [Substances - Toxic and/or Corrosive (Combustible)]:

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 the immediate precautionary measure distance, in the downwind direction, as necessary.

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)
Firefighting
Fire Extinguishing Agents: Water (USCG, 1999)
Non-Fire Response
Neutralizing Agents for Acids and Caustics: Flush with water, rinse with dilute sodium bicarbonate or lime solution. (USCG, 1999)
Protective Clothing
Chemical goggles or face shield; rubber gloves (USCG, 1999)
DuPont Tychem® Suit Fabrics
No information available.
First Aid
EYES: wash thoroughly with copious amounts of water for at least 15 min.; call physician if irritation persists.

SKIN: wash thoroughly with large amounts of water for at least 15 min.

INGESTION: give large amount of water. (USCG, 1999)

The Physical Property fields include properties such as vapor pressure and boiling point, as well as explosive limits and toxic exposure thresholds The information in CAMEO Chemicals comes from a variety of data sources.
Chemical Formula:
  • C7H7SO3H (toluenesulfonic acid)
  • H2SO4 (sulfuric acid)
Flash Point: data unavailable
Lower Explosive Limit (LEL): data unavailable
Upper Explosive Limit (UEL): data unavailable
Autoignition Temperature: data unavailable
Melting Point: 221°F (USCG, 1999)
Vapor Pressure: data unavailable
Vapor Density (Relative to Air): data unavailable
Specific Gravity: 1.45 at 77°F (USCG, 1999)
Boiling Point: data unavailable
Molecular Weight: 172.2 (toluenesulfonic acid) (USCG, 1999)
Water Solubility: data unavailable
Ionization Energy/Potential: data unavailable
IDLH: data unavailable

AEGLs (Acute Exposure Guideline Levels)

No AEGL information available.

ERPGs (Emergency Response Planning Guidelines)

No ERPG information available.

PACs (Protective Action Criteria)

No PAC information available.

The Regulatory Information fields include information from the U.S. Environmental Protection Agency's Title III Consolidated List of Lists, the U.S. Cybersecurity and Infrastructure Security Agency's Chemical Facility Anti-Terrorism Standards, and the U.S. Occupational Safety and Health Administration's Process Safety Management of Highly Hazardous Chemicals Standard List (see more about these data sources).

EPA Consolidated List of Lists

No regulatory information available.

CISA Chemical Facility Anti-Terrorism Standards (CFATS)

No regulatory information available.

OSHA Process Safety Management (PSM) Standard List

No regulatory information available.

This section provides a listing of alternate names for this chemical, including trade names and synonyms.
  • AR-TOLUENESULFONIC ACID
  • CYZAC 4040
  • K-CURE 1040
  • METHYLBENZENESULFONIC ACID
  • 4-METHYLBENZENESULFONIC ACID
  • NACURE 1040
  • P-METHYLBENZENESULFONIC ACID
  • P-METHYLPHENYLSULFONIC ACID
  • P-TOLUENESULFONIC ACID
  • P-TOLUENESULPHONIC ACID
  • P-TOLYLSULFONIC ACID
  • P-TSA
  • TOLUENE SULFONIC ACID, LIQUID, WITH MORE THAN 5% FREE SULFURIC ACID
  • TOLUENE SULFONIC ACID, [LIQUID]
  • TOLUENE SULPHONIC ACID, LIQUID, WITH MORE THAN 5% FREE SULPHURIC ACID
  • TOLUENESULFONIC ACID
  • 4-TOLUENESULFONIC ACID
  • TOSIC ACID

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