Glycerine Refined USP Grade is a non-toxic, colorless and sweet tasting compound which is made from multiple hydroxyl groups. It is found in glycerides which is a biomolecule with a good solubility in non-polar solvents. It has a high boiling point of 289.9 degree Celsius at 760 mm of Hg and a melting point of 18 degree Celsius. Glycerine Refined USP Grade is widely used in industries with other intermediate substances to manufacture quality products. Some of the industries where this compound is popularly used are cosmetic, rubber, lubricant, textile, pharmaceutical, chemical, agriculture, food and beverages, paint, paper and printing.
| Method | Specified Range | Typical values |
Relative density 20 /20°C2 | ISO 2099 (Part 2) : 1972 | 1.2623 min | 1.2632 |
Refractive index n20D2 | APAG-GL-006 : 1988 | 1.4731 min | 1.4737 |
Glycerine content %1 | APAG-GL-009 : 1988 | 99.5 min | 99.8 |
Colour APHA1 | ASTM D1209 : 1993 | 10 max | 2.5 |
Fatty acids & esters 1 (ml 0.5N NaOH/50g) | USP XXllI : 1995 | 1.0 max | 0.14 |
Sulphated ash %2 | USP XXllI : 1995 | 0.01 max | 0.004 |
Chlorides ppm Cl2 | USP XXllI : 1995 | 10 max | < 10 |
Heavy metals ppm Pb2 | USP XXlIl (Mtd 1) : 1995 | 5 max | < 5 |
Chlorinated compounds ppm Cl2 | USP XXllI : 1995 | 30 max | < 30 |
Arsenic ppm2 | USP XXllI : 1995 | 1.5 max | < 1.5 |
Sulphate ppm2 | USP XXllI : 1995 | 20 max | < 20 |
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