p-Hydroxybenzoic Acid MSDS
Section 1: Chemical Product and Company Identification
Product Name: p-Hydroxybenzoic Acid
Catalog Codes: SLH2644
CAS#: 99-96-7
RTECS: DH1925000
TSCA: TSCA 8(b) inventory: p-Hydroxybenzoic Acid
CI#: Not available.
Synonym: 4-Carboxyphenol; Benzoic acid, 4-hydroxy;
4-Hydroxybenzoic acid; p-Salcylic acid
Chemical Name: p-Hydroxybenzoic acid
Chemical Formula: C7H6O3
Section 2: Composition and Information on Ingredients
Composition:
Name CAS # % by Weight
{p-}Hydroxybenzoic Acid 99-96-7 100
Toxicological Data on Ingredients: p-Hydroxybenzoic acid: ORAL (LD50): Acute: 2200 mg/kg [Mouse]. >10000 mg/kg
[Rat].
Section 3: Hazards Identification
Potential Acute Health Effects:
Hazardous in case of eye contact (irritant). Slightly hazardous in case of skin contact (irritant), of ingestion, of
inhalation.
Potential Chronic Health Effects:
CARCINOGENIC EFFECTS: Not available.
MUTAGENIC EFFECTS: Not available.
TERATOGENIC EFFECTS: Not available.
DEVELOPMENTAL TOXICITY: Not available.
The substance may be toxic to kidneys, liver.
Repeated or prolonged exposure to the substance can produce target organs damage.
Section 4: First Aid Measures
Eye Contact:
Check for and remove any contact lenses. In case of contact, immediately flush eyes with plenty of water for at
least 15 minutes. Cold water may be used. WARM water MUST be used. Get medical attention.
Skin Contact: Wash with soap and water. Cover the irritated skin with an emollient. Get medical attention if irritation develops.
Serious Skin Contact: Not available.
Inhalation:
If inhaled, remove to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get
medical attention.
Serious Inhalation: Not available.
Ingestion:
Do NOT induce vomiting unless directed to do so by medical personnel. Never give anything by mouth to an
unconscious person. Loosen tight clothing such as a collar, tie, belt or waistband. Get medical attention if
symptoms appear.
Serious Ingestion: Not available.
Section 5: Fire and Explosion Data
Flammability of the Product: May be combustible at high temperature.
Auto-Ignition Temperature: Not available.
Flash Points: Not available.
Flammable Limits: Not available.
Products of Combustion: These products are carbon oxides (CO, CO2).
Fire Hazards in Presence of Various Substances: Slightly flammable to flammable in presence of heat.
Explosion Hazards in Presence of Various Substances:
Risks of explosion of the product in presence of mechanical impact: Not available.
Risks of explosion of the product in presence of static discharge: Not available.
Fire Fighting Media and Instructions:
SMALL FIRE: Use DRY chemical powder.
LARGE FIRE: Use water spray, fog or foam. Do not use water jet.
Special Remarks on Fire Hazards: As with most organic solids, fire is possible at elevated temperatures
Special Remarks on Explosion Hazards: Not available.
Section 6: Accidental Release Measures
Small Spill:
Use appropriate tools to put the spilled solid in a convenient waste disposal container. Finish cleaning by
spreading water on the contaminated surface and dispose of according to local and regional authority
requirements.
Large Spill:
Use a shovel to put the material into a convenient waste disposal container. Finish cleaning by spreading water
on the contaminated surface and allow to evacuate through the sanitary system.
Section 7: Handling and Storage
Precautions:
Keep away from heat. Keep away from sources of ignition. Ground all equipment containing material. Do not
ingest. Do not breathe dust. Avoid contact with eyes. Wear suitable protective clothing. If ingested, seek
medical advice immediately and show the container or the label. Keep away from incompatibles such as oxidizing
agents.
Storage: Keep container tightly closed. Keep container in a cool, well-ventilated area.
Section 8: Exposure Controls/Personal Protection
Engineering Controls:
Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne levels below
recommended exposure limits. If user operations generate dust, fume or mist, use ventilation to keep exposure to
airborne contaminants below the exposure limit.
Personal Protection:
Splash goggles. Lab coat. Dust respirator. Be sure to use an approved/certified respirator or equivalent.
Gloves.
Personal Protection in Case of a Large Spill:
Splash goggles. Full suit. Dust respirator. Boots. Gloves. A self contained breathing apparatus should be used
to avoid inhalation of the product. Suggested protective clothing might not be sufficient; consult a specialist
BEFORE handling this product.
