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Product Name: Butyric Acid
Synonyms: Butanoic acid, Butanoate
Chemical Formula: C4H8O2
Molecular Weight: 88.11 g/mol
CAS Number: 107-92-6
Recommended Use: Intermediate in organic synthesis, food additive, laboratory reagent
Supplier Identification: Information available from manufacturer or distributor label
Emergency Telephone Number: Refer to local emergency contact on label or SDS sheet
Classification: Flammable liquid, Skin Corrosive, Serious Eye Damage, Acute Toxicity
GHS Label Elements: Danger symbol, Corrosive symbol
Hazard Statements: Causes severe skin burns and eye damage. Harmful if swallowed, causes respiratory tract irritation, suspected of causing genetic defects, flammable liquid and vapor.
Precautionary Statements: Keep away from heat and ignition sources. Wear protective gloves and eye/face protection. Wash exposed skin thoroughly after handling.
Chemical Name: Butyric Acid
Concentration: ≥ 99%
CAS Number: 107-92-6
Impurities and Stabilizing Additives: Trace impurities may include water, related organic acids (<1%), stabilizers as listed by supplier
Inhalation: Move person to fresh air right away. Provide oxygen or artificial respiration if needed. Get medical attention for breathing issues.
Skin Contact: Remove contaminated clothing. Rinse affected area thoroughly with water. Seek medical help for burns, redness, or pain.
Eye Contact: Flush eyes immediately with plenty of water for at least 15 minutes. Remove contact lenses if present. Get prompt medical attention.
Ingestion: Do not induce vomiting. Rinse mouth with water. Seek medical attention for stomach pain, nausea, or vomiting. If unconscious, do not give anything by mouth.
Suitable Extinguishing Media: Use alcohol-resistant foam, dry chemical, or carbon dioxide. Water spray can be used to cool containers.
Specific Hazards: Fire may release toxic fumes, including carbon oxides. Vapors are heavier than air and spread along floor, ignite easily.
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear.
Special Firefighting Instructions: Contain run-off water to prevent entry into drains or water sources. Stay upwind of fire, avoid breathing vapors.
Personal Precautions: Evacuate area, ventilate space. Wear chemical-resistant gloves, protective goggles, and respirator if needed.
Environmental Precautions: Prevent entry into waterways or soil. Notify local authorities in case of significant spill.
Containment and Cleanup: Neutralize with sodium bicarbonate if possible. Soak up with inert material such as sand or vermiculite. Collect in suitable, labeled containers for proper disposal. Wash spill site after pick-up is complete.
Handling: Avoid breathing vapors. Use only in well-ventilated areas. Avoid contact with skin, eyes, and clothing. Wash hands after handling.
Storage: Store in tightly closed containers, in cool, dry, ventilated area, away from heat, sparks or flame. Keep away from incompatible materials such as strong oxidizers, reducing agents, alkalis. Containers should be clearly labeled, protected from damage, and checked regularly for leaks.
Exposure Limits: ACGIH TLV: 2 ppm (ceiling); OSHA PEL: Not established.
Engineering Controls: Use local exhaust ventilation to keep exposure below limits. Install eyewash stations and safety showers near areas of use.
Personal Protective Equipment: Wear chemical splash goggles, impervious gloves, lab coat or apron. Use NIOSH-approved respiratory protection if exposure exceeds recommended limits.
Hygiene Measures: No smoking, eating, or drinking during use. Wash thoroughly after handling, change contaminated clothing promptly.
Appearance: Colorless to slightly yellow liquid
Odor: Strong, unpleasant, rancid, butter-like odor
Boiling Point: 163.5°C (326.3°F)
Melting Point: -7.9°C (17.8°F)
Flash Point: 72°C (161°F) (closed cup)
Autoignition Temperature: 440°C (824°F)
Vapor Pressure: 1 mm Hg at 20°C
Solubility: Soluble in water, miscible with ethanol and ether
Density: 0.958 g/cm³ at 20°C
pH: 3.6 (1% solution)
Chemical Stability: Stable under normal conditions, may polymerize or decompose at high temperatures.
Conditions to Avoid: Heat, flames, sparks, static discharge, strong oxidizing agents, alkalis.
Incompatible Materials: Strong bases, oxidizers, metals such as iron, materials sensitive to acids.
Hazardous Decomposition Products: May release toxic gases such as carbon monoxide and carbon dioxide during fire or high temperature breakdown.
Possibility of Hazardous Reactions: Reacts violently with oxidizers, may form explosive mixtures with air.
Acute Toxicity: Oral LD50 (rat): 2940 mg/kg; Inhalation LC50 (rat): Not available
Skin Corrosion/Irritation: Causes burns, redness, pain, blistering upon contact
Serious Eye Damage/Irritation: Causes severe irritation, possible eye burns, permanent vision impairment
Respiratory or Skin Sensitization: Prolonged exposure can cause respiratory tract irritation and allergic reactions in some individuals
Chronic Effects: Prolonged or repeated exposure can damage skin, eyes, or respiratory system. No evidence of carcinogenic effects in humans.
Potential Routes of Exposure: Skin and eye contact, inhalation, ingestion
Symptoms: Burning sensation, cough, shortness of breath, headache, nausea, vomiting, abdominal pain, eye and skin pain
Ecotoxicity: Harmful to aquatic life at high concentrations, can decrease pH and disrupt aquatic organisms
Persistence and Degradability: Biodegradable under aerobic conditions, rapid breakdown in environment
Bioaccumulative Potential: Low
Mobility in Soil: High, may leach into groundwater
Other Adverse Effects: May cause long-term adverse effects in aquatic environment with large releases, not considered environmentally persistent
Waste Treatment Methods: Dispose according to local, state, and federal regulations.
Product Disposal: Small amounts can be neutralized and flushed with plenty of water. Larger quantities must be handled by a licensed waste disposal contractor.
Contaminated Packaging: Rinse containers thoroughly before recycling or disposal. Containers must be triple rinsed and rendered unserviceable.
Environmental Precautions: Prevent contamination of water, soil, and drains. Notify authorities if significant release occurs.
UN Number: UN2820
Proper Shipping Name: Butyric Acid
Transport Hazard Class: 8 (Corrosive substances)
Packing Group: III
Labels Required: Corrosive
Special Precautions for User: Keep containers upright and tightly sealed. Protect from physical damage, separate from incompatible materials. Transport vehicles must carry emergency response information about substance hazards.
OSHA Hazard Classification: Corrosive, flammable, hazardous chemical
SARA Title III: Section 302: Not listed; Section 313: Not listed
TSCA Inventory: Listed
EPA Regulations: Not regulated as hazardous waste under RCRA, but local regulations may apply
WHMIS Classification (Canada): Class E, D2B
EU Regulations: Classified as hazardous according to EC directives. Risk phrases: R34, R20/22. Safety phrases: S26, S36/37/39, S45.
Other National Inventories: Listed in Australia (AICS), Japan (ENCS), Korea (ECL), and Philippines (PICCS)
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
