Dibutyl(dichloro)stannane

Dibutyl(dichloro)stannane is an organotin compound with the molecular formula C8H18Cl2Sn and CAS number 683-18-1. This chemical substance has a molecular weight of 303.84 g/mol and belongs to the family of dialkyltin dichlorides. It is classified as a highly hazardous material with multiple danger classifications including mutagenic, reproductive toxic, and acutely toxic properties. The compound requires careful handling due to its significant health and environmental risks.

Dibutyl(dichloro)stannane is typically a colorless to pale yellow liquid at room temperature with a characteristic organotin odor. The compound has a molecular weight of 303.84 g/mol and contains tin as its central metal atom bonded to two butyl groups and two chlorine atoms. It is generally insoluble in water but soluble in organic solvents. The substance is sensitive to moisture and can hydrolyze in the presence of water, forming corrosive byproducts.

Dibutyl(dichloro)stannane is primarily used as an intermediate in the synthesis of other organotin compounds and as a catalyst in various chemical reactions. It serves as a precursor for producing dibutyltin-based stabilizers used in PVC processing and other polymer applications. The compound is also utilized in specialized chemical synthesis processes within the pharmaceutical and fine chemical industries, where its unique reactivity properties are valuable for specific transformations.

Dibutyl(dichloro)stannane requires extensive personal protective equipment including chemical-resistant gloves, safety goggles, and respiratory protection due to its acute toxicity. Work must be conducted in well-ventilated areas or under fume hoods to prevent inhalation exposure. Given its skin corrosive properties (Skin Corr. 1B), avoid all direct contact with skin and eyes. Handle containers carefully to prevent spills and ensure proper grounding to prevent static electricity buildup during transfer operations.

Dibutyl(dichloro)stannane should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and incompatible materials. Keep containers away from moisture as the compound can hydrolyze and form corrosive products. Store separately from oxidizing agents, strong bases, and food products. Ensure storage areas have appropriate spill containment measures and emergency equipment. Regular inspection of containers for signs of corrosion or leakage is essential for safe storage.

Dibutyl(dichloro)stannane contact requires immediate emergency response due to its corrosive and toxic nature. For skin contact, immediately remove contaminated clothing and flush affected area with copious amounts of water for at least 15 minutes. In case of eye contact, rinse immediately with water for at least 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult a physician after any exposure.

Dibutyl(dichloro)stannane disposal must comply with local and national hazardous waste regulations due to its toxic and environmental hazard classification. The substance cannot be disposed of in regular waste streams and requires treatment by licensed hazardous waste disposal facilities. Containers should not be emptied or cleaned without proper authorization. Incineration at high temperatures in specialized facilities is typically the preferred disposal method. Always consult local environmental authorities for specific disposal requirements and approved facilities.

Dibutyl(dichloro)stannane is classified under ADR Class 6.1 (toxic substances), Packing Group II, indicating high toxicity during transport. Specialized packaging meeting UN specification requirements is mandatory, and vehicles must display appropriate hazard placards and carry emergency response documentation. Drivers require ADR certification for toxic substance transport. Shipping documentation must include proper shipping names, hazard classes, and emergency contact information. Transport should avoid extreme temperatures and ensure secure packaging to prevent leaks.

Dibutyl(dichloro)stannane is subject to extensive European chemical regulations under REACH and CLP due to its hazardous properties including mutagenicity (Muta. 2) and reproductive toxicity (Repr. 1B). The substance requires safety data sheets and hazard labeling with GHS pictograms GHS08, GHS06, GHS05, and GHS09. While not currently listed as an SVHC, its toxic properties mean it may face restrictions or authorization requirements. Users must comply with occupational exposure limits and environmental discharge restrictions under various national legislations.

Dibutyl(dichloro)stannane is available through OYSI, a specialized European distributor of technical chemicals and hazardous substances. As an established chemical distributor, OYSI can provide proper documentation, safety data sheets, and regulatory compliance support required for this highly regulated substance. Due to the compound's classification as toxic and hazardous, purchases typically require verification of legitimate industrial use and appropriate handling capabilities. Contact OYSI directly for availability, specifications, and regulatory guidance.