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Common Name: Caprylic Acid
Chemical Name: Octanoic Acid
Chemical Formula: C8H16O2
Appearance: Clear to slightly yellowish oily liquid with a somewhat unpleasant odor
Odor Threshold: May be noticeable at low concentrations by its sharp, sour smell
Uses: Caprylic Acid shows up in food production, cleaning products, nutritional supplements, and even as a component in certain disinfectants
Main Hazards: Skin and eye irritation remain the biggest worries, and inhalation of vapors in poorly ventilated areas can cause discomfort
Acute Effects: Contact causes redness or burning in sensitive individuals; swallowing may lead to nausea or abdominal pain
Chronic Exposure: Long-term occupational exposure raises the chance of skin sensitization or dermatitis
Regulatory Class: Not classed as highly hazardous but calls for respect in handling
NFPA Ratings: Health 2, Flammability 2, Reactivity 0 (moderate hazard level for skin and fire risk, stable under normal conditions)
Main Ingredient: Caprylic Acid (typically above 98 percent purity)
Impurities: Minor traces of related fatty acids may be present, but significant contaminants are rare in food and lab grade material
CAS Number: 124-07-2
Eyes: Immediate rinsing with plenty of water for at least 15 minutes helps prevent lasting harm
Skin Contact: Washing with soap and water, removing contaminated clothing, and monitoring for irritation
Inhalation: Getting out to fresh air and keeping calm, since vapor can irritate the nose or throat
Ingestion: Rinse mouth, seek medical attention for large amounts swallowed
Note for Responders: Symptoms can show up quickly, but with proper response, recovery tends to be prompt
Flammability: Burns on contact with open flames; flash point usually sits just above normal room temperature
Suitable Extinguishers: Dry chemical, foam, or carbon dioxide work best; water sprays help cool the surrounding area
Fire Hazards: Gives off irritating fumes when burning; smoke may contain carbon monoxide and carbon dioxide
Protective Equipment: Firefighters need full gear including a self-contained breathing apparatus
Personal Protection: Gloves, goggles, proper ventilation; avoid breathing in mist or vapors
Containment: Absorb liquid with sand, earth, or inert material then scoop up for disposal
Clean Up: Wash area with plenty of water, making sure runoff doesn’t reach water bodies
Environmental Caution: Even small spills carry risk for aquatic life; treating run-off properly prevents lasting problems
Handling: Keep caps tight, minimize skin contact, use in well-aired spaces
Storage: Store in cool, dry, well-ventilated areas away from heat sources and incompatible substances
Container Safety: Use corrosion-resistant containers and check seals often
Incompatibles: Strong bases, oxidizers, and some reactive metals may cause trouble
Ventilation: Use local exhaust or general ventilation so vapors do not build up
Personal Protective Equipment: Chemical-resistant gloves, goggles, and, when handling large amounts, protective clothing
Respiratory Protection: Use a suitable mask if vapor levels rise in enclosed settings
Hygiene: Clean hands thoroughly after use and before eating; laundering work clothes helps cut down skin exposure
Appearance: Clear or slightly yellow oily liquid
Odor: Sharp, unpleasant, somewhat sour-smelling
Melting Point: Around 16–17°C
Boiling Point: 239–242°C
Flash Point: Close to 110°C (open cup)
Auto-Ignition Temp: Over 360°C
Solubility: Slightly soluble in water; mixes well with alcohols and organic solvents
Density: About 0.91 g/cm3 at 20°C
Chemical Stability: Stable under appropriate storage, but prolonged exposure to air or light increases the likelihood of breakdown
Hazardous Reactions: May react with strong oxidizers
Decomposition Products: Main byproducts are carbon oxides if burned
Polymerization: Does not polymerize
Routes of Exposure: Inhalation, skin, eyes, ingestion
Acute Toxicity: Oral LD50 in rats stands just below 5000 mg/kg, making it moderately toxic in very large doses
Irritation: Causes noticeable skin and eye irritation
Chronic Effects: Not classified as carcinogenic, but repeated or prolonged skin contact will likely cause redness, chapping, or dermatitis
Sensitization: Rare, but possible with frequent handling
Environmental Impact: Harmful to aquatic organisms at higher concentrations
Persistence: Breaks down fairly quickly in soil and water, yet high doses still threaten aquatic life
Bioaccumulation: Unlikely due to ready biodegradability
Mobility: Moderate mobility in soil; spills need containment
Waste Treatment: Do not pour down drains; incinerate or dispose of in accordance with local environmental rules
Container Disposal: Empty containers still contain residue; triple rinse and send to proper recycling or disposal
Larger Quantities: Work with certified waste contractors for collection and final destruction, keeping environmental release to a minimum
Ground and Sea: Ships as a non-hazardous liquid in most regions yet meets packing group III for mild danger under some DOT and IMDG standards
Labeling: Flammable liquid, keep away from foodstuffs
Precautions in Transit: Secure tightly, protect from physical damage, separate from incompatible cargo
Chemical Inventory: Caprylic Acid features in major chemical inventories worldwide, including TSCA, REACH, and AICS
Worker Safety: OSHA sets general requirements for safe handling and PPE
Hazard Statements: Markets in North America and Europe require hazard communication for skin and eye irritation
Environmental Rules: Discharge or release into waterways meets strict scrutiny under EPA and local environmental boards
Food Additive Use: Allowed in small amounts under codified limits in food processing
