|
Molecular Formula: C10H12O5
CAS# 121-79-9
EINECS: 204-498-2
Molecular Weight: 212.20
Propyl Gallate BP/EP
|
Synonyms: |
Propyl 3,4,5-Trihydroxybenzoate, N-Propyl Gallate |
|
Molecular Formula: |
C10H12O5 |
|
CAS# |
121-79-9 |
|
EINECS: |
|
|
Molecular Weight: |
212.20 |
|
Specifications |
|
|
Item |
Requirement |
|
Appearance |
White or almost white, crystalline powder |
|
Solubility |
Very slightly soluble in water, free soluble in alcohol and in ether. It dissolves in dilute solutions of alkali hydroxides. |
|
Identification |
First identification: B; Second identification: A,C,D A. Melting Point: 148 - 151 ℃ B. Infrared absorption C. Gallic Acid test by TLC D. Bismuth subnitrate test (bright yellow precipitate) |
|
Melting Point |
148 - 151 ℃ |
|
Appearance of solution |
Clear and not intensely colored than reference solution BY5 |
|
Gallic Acid |
Complies by TLC |
|
Total Chlorine |
200 ppm max |
|
Chlorides |
100 ppm max |
|
Heavy Metals (As Pb) |
10 ppm max |
|
Loss on Drying |
0.5% max (1g, 100 -105 ℃) |
|
Zinc |
25 ppm max |
|
Sulphated Ash |
0.1% max |
|
Assay |
97.0 -103.0% |
Application:
Antioxidant.
Packing:
In fiber drums /paper bags /cartons, 25kg net each.
Storage Recommendations:
To be stored in cool & dry place (<25 ℃). Preserve in tight containers, protected from light, and avoid contact with metals.
Shelf Life:
24 months under above-mentioned conditions and in unopened container.