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|Name:||4-Aminobenzoic acid 99% Material Safety Data Sheet|
|Synonym:||p-Aminobenzoic acid; PABA; 1-Amino-4-carboxybenzene|
Synonym:p-Aminobenzoic acid; PABA; 1-Amino-4-carboxybenzene
Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
Risk Phrases: 36/37/38
Section 3 - HAZARDS IDENTIFICATION
Irritating to eyes, respiratory system and skin.Air sensitive.
Potential Health Effects
Causes eye irritation. May cause chemical conjunctivitis.
Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
May be harmful if absorbed through the skin.
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause acute hepatitis. Overexposure may cause methemoglobinemia.
Causes respiratory tract irritation. May be harmful if inhaled.
Repeated exposure may cause sensitization dermatitis.
Section 4 - FIRST AID MEASURES
Eyes: Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.
Section 5 - FIRE FIGHTING MEASURES
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Dusts at sufficient concentrations can form explosive mixtures with air. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Use water spray, dry chemical, carbon dioxide, or appropriate foam.
Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Vacuum or sweep up material and place into a suitable disposal container. Clean up spills immediately, observing precautions in the Protective Equipment section. Avoid generating dusty conditions.
Section 7 - HANDLING and STORAGE
Wash thoroughly after handling. Wash hands before eating. Use with adequate ventilation. Minimize dust generation and accumulation.
Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation.
Do not store in direct sunlight. Keep container closed when not in use. Keep under a nitrogen blanket. Store in a cool, dry, well-ventilated area away from incompatible substances.
Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate general or local exhaust ventilation to keep airborne concentrations below the permissible exposure limits.
Exposure Limits CAS# 150-13-0: 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.
Wear appropriate protective gloves to prevent skin exposure.
Wear appropriate protective clothing to prevent skin exposure.
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.
Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Crystalline powder
Color: white - light yellow
Odor: Not available.
pH: 3.5 (0.5% aq. soln.)
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 186-189 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: Soluble in water.
Specific Gravity/Density: Not available.
Molecular Formula: C7H7NO2
Molecular Weight: 137.0545
Section 10 - STABILITY AND REACTIVITY
Stable under normal temperatures and pressures. May discolor on exposure to light. Air sensitive. Light sensitive.
Conditions to Avoid:
Light, dust generation, exposure to air.
Incompatibilities with Other Materials:
Strong oxidizing agents.
Hazardous Decomposition Products:
Carbon monoxide, oxides of nitrogen, carbon dioxide.
Hazardous Polymerization: Has not been reported
Section 11 - TOXICOLOGICAL INFORMATION
CAS# 150-13-0: DG1400000 LD50/LC50:
CAS# 150-13-0: Oral, mouse: LD50 = 2850 mg/kg; Oral, rabbit: LD50 = 1830 mg/kg; Oral, rat: LD50 = >6 gm/kg.
4-Aminobenzoic acid - Not listed by ACGIH, IARC, or NTP.
See actual entry in RTECS for complete information.
Section 12 - ECOLOGICAL INFORMATION
Bacteria: Phytobacterium phosphoreum: EC50 = 27.4 mg/L; 30 minutes; Microtox test; 15 degrees C
Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.
Section 14 - TRANSPORT INFORMATION
Shipping Name: Not regulated.
Shipping Name: Not regulated.
Shipping Name: Not regulated.
Section 15 - REGULATORY INFORMATION
European Labeling in Accordance with EC Directives
Hazard Symbols: XI
R 36/37/38 Irritating to eyes, respiratory system
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37/39 Wear suitable gloves and eye/face
WGK (Water Danger/Protection)
CAS# 150-13-0: 1
CAS# 150-13-0 is listed on Canada's DSL List.
CAS# 150-13-0 is listed on Canada's Ingredient Disclosure List.
CAS# 150-13-0 is listed on the TSCA inventory.
SECTION 16 - ADDITIONAL INFORMATION