Section 1 - Chemical Product ? MSDS Name:p-Toluenesulfonic Acid Monohydrate Material Safety Data Sheet
Synonym:Benzenesulfonic acid, 4-methyl-, monohydrate; Toluene, 4-sulfonic acid, monohydrate; PTSA monohydrate
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS| CAS# | Chemical Name | content | EINECS# |
| 104-15-4 | p-Toluenesulfonic acid monohydrate | > 97.5 | unlisted |
Hazard Symbols: XI
Risk Phrases: 36/37/38
Section 3 - HAZARDS IDENTIFICATION ? EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin.Hygroscopic (absorbs moisture from the air).
Potential Health Effects
Eye:
Causes severe eye irritation and possible burns.
Skin:
Causes skin irritation. Not expected to cause an allergic skin reaction.
Ingestion:
May be harmful if swallowed.
Inhalation:
Dust is irritating to the respiratory tract.
Chronic:
Chronic exposure may cause effects similar to those of acute exposure.
Section 4 - FIRST AID MEASURES ? Eyes: In case of contact, immediately flush eyes with plenty of water for at least 15 minutes. Get medical aid immediately.
Skin:
In case of contact, flush skin with plenty of water. Remove contaminated clothing and shoes. Get medical aid if irritation develops and persists. Wash clothing before reuse.
Ingestion:
If swallowed, do not induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an unconscious person. Get medical aid.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Section 5 - FIRE FIGHTING MEASURES ? General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. This material in sufficient quantity and reduced particle size is capable of creating a dust explosion. Contact with metals may evolve flammable hydrogen gas.
Extinguishing Media:
Use water spray, dry chemical, or carbon dioxide.
Section 6 - ACCIDENTAL RELEASE MEASURES ? General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Provide ventilation.
Section 7 - HANDLING and STORAGE ? Handling:
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Minimize dust generation and accumulation. Keep container tightly closed. Avoid breathing dust. Do not get in eyes. Avoid contact with skin and clothing.
Storage:
Store in a cool, dry, well-ventilated area away from incompatible substances.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION ? Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 104-15-4: CAS# 6192-52-5: Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES ?
Physical State: Crystals
Color: white
Odor: none reported
pH: Not applicable.
Vapor Pressure: 0.0000027 mm Hg @ 25 deg C
Viscosity: Not available.
Boiling Point: 140 deg C @ 20 mmHg
Freezing/Melting Point: 103 deg C
Autoignition Temperature: 350 deg C ( 662.00 deg F)
Flash Point: 180 deg C ( 356.00 deg F)
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble.
Specific Gravity/Density: Not available.
Molecular Formula: C7H8O3S.H2O
Molecular Weight: 190.22
Section 10 - STABILITY AND REACTIVITY ? Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
Dust generation, moisture, excess heat.
Incompatibilities with Other Materials:
Strong oxidizing agents, strong bases, metals.
Hazardous Decomposition Products:
Carbon monoxide, oxides of sulfur, carbon dioxide.
Hazardous Polymerization: Has not been reported.
Section 11 - TOXICOLOGICAL INFORMATION ? RTECS#:
CAS# 104-15-4: XT6300000 CAS# 6192-52-5: DB7164000 LD50/LC50:
CAS# 104-15-4: Oral, rat: LD50 = 2480 mg/kg.
CAS# 6192-52-5: Oral, mouse: LD50 = 1683 mg/kg; Oral, rat: LD50 = 2570 mg/kg.
Skin absorption LD50 guinea pig: no evidence at 1.0 g/kg.
irritation, guinea pig: Moderate.
pig: Moderate exacerbation.
sensitize any animals tested.
Company) Carcinogenicity:
p-Toluenesulfonic acid anhydrous - Not listed by ACGIH, IARC, or NTP.
p-Toluenesulfonic acid monohydrate - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION ? Ecotoxicity:
Fish: Fathead Minnow: > 100 mg/l; 96 hr; LC50
Section 13 - DISPOSAL CONSIDERATIONS ? Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION ?
IATA
Shipping Name: ARYLSULPHONIC ACIDS, SOLID
Hazard Class: 8
UN Number: 2585
Packing Group: III
IMO
Shipping Name: ARYLSULPHONIC ACIDS, SOLID
Hazard Class: 8
UN Number: 2585
Packing Group: III
RID/ADR
Shipping Name: ARYLSULPHONIC ACIDS, SOLID
Hazard Class: 8
UN Number: 2585
Packing group: III
Section 15 - REGULATORY INFORMATION ?
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37 Wear suitable gloves.
WGK (Water Danger/Protection)
CAS# 104-15-4: 1
CAS# 6192-52-5: 1
Canada
CAS# 104-15-4 is listed on Canada's DSL List.
CAS# 104-15-4 is not listed on Canada's Ingredient Disclosure List.
CAS# 6192-52-5 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 104-15-4 is listed on the TSCA inventory.
CAS# 6192-52-5 is not on the TSCA Inventory because it is a hydrate.
It is considered to be listed if the CAS number for the anhydrous form
is on the inventory (40CFR720.3(u)(2)).
SECTION 16 - ADDITIONAL INFORMATION N/A
626726216 
