
precent w/w question
Was asked this question the other day, does one need density to do %w/w
example, simple formula
WATER 90% SODIUM PHYTATE 0.2% siligel 0.3% glycerin 9% ETHYLHEXYL OLIVATE 0.5% now if we’re making 100g
do you add 9 g of water which comes out to 8.5mls ( if you look at the amount you added to get 9g)
or do you add 7.143mls which is taken for Glycerol’s density of 1.26g/ml which calculates to that 7.143ml = 9g glycerol
Any takers?
Thanks