Silicone

Silicone Octamthyl cyclotetrasiloxane Name of Commodity : Octamthyl cyclotetrasiloxane CAS NO : 556-67-2 Molecular Formula : (CH3)8Si4O4 Molecular Weight : 296.6 Description of Danger : UN NO.1993, Package category No.3 Porduct Standard : Enterprise Standard Q/LXAX 12-2006 Octamethyl cyclotetrasiloxane National Standard GB/T 20435-2006 Octamethyl cyclotetrasiloxane Performance and Technical Indexes : Apperance and Properties :colorless transparent oily liquid PH Value : 7 Melting Point(°C):17.5 Relative Density(Water’s = 1): 0.96 Boiling Point (°C):175[101.3kPa] Relative Density(Air’s = 1) : without data Pressure of Saturated Vapor(kPa) : 0.1[20°C] Octanol/water distribution coefficient : 5.1 Flashing Point(°C): 56 Ignition Temperature(°C): 400 Upper Limit of Explosion[%V/V]:11.7 Lower Limit of Explosion[%V/V]:0.4 Dissolubility: undisolvable in water,dissolvable in organic solvent sucn as benenze etc. Application : It will produce organosilicon high polymer from ring-opening reaction under catalyzing of acid or alkali, which is a basic material of silicon oil and silicon rubber and is also can be directly used in rubber filer treatment or a raw material for cosmetics. HazardCharacteristics : The admixture of vapor and air is explosive ; Explosive admixture is formed by minute dispersed particulate matter in the Air’s. Electrostatic foece accumulates and may ignite inhalator. Hidden fire danger can be avoided by earth, parallel connection or inertia gas protection Stability : Stable Polymerized Danger : Polymerization Condition to Avoid being Contacted : without data Banned Articles : Oxidant Decomposition Products: silicon dioxide, carbon dioxide and minimum uncompleted combustion carbide, formaldehyde Package, Storage and Transpotation : It should be packed in 200L iron bucket(net weight 180kg/bucket)and be stored in a shady, cool and ventilated Storehouse..It should be kept away from kindling and heat sources.Temperature in the storehouse above 30°C is not suitable.Air proof package is required. And it should be put and store separately from oxidant and alkali.Corresponding varied and quantitative fire fighting equioment should be equipped. Mechanical equipment and tools which are easy to produce sparks are prohitbited to be used . Avoid electrostatic force being accumlated . When conveying ,take care of loading and unloading to avoid damages on package and vessels. Quality guarantee period of this product is 6 month.Recheck by this standard ie required when the product exceeds the time limit. The product can still be used only after the result of recheck is up to this standard.