Дихлорид диоктилтина

Description

Dioctyltine dichloride (dichlorodioctylstannane, dioctyldichlorothine) belongs to the class of halogenated organotin compounds - a tin derivative with two octyl chains and two chlorine atoms. Such dichlorides serve as key intermediates in the production of other organotin chemicals: through hydrolysis they are converted into the corresponding tin oxides, which in turn are used to produce stabilizers for halogenated synthetic resins, primarily PVC. Dioctyltine dichloride is also used as a catalyst or industrial intermediate in the production of polyurethanes, silicone resins, synthetic lubricants and MS polymer sealants. The use of the connection is limited by the EU REACH regulation.

Basic Attributes

• CAS No: 3542-36-7
• Chemical formula: C16H34Cl2Sn
• Molecular weight: 416.06
• Exact weight: 416.06
• EU number: 222-583-2
• UNII: TZ52I3CR3Q
• NSC Number: 102574
• DSSTox ID: DTXSID2029662
• HS code: 2931900090
• PSA: 0
• XLogP3: 7.6272

Physico-chemical characteristics

• Appearance: Other solid or liquid
• Density: 1.175 g/cm3
• Melting point: 46–48 °C
• Boiling point: 175 °C at 1 Torr pressure
• Flash point: 204 °C
• Solubility in water: insoluble

Scope of application

Chlorinated organotin intermediate: hydrolyzes to the corresponding tin oxide, used to produce stabilizers for PVC and other halogenated resins. Additionally used as a catalyst or industrial intermediate in the production of polyurethanes, silicone resins, synthetic lubricants and MS-polymer sealants.

Safety Information

• Packing level: II
• Hazard category: 6.1
• Transport codes: 3146
• Hazard class code: 36/37/38-48/20/22
• Safety instructions: 26-35-36/37/39
• RTECS number: WH7247000
• Precautions: P260, P261, P264, P270, P271, P273, P304+P340, P311, P314, P321, P403+P233, P405, P501
• Hazard statements: H331 (toxic if inhaled), H314 (causes severe skin burns and eye damage, 13.79% in GHS notifications), additionally mentioned H330 (fatal if inhaled)
• GHS classification provided by 29 companies from 6 notifications to the ECHA C&L register

Regulatory status

The use of dioctyltine dichloride is limited by the EU REACH regulation due to the toxicological profile of chlorinated organotin compounds.

Storage and transportation conditions

Store in a tightly closed container, in a dry, ventilated area, out of reach of unauthorized persons (P405), away from heat sources (P403+P233). Transport code 3146, hazard category 6.1, packing group II. When working, avoid inhalation of vapors and dust, use respiratory, skin and eye protection due to severe toxicity when inhaled and corrosive effects on skin and eyes.

Full aggregated list of P-phrases according to ECHA C&L data (29 companies, 6 notifications), including separate classification for H330 and H314: P201, P202, P260, P261, P264, P270, P271, P272, P273, P280, P281, P284, P301+P330+P331, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P307+P311, P308+P313, P310, P311, P314, P320, P321, P333+P313, P363, P403+P233, P405, P501.