



 
Hi Ed, The conversion factor depends on the density of the powdered material you are considering. On the SImetric site in the UK there is a a table of densities of dry materials that illustrates the range of possibilities. The units in their table are kilograms per cubic metre but if you divide their density by 1000 you obtain its value in grams per cubic centimeter. Since a cubic centimeter is a milliliter these are the numbers you want. So, for example, from their table
Harley Weston  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 