Basic Info.
Model NO.
121-79-9
Type
PG
Resource
Natural
Sample
Available
MOQ
25kg
Self-Life
3 Years
Storage
Cool Dry Place
Transport Package
Drum
Specification
White crystalline powder
Trademark
Labeyond
Origin
China
HS Code
2918290000
Production Capacity
1000mt/Month
Product Description
Propyl gallate is an antioxidant. It protects against oxidation by hydrogen peroxide and oxygen free radicals. Propyl gallate is used to protect oils and fats in products from oxidation; it is used in foods, cosmetics, hair products, adhesives, and lubricants. It is used as a triplet state quencher and an antioxidant in fluorescence microscopy. Propyl gallate, or propyl 3,4,5-trihydroxybenzoate is an ester formed by the condensation of gallic acid and propanol. Since 1948, this antioxidant has been added to foods containing oils and fats to prevent oxidation. As a food additive, it is used under the E number E310.
| Test Items | Specifications | Results |
| Appearance | White crystalline powder | White crystalline powder |
| Identification | A. Infrared absorption(197M) B. Ultraviolet absorption(197U) Sample solution:10uG/ml in methanol Acceptance criteria: Meets the requirements | Conform |
| Melting Point ºC | 146-150 | 147.6-149.2 |
| Loss on Drying % | 0.5MAX. | 0.06 |
| Residue on Ignition % | 0.1MAX. | 0.03 |
| Gallic Acid % | 0.5MAX. | 0.04 |
| Sulphate % | 0.1MAX. | 0.03 |
| Purity % | 98.0-102.0 | 99.96 |
| Heavy Metal (PB),ppm | 10MAX. | Conform |
| As(As2 o3 ),ppm | 3MAX. | 0.1% |
| Lead,ppm | 5 MAX. | Conform |
| Zn,ppm | 25MAX. | Conform |
| Mercury,ppm | 1 MAX. | Conform |
| Chlorides,ppm | 100MAX. | Conform |
| Total Chlorine,ppm | 200MAX. | Conform |
