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ঘনত্ব Typical values: (g/cc) aerographene 0.00016 Aerogel = 0.001  Aerosol = 0.0019 air=0.0012 Water = 1;  dry ice+ 1.4-1.6 Al=2.7;  Cu=8.9;  Pb=11.3;  Hg=13.6;  W=19.3;  Au=19.3;  Os=22.6