What are the differences between Crude Glycerin, Technical Grade Glycerin, and 99.7 – USP Grade Glycerin?
With the domestic crude glycerin market reaching its saturation point and the prices of crude glycerin currently at an all time low, glycerin purification will no longer be an option for biodiesel plants but rather more of a business necessity. Further purification and refinement of crude glycerin, increases it’s market value thus making it more appealing to potential buyers. Unlike many of our competitor’s biodiesel process equipment, glycerin refining system will produce technical grade glycerin (>97% purity) as opposed to the average in the biodiesel industry which ranges between an 80 and 90% purity range. Properties Crude Glycerin Technical Grade Glycerin 99.7 -USP Grade Glycerin Glycerol Content 40 – 88% 98.0 Min 99.70% Ash 2.0% Max N/A N/A Moisture Content N/A 2.0% Max 0.3% Max Chlorides N/A 10 ppm Max 10 ppm Max Color N/A 40 Max (Pt – Co) 10 Max. (APHA) Specific Gravity N/A 1.262 (@25C) 1.2612 Min Sulfate N/A N/A 20 ppm Max Assay N/A N/A 99.0 – 101.0% (on dry basis) Heavy Metals N/A…
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