Molecular Structure:

Product description: Methyltin Mercaptide Heat Stabilizer DX-181 Brand No.: DX-181 CAS: 57583-35-4 Formula: C31H60O6S3Sn and C22H44O4S2Sn The mass ratio of methyltin mercaptide and dimethyltin mercaptide is around 25/75. Structural formula: Technical specifications Items Specifications Executive standards Appearance Clear liquid Color (Pt-Co) ≤ 50 GB/T1664 Density (25°C) g/cm3 1.18±0.01 GB/T13216.5-1991 Viscosity (25°C) mPa.S 60-90 GB/T12008.8-1992 Tin content (%) 19.0±0.5 Iodometry Product Properties: Heat Stability: DX-181 has high efficient heat stability and good early color stability. Transparency: The products processed with DX181 have superior transparency, clear color, little gas and no educt. Process: The excellent hightemperature color stability and longterm dynamic stability provided by DX-181. Without fouling, the time of cleaning equipment is shortened. It is suitable for all kinds of process of flexible and rigid PVC, such as calendaring, extrusion,injection and blow molding, etc. Amount: On the same condition, less methyltin mercaptide compared with butyltin or octyltin can achieve the same effect. Safety: The product of methyltin mercaptide has been approved by American FDA (21 CFR 178.2010) and certified by Germany BGA (IIA, 4C). It can be used in food packaging materials and water pipes etc. It’s safe and reliable. Applications PVC film (thermal shrinking packaging film, printing film, calendared film, twisting film) PVC sheet (clear flexible and rigid sheet, Christmas sheet, advertisement sheet, compound sheet) PVC granule (granule, shell of electronic communication apparatus, etc.) PVC building and construction materials (drinking water pipe and pipe fittings, chemical pipes, construction materials, profile etc.) PVC medical apparatus (transfusion device, etc.), food packaging materials, daily-used appliances and others User Notice Package: The product is packed into iron bucket with plastic coating or plastic bucket, and the net weight is 220kg per bucket. Transportation: The product is the heat stabilizer for processing PVC, and it is non-flammable and non-explosive. Storage: The iron bucket should be placed in cool and dry area with the storage temperature from 5 to 30°C. The bucket should be sealed immediately after use. Safety: Avoid any contact with mouth, eyes and skin. In case of contact with skin, wash thoroughly with soap and water immediately. In case of contact with eyes or mouth, flush with water immediatelyand get medical attention. The work place should be ventilated soas to avoid inhaling evaporated gas directly in the production operation. Environment: According to environment safety standards of Occupational Safety & Health Administration (OSHA), including the standard of tin use for all the industries. TWA (eight hours average value) is 0.1mg/m3 (tin); short-time exposure value is 0.2mg/m3 Warranty period: 12 months