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WACKER <br /> Safety Data Sheet <br /> Material : 60004600 HDK® N20 <br /> HYDROPHILIC PYROGENIC SILICA <br /> Version : 2 . 1 (US) Date of print: 06/25/2015 Date of last alteration : 06/24/2015 <br /> 9 . Physical and chemical properties <br /> 9. 1 Appearance <br /> Physical state / form . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : solid - powder <br /> Colour , . 11 , too * I woo 6044 004 & % am 1 0080 goes * * go * * 00 , 4 I ' M , % , : white <br /> Odour . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mae wood . . . . . . . . . . . too woo . . . . . . . . . . . . . : odourless <br /> 9.2 Safety parameters <br /> Property : Value : Method : <br /> Melting point / melting range . . " , 64 * to 00 * , V , 4 . . . . w . . . . . . % ago * * : 1700 °C (31092 ° F) <br /> Boiling point / boiling range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : not applicable <br /> Flash point" , , 10404 * 1 I ' ll I ' M . . . . . . . * too * We ' ll & spew bit # 6 * 640 0 , 1 : not applicable <br /> Ignition temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . not applicable <br /> Lower explosion limit (LEL) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : not applicable <br /> Vapour pressure . . " , " , ' , , " , * go a * . . . . . . a . . . . 604 * * * age woo : not applicable <br /> Density . . Ili . . . . . . West bad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : approx. 2. 2 g/cm' at 20 °C (68 ° F) (DIN 51757) <br /> Bulk density . . I I I & * 0 4 0 0 0 1 1 1 , , a a . . . . . . . t 0 0 4 W 1 0 1 1 1 1 1 1 1 1 1 1 1 1 p a 0 a a a p a 1 0 o 0 4 0 00 : 20 - 130 kg/m' <br /> Water solubility / miscibility, . . , . * 06014 " I ' m & goad * & p a a p p a p d , 0 , 1 0 0 0 : virtually insoluble at 20 °C (68 ° F) <br /> pH-Value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : 3. 6 - 4 . 5 (DIN EN ISO 787- <br /> 9) <br /> Viscosity (dynamic) . . . . . . . . . . . . . . . . . . . a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : not applicable <br /> 9. 3 Further information <br /> I VOC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : This material does not contain any reportable VOCs . 0 (calculated value) <br /> g/I <br /> 10 . Stability and reactivity <br /> 10.1 General information : <br /> If stored and handled in accordance with standard industrial practices no hazardous reactions are known . <br /> 10.2 Conditions to avoid <br /> 10.3 Materials to avoid <br /> none known <br /> 10 .4 Hazardous decomposition products <br /> If stored and handled properly: none known . <br /> 10 .5 Further information : <br /> Hazardous polymerization cannot occur. <br /> 11 . Toxicological information <br /> 11 . 1 Information on toxicological effects <br /> 11 .1 . 1 Acute toxicity <br /> Assessment: <br /> Based on the available data acute toxic effects are not expected after single oral exposure . Based on the available data acute <br /> toxic effects are not expected after single dermal exposure. Based on the available data acute toxic effects are not expected after <br /> short-term inhalative exposure . <br /> Product details : <br /> Route of exposure Result/EffectSpecies/Test system Source <br /> oral LD50: > 5000 mg/kg rat literature <br /> dermal LD50 : > 5000 mg/kg rabbit literature <br /> Page: 4/8 <br />