Antimony

Antimony is a metalloid chemical element with the symbol Sb and atomic number 51. It appears as a lustrous gray metal in its crystalline form and has been known since ancient times. With a molecular weight of 121.76 g/mol, antimony exhibits both metallic and non-metallic properties. It is naturally occurring and can be found in various minerals, most commonly in stibnite (antimony sulfide). The element is brittle and has poor conductivity compared to true metals.

Antimony is a silvery-white, lustrous metalloid that is brittle and crystalline at room temperature. It has a melting point of 630.63°C and a boiling point of 1,587°C. The element is insoluble in water but soluble in hot concentrated sulfuric acid. It has a density of 6.68 g/cm³ and exhibits poor thermal and electrical conductivity. Antimony is stable in air at room temperature but oxidizes when heated, forming antimony trioxide.

Antimony is primarily used as a flame retardant in plastics, textiles, and rubber products when combined with halogenated compounds. It serves as a hardening agent in lead alloys for batteries, bullets, and cable sheathing. The semiconductor industry uses high-purity antimony in the production of infrared detectors and diodes. Additionally, antimony compounds are utilized in glass manufacturing to remove bubbles and in certain pharmaceutical applications. It also finds use in pigments and ceramic applications.

Antimony should be handled with appropriate personal protective equipment including safety goggles, dust masks, and protective gloves to prevent inhalation and skin contact. Work in well-ventilated areas or use local exhaust ventilation to minimize dust exposure. Avoid creating dust clouds during handling and use proper industrial hygiene practices. Wash hands thoroughly after handling and avoid eating, drinking, or smoking in work areas. Regular health monitoring may be advisable for workers with frequent exposure to antimony compounds.

Antimony should be stored in a cool, dry, well-ventilated area away from incompatible materials such as strong oxidizers, acids, and halogenated compounds. Keep containers tightly sealed and protected from moisture to prevent degradation. Store away from heat sources and ignition sources. Use appropriate containment measures to prevent environmental release. Ensure storage areas comply with local fire codes and maintain proper inventory management. Separate from food, feed, and other consumer products.

Antimony exposure requires immediate action depending on the route of contact. For skin contact, remove contaminated clothing and wash the affected area thoroughly with soap and water. In case of eye contact, flush immediately with clean water for at least 15 minutes and seek medical attention. If inhaled, move the person to fresh air and monitor breathing. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician if symptoms develop or persist after exposure.

Antimony waste must be disposed of according to local, national, and international environmental regulations. It should not be released into the environment, sewage systems, or regular waste streams. Contact licensed waste disposal companies that specialize in metallic waste management. Antimony-containing materials may require special treatment or recycling processes. Maintain proper documentation of waste disposal activities. Consider recovery and recycling options where economically and technically feasible to minimize environmental impact.

Antimony is classified under ADR as Class 6.1 (Toxic substances), Packing Group III, indicating it requires specific transport precautions. It must be properly packaged in approved containers with appropriate labeling and documentation. Transport vehicles should carry proper safety equipment and emergency response information. Drivers must be trained in hazardous materials transport regulations. Ensure compliance with international transport regulations (ADR/RID for road/rail, IMDG for sea, IATA for air transport). Proper shipping papers and emergency contact information are mandatory.

Antimony is subject to various regulatory frameworks including REACH registration requirements in Europe for quantities above specified thresholds. While not currently listed as a Substance of Very High Concern (SVHC), it must comply with CLP classification and labeling regulations. Industrial users must conduct risk assessments and implement appropriate risk management measures. Some antimony compounds may have specific restrictions or require authorization. Regular monitoring of regulatory updates is essential as classifications can change based on new scientific evidence.

Antimony is available through OYSI, a trusted European distributor of technical chemicals serving industrial customers across Europe. OYSI provides high-quality antimony with proper documentation, safety data sheets, and regulatory compliance support. As a specialized chemical distributor, OYSI ensures reliable supply chains and technical expertise for industrial applications. Contact OYSI directly for specific grades, quantities, and delivery options tailored to your requirements. Professional customer service and technical support are available to assist with product selection and applications.