Nonanoic acid

Nonanoic acid is a saturated carboxylic acid with the molecular formula C9H18O2 and CAS number 112-05-0. Also known as pelargonic acid, it consists of a nine-carbon chain with a carboxyl functional group. With a molecular weight of 158.24 g/mol, this organic compound appears as a colorless to pale yellow liquid with a characteristic fatty acid odor. It belongs to the family of medium-chain fatty acids and exhibits typical carboxylic acid properties including moderate acidity and the ability to form salts and esters.

Nonanoic acid is a colorless to pale yellow liquid at room temperature with a characteristic unpleasant, rancid odor typical of fatty acids. It has a molecular weight of 158.24 g/mol and exhibits limited water solubility due to its hydrophobic carbon chain, though it's more soluble in organic solvents like alcohols and ethers. The compound has a melting point around 12°C and a boiling point of approximately 254°C. It demonstrates typical carboxylic acid reactivity and can undergo esterification, neutralization, and other standard organic reactions.

Nonanoic acid serves primarily as a herbicide and plant growth regulator in agricultural applications, effectively controlling weeds through contact action. It's widely used in organic farming as a natural alternative to synthetic herbicides. Additionally, it functions as an intermediate in chemical synthesis for producing esters, salts, and other derivatives used in cosmetics, lubricants, and plasticizers. The compound also finds applications in the manufacturing of surfactants, corrosion inhibitors, and as a component in some industrial cleaning formulations due to its antimicrobial properties.

Nonanoic acid requires careful handling as it can cause skin and eye irritation (Skin Irrit. 2, Eye Irrit. 2). Always wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing when handling this substance. Ensure adequate ventilation to avoid inhalation of vapors. The GHS07 pictogram indicates health hazards, and the warning signal word emphasizes the need for caution. Avoid direct contact with skin and eyes, and wash hands thoroughly after handling. Work in well-ventilated areas and have emergency eyewash stations readily accessible.

Nonanoic acid should be stored in a cool, dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly closed and upright to prevent leakage and contamination. Store away from incompatible materials such as strong bases, oxidizing agents, and reactive metals that could react with the carboxylic acid. The storage area should be equipped with appropriate spill containment measures and maintained at stable temperatures to prevent degradation. Ensure storage containers are made of compatible materials and properly labeled according to CLP regulations.

Nonanoic acid exposure requires immediate first aid measures due to its irritating properties. For skin contact, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for at least 15 minutes while holding eyelids open. If inhaled, move the person to fresh air immediately. For ingestion, rinse mouth with water but do not induce vomiting. Seek medical attention if irritation persists or if large amounts were involved in the exposure.

Nonanoic acid disposal must comply with local, national, and European waste regulations as it's classified as hazardous waste. The substance cannot be disposed of in regular drains or municipal waste due to its aquatic chronic toxicity (Aquatic Chronic 3). Contact licensed hazardous waste disposal companies for proper treatment and disposal. Small quantities may be neutralized with appropriate bases under controlled conditions by qualified personnel, but this should only be done following proper procedures. Always consult local environmental authorities for specific disposal requirements and maintain proper waste documentation.

Nonanoic acid is classified as ADR Class 8 (corrosive substances), Packing Group III, requiring specific transport protocols for dangerous goods. Packages must be properly labeled with the appropriate hazard labels and UN identification numbers. Use approved packaging materials resistant to corrosive substances and ensure containers are securely closed and properly cushioned. Transport vehicles must carry appropriate emergency equipment and documentation. Drivers need ADR certification for transporting dangerous goods. Follow proper loading, segregation, and routing requirements as specified in ADR regulations for Class 8 substances.

Nonanoic acid is subject to European REACH regulation requiring registration for commercial use and CLP regulation for classification and labeling as indicated by its hazard classes (Skin Irrit. 2, Eye Irrit. 2, Aquatic Chronic 3). It's not classified as a Substance of Very High Concern (SVHC). The compound must be transported according to ADR regulations as Class 8, Group III dangerous goods. Biocidal applications may require additional authorization under the Biocidal Products Regulation (BPR). Users must comply with occupational safety regulations and environmental protection requirements, particularly regarding aquatic environments due to its chronic toxicity classification.

Nonanoic acid is available through OYSI, a trusted European distributor of chemical products specializing in industrial and professional applications. OYSI provides reliable supply chains across Europe with proper documentation including safety data sheets, certificates of analysis, and regulatory compliance information. As an established chemical distributor, OYSI ensures product quality and adherence to European regulations including REACH and CLP requirements. Contact OYSI directly for pricing, availability, packaging options, and delivery schedules to meet your specific nonanoic acid requirements while ensuring full regulatory compliance for your applications.