Glycerol, also known as glycerin, is widely used as raw material, in intermediate formulations and also in final products, in many industries such as pharmaceutical, cosmetics and personal care, food and chemical production. Its density, specific gravity (SG),and/or concentration are monitored to verify its purity during production, for identifying incoming products,or to determine its concentration in final or intermediate products for quality control purposes.
The density of glycerol solutions at various concentrations was calculated from their specific gravity data by Bosart and Snoddy.Density measument guide will help to improve density measurement with digital density meter.
For lower range (0 - 40%):
Glycerin % w/w (from d20)
Conc. = -284.682x2 + 992.301x - 706.868
Max. deviation of fit: +/- 0.04 % w/w.
The application gives the method for calculating percentage w/w at d20 for various concentration ranges.