Exposure Limits: Not available.
Section 9: Physical and Chemical Properties
Physical state and appearance: Solid.
Odor: Not available.
Taste: Not available.
Molecular Weight: 138.12 g/mole
Color: White. Off-white.
pH (1% soln/water): Not available.
Boiling Point: Not available.
Melting Point: 213°C (415.4°F) - 216 C
Critical Temperature: Not available.
Specific Gravity: 1.46 (Water = 1)
Vapor Pressure: Not applicable.
Vapor Density: Not available.
Volatility: Not available.
Odor Threshold: Not available.
Water/Oil Dist. Coeff.: Not available.
Ionicity (in Water): Not available.
Dispersion Properties: See solubility in water, diethyl ether, acetone.
Solubility:
Soluble in diethyl ether, acetone.
Very slightly soluble in cold water.
Soluble in about 125 parts water.
Freely soluble in alcohol.
Slightly soluble in chloroform.
Practically insoluble in carbon disulfide.
Section 10: Stability and Reactivity Data
Stability: The product is stable.
Instability Temperature: Not available.
Conditions of Instability: Excess heat, incompatible materials
Incompatibility with various substances: Reactive with oxidizing agents.
Corrosivity: Non-corrosive in presence of glass.
Special Remarks on Reactivity: Not available.
Special Remarks on Corrosivity: Not available.
Polymerization: Will not occur.
Section 11: Toxicological Information
Routes of Entry: Inhalation. Ingestion.
Toxicity to Animals: Acute oral toxicity (LD50): 2200 mg/kg [Mouse].
Chronic Effects on Humans: May cause damage to the following organs: kidneys, liver.
Other Toxic Effects on Humans: Slightly hazardous in case of skin contact (irritant), of ingestion, of inhalation.
Special Remarks on Toxicity to Animals: Not available.
Special Remarks on Chronic Effects on Humans: Not available.
Special Remarks on other Toxic Effects on Humans:
Acute Potential Health Effects:
Skin: May cause skin irritation.
Eyes: Causes eye irritation and possible eye injury.
Inhalation: Causes respiratory tract irritation.
Ingestion: May cause digestive tract/gastrointestinal tract irritation with nausea, stomach pain, sweating.
Ingestion of large amounts may also affect behavior/central nervous system/peripheral nervous system (muscle
weakness, somnolence, ataxia, convulsions, flaccid paralysis (usually with neuromuscular blockage, and possibly
coma, cardiovascular collapse, and death), respiration (dyspnea, rapid breathing).
Chronic Potential Health Effects:
Ingestion: Prolonged or repeated ingestion may affect the liver, kidneys, and cause weight loss.
Section 12: Ecological Information
Ecotoxicity: Not available.
BOD5 and COD: Not available.
Products of Biodegradation:
Possibly hazardous short term degradation products are not likely. However, long term degradation products may
arise.
Toxicity of the Products of Biodegradation: The product itself and its products of degradation are not toxic.
Special Remarks on the Products of Biodegradation: Not available.
Section 13: Disposal Considerations
Waste Disposal:
Waste must be disposed of in accordance with federal, state and local environmental
control regulations.
Section 14: Transport Information
DOT Classification: Not a DOT controlled material (United States).
Identification: Not applicable.
Special Provisions for Transport: Not applicable.
Section 15: Other Regulatory Information
Federal and State Regulations: TSCA 8(b) inventory: p-Hydroxybenzoic acid
Other Regulations:
OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR 1910.1200).
EINECS: This product is on the European Inventory of Existing Commercial Chemical Substances.
Other Classifications:
WHMIS (Canada): CLASS D-2B: Material causing other toxic effects (TOXIC).
DSCL (EEC):
R36/37/38- Irritating to eyes,
respiratory system and skin.
S36/37/39- Wear suitable protective clothing,
gloves and eye/face protection.
HMIS (U.S.A.):
Health Hazard: 1
Fire Hazard: 1
Reactivity: 0
Personal Protection: E
National Fire Protection Association (U.S.A.):
Health: 1
Flammability: 1
Reactivity: 0
Specific hazard:
Protective Equipment:
Gloves.
Lab coat.
Dust respirator. Be sure to use an
approved/certified respirator or
equivalent.
Splash goggles.
Section 16: Other Information
References: Not available.
Other Special Considerations: Not available.
Created: 10/09/2005 05:46 PM
Last Updated: 11/06/2008 12:00 PM